Group Publications

Here you can find links to publications from group members in reverse chronological order.

Publications

“The Variability of Atmospheric Deuterium Brightness at Mars: Evidence for Seasonal Dependence”, M. Mayyasi, J. Clarke, D. Bhattacharyya, J. Deighan, N. Schneider, and B. Jakosky, J. Geophys. Res. (2017).


“Seasonal Changes in Hydrogen Escape from Mars through Analysis of HST Observations of the Martian Exosphere near Perihelion”, D. Bhattacharyya, J. Clarke, J.-Y. Chaufray, M. Mayyasi, J.-L. Bertaux, M. Chaffin, N. Schneider, and G. Villanueva, J. Geophys. Res. (2017).


“Water Vapor in the Middle Atmosphere of Mars During the 2007 Global Dust Storm”, A. Fedorova, J.-L. Bertaux, D. Betsis, F. Montmessin, O. Korablev, L. Maltagliati, and J.T. Clarke, Icarus (2017).

“Long-term Variability of Jupiter's Magnetodisk and Implications for the Aurora”, M. Vogt, E. Bunce, J. Nichols, J.T. Clarke, and W. Kurth, submitted to J. Geophys. Res. (2017).


"A Persistent Meteoric Metal Layer in the Martian Atmosphere", M. Crismani and 15 co-authors incl. J.T. Clarke, Nature Geosci., in press (2017).


“An Isolated, Bright Cusp Aurora at Saturn”, J. Kinrade and 18 co-authors incl. J.T. Clarke, submitted to J. Geophys. Res., in press (2017).


“Nitric Oxide Nightglow and Martian Mesospheric Circulation from MAVEN/IUVS Observations and LMD-MGCM Predictions”, A. Stiepen, and 21 co-authors incl. J.T. Clarke, J. Geophys. Res., and 16 co-authors incl. J.T. Clarke, J. Geophys. Res., 122, doi:10.1002/2016GA023523 (2017).


“Response of Jupiter’s Auroras to Conditions in the Interplanetary Medium as Measured by the Hubble Space Telescope and Juno”, J. Nichols and 26 co-authors incl. J.T. Clarke, Geophys. Res. Lett., in press (2017).


“Effect of the Planet Shine on the Corona : Application to the Martian Hot Oxygen”, J.-Y. Chaufray, J. Deighan, I. Stewart, N. Schneider, J.T. Clarke, and F. Leblanc, J. Geophys. Res., 121, 11,413-11,421, doi:10.1002/2016JA023273 (2017).


“Martian Mesospheric Cloud Observations by IUVS on MAVEN: Thermal Tides Coupled to the Upper Atmosphere”, M.H. Stevens and 16 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 44, doi:10.1002/2017GL072717 (2017).


“Variability of Jupiter’s IR H3+ Aurorae During Juno Approach”, L. Moore, and 11 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 44, doi:10.1002/2017GL073156 (2017).


“Variability of D and H in the Martian Upper Atmosphere Observed with the MAVEN IUVS Echelle Channel”, J.T. Clarke and 14 co-authors, J. Geophys. Res., 122, 2336-2344, doi:10.1002/2015JA023479 (2017).


“IUVS Echelle-mode Observations of Interplanetary Hydrogen: Standard for Calibration and Reference for Cavity Variations between Earth and Mars during MAVEN Cruise”, M. Mayyasi, and 12 co-authors incl. J.T. Clarke, J. Geophys. Res., 122, 2089-2105, doi:10.1002/2015JA023466 (2017).


“Analysis and Modeling of Remote Observations of the Martian Hydrogen Exosphere”, D. Bhattacharyya, J.T. Clarke, J.-L. Bertaux, J.-Y. Chaufray, and M. Mayyasi, Icarus, 281, 264-280, doi: 10.1016/j.icarus.2016.08.034 (2017).


“Stability Within Jupiter’s ‘Swirl Region’ over Moderate Timescales”, T.S. Stallard, and 10 co-authors incl. J.T. Clarke, Icarus, 268, 145-155, doi: 10.1016/j.icarus.2015.12.044 (2016).


“Angular Extension of Io Magnetic Footprint in Response to Io’s Locations”, S. Wannawichian, J.T. Clarke, and J.D. Nichols, Chiang Mai Journal of Science, 43, 870-875 (2016).


“Saturn’s Northern Auroras as Observed Using the Hubble Space Telescope”, J.D. Nichols, S. Badman, E. Bunce, J.T. Clarke, S. Cowley, G. Hunt, and G. Provan, Icarus, 263, 17-31, doi: 10.1016/j.icarus.2015.09.008 (2016).


“Retrieval of CO2 and N2 in the Martian Thermosphere Using Dayglow Observations”, J.S. Evans, and 20 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 42, doi: 10.1002/2015/GL065489 (2015).


“MAVEN IUVS Observation of the Hot Oxygen Corona at Mars”, J. Deighan, and 15 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 42, doi: 10.1002/2015/GL065487 (2015).


P. Withers, et al., (2015), The morphology of the topside ionosphere of Mars under different solar wind conditions: Results of a multi-instrument observing campaign by Mars Express in 2010, PSS, accepted.


“The Structure and Variability of Mars Upper Atmosphere as seen in MAVEN/IUVS Dayglow Observations”, S.K. Jain, and 17 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 42, doi: 10.1002/2015/GL065419 (2015).


M. Mendillo, C. Narvaez, M. Matta, M. Vogt, P. Mahaffy, M. Benna, and B. Jakosky (2015), MAVEN and Mars Initial Reference Ionosphere Model, Geophys. Res. Lett., 42, doi:10.1002/2015GL065732.


“First Study of the Martian Cold Oxygen Corona from the OI 130.4 nm by IUVS/MAVEN”, J.Y. Chaufray, and 12 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 42, doi: 10.1002/2015/GL065341 (2015).


“N2 in the Upper Atmosphere of Mars Observed by IUVS on MAVEN”, M.H. Stevens, and 16 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 42, doi: 10.1002/2015/GL065319 (2015).


Mayyasi, M. and M. Mendillo (2015), Why the Viking descent probes found only one ionospheric layer at Mars, Geophys. Res. Lett., 42, 7359-7365, doi:10.1002/2015GL065575


“Probing the Martian Atmosphere with MAVEN/IUVS Stellar Occultations”, H. Groller, and 18 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 42, doi: 10.1002/2015/GL065294 (2015).


“Ultraviolet Observations of the Hydrogen Coma of Comet C/2013 A1 (Siding Spring) by MAVEN/IUVS”, M.J. Crismani, and 14 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 42, doi: 10.1002/2015/GL065290 (2015).


“Three Dimensional Structure in the Martian H Corona Revealed by IUVS on MAVEN”, M. S. Chaffin, and 16 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 42, doi: 10.1002/2015/GL065287 (2015).


“Discovery of Diffuse Aurora on Mars”, N.M. Schneider, and 20 co-authors incl. J.T. Clarke, Science, 350, aad0313-1:5, doi: 10.1126/science.aad0313 (2015).


“Early MAVEN Deep Dip Campaigns: First Results and Implications”, S. Bougher, and 93 co-authors incl. J.T. Clarke and M. Matta, Science, 350, aad0459-1:7, doi: 10.1126/science.aad0459 (2015).


“MAVEN Observations of the Response of Mars to an Interplanetary Coronal Mass Injection”, B. Jakosky, and 93 co-authors incl. J.T. Clarke, Science, 350, aad0210-1:7, doi: 10.1126/science.aad0210 (2015).


“A Strong Seasonal Dependence in the Martian Hydrogen Exosphere”, D. Bhattacharyya, J.T. Clarke, J.-L. Bertaux, J.-Y. Chaufray, and M. Matta, Geophys. Res. Lett., 42, 8678-8685, doi: 10.1002/2015GL065804 (2015).


“MAVEN IUVS Observations of the Aftermath of the Comet Siding Spring Meteor Shower on Mars”, N.M. Schneider and 16 co-authors incl. J.T. Clarke, Geophys. Res. Lett. 42, 4755-4761, doi:10.1002/2015GL063863 (2015).


P. Withers, M. Vogt, M. Matta P. Mahaffy, M. Benna, M. Elrod, S. Bougher, C. Dong, J-Y. Chaufray, Y. Ma, B. Jakosky (2015), Comparison of model predictions for the composition of the ionosphere of Mars to MAVEN NGIMS data, Geophys. Res. Lett., 42, 8966-8976, doi:10.1002/2015GL065205.


“Characterizing Atmospheric Escape from Mars Today and Through Time, with MAVEN”, R. Lillis and 26 co-authors incl. J.T. Clarke, Sp. Sci. Rev., 195, 357-422, doi: 10.1007/s11214-015-0165-8 (2015).


“The Mars Atmosphere and Volatile Evolution (MAVEN) Mission”, B.M. Jakosky, and 69 co-authors incl. J.T. Clarke, Sp. Sci. Rev., 195, 3-48 doi:10.1007/s11214-015-0139-x (2015).


K. Fallows, P. Withers, and M. Matta (2015), Numerical simulations of the influence of solar zenith angle on properties of the M1 layer of the Mars ionosphere, J. Geophys. Res. Space Physics, 120, 6707-€“6721, doi:10.1002/2014JA020947.


“The Imaging Ultraviolet Spectrograph (IUVS) for the MAVEN Mission”, W. McClintock and 8 co-authors incl. J.T. Clarke, Sp. Sci. Rev., 195, 75-124, doi:10.1007/s11214-014-0098-7 (2015).


“Transient Internally-driven Aurora at Jupiter Discovered by Hisaki and the Hubble Space Telescope”, T. Kimura and 14 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 42, 1662-1668, doi:10.1002/2015GL063272 (2015).


“Hubble Space Telescope Observations of Sustained Pre-transit NUV Absorption at WASP-12b”, J. D. Nichols, G. A. Wynn, M. Goad, R. D. Alexander, S. L. Casewell, S. W. H Cowley, M. R. Burleigh, J.T. Clarke, and D. Bisikalo, Ap. J. Lett., 803(1), 9, doi:10.1088/0004-637X/803/1/9 (2015).


K. Fallows, P. Withers and M. Matta (2015), An observational study of the influence of solar zenith angle on properties of the M1 layer of the Mars ionosphere, J. of Geophys. Res., doi: 10.1002/2014JA020750.


Matta, M., M. Mendillo, P. Withers and D. Morgan (2014), Interpreting Mars Ionospheric Anomalies over Crustal Magnetic Field Regions using a 2-D Ionospheric Model, J. of Geophys. Res., 120, doi: 10.1002/2014JA020721.


“Mapping the Electron Energy in Jupiter’s Aurora: Hubble Spectral Observations”, J.-C. Gérard, and 8 co-authors incl. J.T. Clarke, J. Geophys. Res., 119, doi:10.1002/2014JA020514 (2014).


“A Rapid Decrease of the Hydrogen Corona of Mars”, J.T. Clarke, J.-L. Bertaux, J.-Y. Chaufray, G.R. Gladstone, E. Quemerais, J.K. Wilson, and D. Bhattacharyya, Geophys. Res. Lett., 41, doi:10.1002/2014GL061803 (2014).


“Isolating Auroral FUV Emission Lines Using Compact, Broadband Instrumentation”, P.M. Molyneux, and 10 co-authors incl J.T. Clarke, Plan. Sp. Sci., 103, 291-298, doi:10.1016/j.pss/2014.08.007 (2014).


Withers, P., K. Fallows, and M. Matta (2014), Predictions of electron temperatures in the Mars ionosphere and their effects on electron densities, Geophys. Res. Lett., 41, 2681-2686, doi:10.1002/2014GL059683.


“Dynamic Auroral Storms on Saturn”, J.D. Nichols, and 15 co-authors incl. J.T. Clarke, Geophys. Res., 41, 3323-3330, doi: 10.1002/2014GL060186 (2014).


“Observations of the Interplanetary Hydrogen During Solar Cycles 23 and 24. What Can We Deduce about the Local Interstellar Medium?”, F.E. Vincent and 7 co-authors incl. J.T. Clarke, Astrophys.J., 786, doi:10.1088/2041-8205/786/1/L1 (2014).


“Open Flux in Saturn’s Magnetosphere”, S.V. Badman, C.M. Jackman, J.D. Nichols, J.T. Clarke, J.-C. Gérard, Icarus, 213, 137-145, doi:10.1016/j.icarus.2013.12.004 (2013).


“Evolution of the Io Footprint Brightness I: Far-UV Observations”, B. Bonfond, S. Hess, J.-C. Gérard, D. Grodent, A. Radioti, V. Chantry, J. Saur, S. Jacobsen, and J.T. Clarke, Plan. Sp. Sci., doi:10.1016/j.pss.2013.05.023 (2013).


“The Multiple Spots of the Ganymede Auroral Footprint”, B. Bonfond, S. Hess, F. Bagenal, J.-C. Gérard, D. Grodent, A. Radioti, J. Gustin, and J.T. Clarke, GRL, 40, 1-5, doi:10.1002/grl.50989 (2013).


"Hubble Observations of Jupiter's North-South Conjugate Ultraviolet Aurora", J.-C. Gérard, D. Grodent, A. Radioti, B. Bonfond, and J.T. Clarke, Icarus, 226, 1559-1567, http://dx.doi.org/10.1016/j.icarus.2013.08.017 (2013).


Matta, M., M. Galand, L. Moore, M. Mendillo and P. Withers (2014), Numerical Simulations of Ion and Electron Temperatures in the Ionosphere of Mars: Multiple Ions and Diurnal Variations, Icarus, 227, p. 78 - 88, http://dx.doi.org/10.1016/j.icarus.2013.09.006.


“Longitudinal Modulation of the Brightness of Io’s Auroral Footprint Emission: Comparison with Models“, S. Wannawichian, J.T. Clarke, F. Bagenal, W. Smyth, C. Peterson, and J. Nichols, J. Geophys. Res., 118, doi:10.1002/jgra.50346 (2013).


Matta, M., P. Withers, M. Mendillo (2013), The Composition of Mars' Topside Ionosphere: Effects of Hydrogen, J. Geophys. Res., 118, p. 2681-€“2693, doi: 10.1002/jgra.50104.


“Effects of methane on giant planet's UV emissions and implications for the auroral characteristics”, J. Gustin, J.-C. Gérard, D. Grodent, G.R. Gladstone, J.T. Clarke, W. Pryor V. Dols, B. Bonfond, A. Radioti, L., Lamy, and J. Ajello, J. Molecular Spectr., vol, pgs, http://dx.doi.org/10.1016/j.jms.2013.03.010 (2013).


Mendillo, M., C. Navaez, P. Withers, M. Matta, W. Kofman and J. Mouginot (2013), Variability in Ionospheric Total Electron Content at Mars, Planet. Sp. Science, 86, p. 117 - 129, doi:10.1016/j.pss.2013.08.010.


“Remote sensing of the energy of auroral electrons in Saturn’s atmosphere: Hubble and Cassini spectral observations“, J.-C. Gérard, J. Gustin, W.R. Pryor, D. Grodent, B. Bonfond, A. Radioti, G.R. Gladstone, J.T. Clarke, and J.D. Nichols, Icarus, 223, doi:10.1016/j.icarus. 2012.11.033 (2013).


“A New Catalog of Ultraviolet Stellar Spectra”, M. Snow, A. Réberac, E. Quemerais, J.T. Clarke, W. McClintock, and T. Woods, chapter in book “Cross-Calibration of Past and Present Far UV Spectra”, ed.s E. Quemerais, M. Snow, and R. Bonnet, ISSI Scientific Report 13,Springer (2012).


“Vertical Cloud Structure of the 2009 Jupiter Impact Based on HST/WFC3 Observations”, S. Pérez-Hoyos, and 9 co-authors incl. J.T. Clarke, Icarus, 221, doi:10.1016/j.icarus.2012.10.012 (2012).


Withers, P., K. Fallows, Z. Girazian, M. Matta, B. Häusler, D. Hinson, L. Tyler, D. Morgan, M. Pätzold, K. Peter, S. Tellmann, J. Peralta, and O. Witasse (2012), A clear view of the multifaceted dayside ionosphere of Mars, Geophys. Res. Lett., 39, L18202, doi:10.1029/2012GL053193


“Origin of Electron-Cyclotron Maser Induced Radio Emissions at Ultracool Dwarfs: Magnetosphere-Ionosphere Coupling Currents”, J. D. Nichols, M. R. Burleigh, S. L. Casewell, S. W. H Cowley, G. A. Wynn, J. T. Clarke, & A. A. West, Astrophys. J., 760:59, doi:10.1088/0044-637X/760/1/59 (2012).


Lollo A., P. Withers, K Fallows, Z. Girazian, M. Matta, P.C. Chamberlin (2012), Numerical simulations of the ionosphere of Mars during a solar flare, J. Geophys. Res., 117 (A5), A05314, doi: 10.1029/2011JA017399.


“Auroral Processes on Jupiter and Saturn”, J. T. Clarke, chapter in AGU Geophysical Monograph Series 197, pp. 113-121 doi: 10.1029/2011GM001199 (2012).


“UV spectrum of Enceladus”, M. Zastrow, J. T. Clarke, A. R. Hendrix, and K. S. Noll, Icarus, 220, doi:10.1016/j.icarus.2012.04.002 (2012).


“Earth-based Detection of Uranus’ Aurorae”, L. Lamy and 16 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 39, L07105, doi:10.1029/2012GL051312 (2012).


“Auroral Evidence of Io’s Control over the Magnetosphere of Jupiter”, B. Bonfond, D. Grodent, J.-C. Gérard, T. Stallard, J.T. Clarke, M. Yoneda, A. Radioti, and J. Gustin, Geophys. Res. Lett., 39, L01105, doi:10.1029/2011GL050253 (2012).


“Long-Term Evolution of the Aerosol Debris Cloud Produced by the 2009 Impact on Jupiter”, A. Sanchez-Lavega and 43 co-authors incl. J.T. Clarke, Icarus, 10.1016/j.icarus.2011.03.015 (2011).


Mendillo M., A. Lollo, P. Withers, M. Matta, Martin Pätzold, and Sylvia Tellmann (2011), Modeling Mars' Ionosphere with Constraints from Same-Day Observations by Mars Global Surveyor and Mars Express, J. Geophys. Res., 116 (A11), doi:10.1029/2011JA016865.


“Modeling of Jupiter’s Auroral Curtain and Upper Atmospheric Thermal Structure”, I. Cohen and J.T. Clarke, J. Geophys. Res., 116, A08205, doi:10.1029/2010JA016037 (2011).


“Discovery of the Enceladus Auroral Footprint at Saturn”, W. Pryor, A.B. Rymer and 30 co-authors incl. J.T. Clarke, Nature, 472, 331-333, doi:10.1038/nature09928 (2011).


“First Earth-based Detection of a Superbolide on Jupiter”, R. Hueso and 16 co-authors incl. J.T. Clarke, Ap. J. Lett., 721, L129 – L133, doi:10.1088/2041-8205/721/2/L129 (2010).


“Variation of Saturn’s Aurora with SKR Phase”, J.D. Nichols, B. Cecconi, J.T. Clarke, S. Cowley, J.-C. Gérard, A. Grocott, D. Grodent, L. Lamy, and P. Zarka, Geophys. Res. Lett., 37, L15102, 2010 doi:10.1029/2010GL044057 (2010).


“Jupiter after the 2009 Impact: Hubble Space Telescope Imaging of the Impact-generated Debris and its Temporal Evolution”, H.B. Hammel and 11 co-authors inc. J.T. Clarke, Astrophys. J. Lett, 715, L150-154, doi:10.1088/2041-8205/715/2/L150 (2010).


“Asymmetry in the Jovian Auroral Lyman-α Line Profile due to Thermospheric High Speed Flow“, J-Y. Chaufray, G.R. Gladstone, J.H. Waite, and J.T. Clarke, J. Geophys. Res., 115, E05002, doi:10.1029/2009JE003439 (2010).


“Ten Years of Hubble Space Telescope Observations of the Variation of the Jovian Satellites’ Auroral Footprint Brightness”, S. Wannawichian, J.T. Clarke, and J. Nichols, J. Geophys. Res., 115, A02206, doi:10.1029/2009JC014456 (2010).


“PHEBUS: A Double Ultraviolet Spectrometer to Observe Mercury's Exosphere”, E. Chassefiere and 42 co-authors incl. J.T. Clarke, Plan. Sp. Sci., doi:10.1016/j.pss.2008.05.018 (2010).


“Saturn’s Equinoctial Auroras”, J. D. Nichols, and 15 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 36, L24102, doi:10.1029/2009GL041491 (2009).


“Recurrent Energization of Plasma in the Midnight-to-Dawn Quadrant of Saturn’s Magnetosphere, and its Relationship to Auroral UV and Radio Emissions”, D. Mitchell and 13 co-authors incl. J.T. Clarke, Plan. Sp. Sci. 57, 1732-1742, doi:10.1016/j.pss.2009.04.002 (2009).


“An Auroral Oval at the Footprint of Saturn’s Kilometric Radio Sources, Collocated with the UV One”. L. Lamy, B. Cecconi, R. Prangé, P. Zarka, J. Nichols, and J.T. Clarke, J. Geophys. Res., 114, A10212, doi:10.1029/2009JA014401 (2009).


“The Io UV Footprint: Location, Inter-spot Distances, and Tail Vertical Extent”, B. Bonfond, D. Grodent, J.-C. Gérard, A. Radioti, V. Dols, P. Delamere, and J.T. Clarke, J. Geophys. Res., 114, A07224, doi:10.1029/2009JA014312 (2009).


“Variation of Different Components of Jupiter’s Auroral Emission”, J. Nichols, J.T. Clarke, J.-C. Gérard, D. Grodent, and K.C. Hansen, J. Geophys. Res. 114, A06210, doi:10.1029/2009JA014051 (2009).


M. Matta, S. Smith, J. Wilson, J. Baumgardner, M. Mendillo (2009), The sodium tail of the Moon, Icarus, 204 (2), p. 409-417.


“Auroral Footprint of Ganymede”, D. Grodent, B. Bonfond, A. Radioti, J.-C. Gérard, X. Jia, J. Nichols, and J.T. Clarke, J. Geophys. Res., 114, A07212, doi:10.1029/2009JA014289 (2009).


“Interplanetary Lyman α Observations: Intensities from Voyagers and Line Profiles from HST/STIS”, E. Quemerais, R. Lallement, B. Sandel, and J.T. Clarke, Sp. Sci. Rev., 143, 151-162, doi:10.1007/s11214-008-9379-3 (2009).


“Response of Jupiter’s and Saturn’s Auroral Activity to the Solar Wind”, J.T. Clarke and 17 co-authors, J. Geophys. Res., 114, A05210, doi:10.1029/2008JA013694 (2009).


“Observations of Polar Auroral Filaments”, J.D. Nichols, J.T. Clarke, J.-C. Gérard, and D. Grodent, Geophys. Res. Lett. 36, L08101, doi:10.1029/2009GL03757 (2009).


“Transient Auroral Features at Saturn: Signatures of Energetic Particle Injections in the Magnetosphere”, A. Radioti, and 9 co-authors incl. J.T. Clarke, J. Geophys. Res., 114, A03210, doi:10.1029/2008JA013632 (2009).


“The Altitude of Saturn’s Aurora and Its Implications for the Characteristic Energy of Precipitated Electrons”, J.-C. Gérard, B. Bonfond, J. Gustin, D. Grodent, J.T. Clarke, D. Bisikalo, and V. Shematovich, Geophys. Res. Lett., 36, L02202, doi:10.1029/2008GL036554 (2009).


“Identification of Saturn's Magnetospheric Regions and Associated Plasma Processes: Synopsis of Cassini Observations During Orbit Insertion”, N. Andre and 31 co-authors incl. J.T. Clarke, Rev. Geophys., 46, RG4008, doi:10.1029/2007RG000238 (2008).


“The Rotation of Saturn’s Southern Auroral Oval”, J.D. Nichols, J.T. Clarke and 8 co-authors, J. Geophys. Res., 113, A11205, doi:10.1029/2008JA013444 (2008).


“Auroral Current Systems in Saturn’s Magnetosphere: Comparison of Theoretical Models with Cassini and HST Observations”, S.W.H. Cowley, C. Arridge, E. Bunce, J. Clarke, A. Coates, M. Dougherty, J.-C. Gérard, D. Grodent, J. Nichols, and D. Talboys, Ann Geophys., 26, 2613-2630 (2008).


“Origin of Saturn’s Aurora: Simultaneous Observations by Cassini and HST”, E.J. Bunce and 11 co-authors incl. J.T. Clarke, J. Geophys. Res., 113, A09209, doi:10.1029/2008JA013257 (2008).


“Auroral Evidence of a Localized Magnetic Anomaly in Jupiter’s Northern Hemisphere”, D. Grodent, B. Bonfond, J.C. Gérard, A. Radioti, J. Gustin, J.T. Clarke, J. Nichols, and J. Connerney, J. Geophys. Res., 113, A09201, doi:10.1029/2008JA013185 (2008).


“The Variation of Io's Auroral Footprint Brightness with the Location of Io in the Plasma Torus”, A.W. Serio and J.T. Clarke, Icarus, 197, 368-374 (2008).


“Interaction Evidence Between Enceladus’ Atmosphere and Saturn’s Magnetosphere”, S. Wannawichian, J.T. Clarke, and D. Pontius, J. Geophys. Res., 113, A07217, doi:10.1029/2007JA012899 (2008).


“Changing Characteristics of Jupiter’s Little Red Spot”, A.F. Cheng and 14 co-authors incl. J.T. Clarke, A.J., 135, 2446-2452 (2008).


“Auroral Polar Dawn Spots – Signatures of Internally Driven Reconnection Processes at Jupiter’s Magnetotail”, A. Radioti, D. Grodent, J.-C. Gérard, B. Bonfond, and J.T. Clarke, Geophys. Res. Lett., 35, L03104, doi:10.1029/2007GL032460 (2008).


“Jupiter’s Nightside Airglow and Aurora”, G.R. Gladstone and 14 co-authors incl. J.T. Clarke, Science, 318, 229-231 (2007).


“The H Lyman-α Emission Line from the Upper Atmosphere of Jupiter: Parametric Radiative Transfer Study and Comparison with Data”, L. Ben Jaffel, Y.J. Kim, and J.T. Clarke, Icarus, 190, 504-527 (2007).


“Response of Jupiter’s UV auroras to interplanetary conditions as observed by the Hubble Space Telescope during the Cassini flyby campaign”, J.D. Nichols, E.J. Bunce, J.T. Clarke, S.W.H. Cowley, J.-C. Gérard, D. Grodent, and W.R. Pryor, J. Geophys. Res., 112, A02203, doi:10.1029/2006JA012005 (2007).


“Saturn’s Auroral Morphology and Activity during Quiet Magnetospheric Conditions”, J.-C. Gérard, D. Grodent, S. Cowley, D. Mitchell, W. Kurth, J.T. Clarke, E. Bunce, J. Nichols, M. Dougherty, F. Crary, and A. Coates, J. Geophys. Res., 111, A12210, doi:10.1029/2006JA011965 (2006).


“Cassini Observations of the Interplanetary Medium Upstream of Saturn and their Relation to the Hubble Space Telescope Aurora Data”, E.J. Bunce, S. Cowley, C. Jackson, J.T. Clarke, F. Crary, and M. Dougherty, Adv. Sp. Res., 38, 806-814 (2006).


“Characteristics of Jovian Morning Bright Aurora from HST/STIS Imaging and Spectral Observations”, J. Gustin, S. Cowley, J.-C. Gérard, R. Gladstone, D. Grodent, and J.T. Clarke, J. Geophys. Res., 111, A09220, doi:10.1029/2006JA011730 (2006).


“Interplanetary Lyman α Line Profiles: Variations during Solar Activity Cycle”, E. Quémerais, R. Lallement, J.-L. Bertaux, D. Koutroumpa, J.T. Clarke, E. Kyrola, and W. Schmidt, Astr & Astrph. 455, 1135-1142 (2006).


“The Morphology of the Ultraviolet Io Footprint Emission and its Control by Io’s Location”, J.-C. Gérard, A. Saglam, D. Grodent, and J.T. Clarke, J. Geophys. Res., 111, A04202, doi:10.1029/2005JA011327 (2006).


“Europa’s FUV Auroral Tail on Jupiter”, D. Grodent, J.-C. Gérard, J. Gustin, B. Mauk, J. Connerney, and J.T. Clarke, Geophys. Res. Lett., 33, L06201, doi:10.1029/2005GL025487 (2006).


“Open Flux Estimates in Saturn’s Magnetosphere during the January 2004 HST-Cassini Campaign, and Implications for Reconnection Rates”, S.V. Badman, E. Bunce, J.T. Clarke, S. Cowley, J.C. Gérard, D. Grodent, and S. Milan, J. Geophys. Res., 110, A11216, doi:10.1029/2005JA011240 (2005).


“The Cassini Campaign Observations of the Jupiter Aurora by the Ultraviolet Imaging Spectrograph and the Space Telescope Imaging Spectrograph”, J.M. Ajello, and 8 co-authors incl. J.T. Clarke, Icarus, 178, 327-345 (2005).


“Cassini UVIS Observations of Jupiter’s Auroral Variability”, W.R. Pryor and 22 co-authors incl. J.T. Clarke, Icarus, 178, 312-326 (2005).


“Signature of Saturn’s Auroral Cusp: Simultaneous Hubble Space Telescope FUV Observations and Upstream Solar Wind Monitoring”, J.-C. Gérard, D. Bunce, D. Grodent, S. Cowley, J.T. Clarke, and S. Badman, J. Geophys. Res., 110, A11201, doi:10.1029/2005JA011094 (2005).


“Interplanetary Conditions and Magnetospheric Dynamics During the Cassini Orbit Insertion Fly-through of Saturn’s Magnetosphere”, C.M. Jackman, and 7 co-authors include J.T. Clarke, J. Geophys. Res., 110, doi:10.1029/2005JA011054 (2005).


“The Global Morphology of Saturn’s Southern Ultraviolet Aurora”, D. Grodent, J.-C. Gérard, S. Cowley, E. Bunce, and J.T. Clarke, J. Geophys. Res., 110, A07215, doi:10.1029/2004JA010983 (2005).


“Effects of ring shadowing on the detection of electrostatic discharges at Saturn”, M. Mendillo, L. Moore, J. Clarke, I. Mueller-Wodarg, W. Kurth, and M. Kaiser, Geophys. Res. Lett., 32, doi:10.1029/2004GL021034 (2005).


“Reconnection in a Rotation-dominated Magnetosphere and its Relation to Saturn’s Auroral Dynamics”, Cowley, S.W.H., and 8 coauthors incl. J.T. Clarke, J. Geophys. Res., 110, A02201, doi:10.1029/2004JA010796 (2005).


“An Earth-like Correspondence Between Saturn’s Ultraviolet Auroral Features and Radio Emission”, W. Kurth, and 14 co-authors incl. J.T. Clarke, Nature, 433, 722-725 (2005).


“Signature of Saturn’s Auroral Cusp: Simultaneous Hubble Space Telescope FUV Observations and Upstream Solar Wind Monitoring”, J.-C. Gérard, D. Bunce, D. Grodent, S. Cowley, J.T. Clarke, and S. Badman, J. Geophys. Res., 110, A11201, doi:10.1029/2005JA011094 (2005).


“Interplanetary Conditions and Magnetospheric Dynamics During the Cassini Orbit Insertion Fly-through of Saturn’s Magnetosphere”, C.M. Jackman, and 7 co-authors include J.T. Clarke, J. Geophys. Res., 110, doi:10.1029/2005JA011054 (2005).


“The Global Morphology of Saturn’s Southern Ultraviolet Aurora”, D. Grodent, J.-C. Gérard, S. Cowley, E. Bunce, and J.T. Clarke, J. Geophys. Res., 110, A07215, doi:10.1029/2004JA010983 (2005).


“Effects of ring shadowing on the detection of electrostatic discharges at Saturn”, M. Mendillo, L. Moore, J. Clarke, I. Mueller-Wodarg, W. Kurth, and M. Kaiser, Geophys. Res. Lett., 32, doi:10.1029/2004GL021034 (2005).


“Reconnection in a Rotation-dominated Magnetosphere and its Relation to Saturn’s Auroral Dynamics”, Cowley, S.W.H., and 8 coauthors incl. J.T. Clarke, J. Geophys. Res., 110, A02201, doi:10.1029/2004JA010796 (2005).


“An Earth-like Correspondence Between Saturn’s Ultraviolet Auroral Features and Radio Emission”, W. Kurth, and 14 co-authors incl. J.T. Clarke, Nature, 433, 722-725 (2005).


“Solar Wind Dynamic Pressure and Electric Field as the Main Factors Controlling Saturn’s Aurorae”, F.J. Crary, J.T. Clarke, and 12 co-authors, Nature, 433, 720-722 (2005).


“Morphological Differences Between Saturn’s Ultraviolet Aurorae and those of Earth and Jupiter”, J.T. Clarke, and 12 co-authors, Nature, 433, 717-719 (2005).


“Energy-flux relationship in the FUV Jovian aurora deduced from HST-STIS spectral observations”, J. Gustin, J.-C. Gérard, D. Grodent, S.W.H. Cowley, J.T. Clarke, A. Grard, J. Geophys. Res., 109, A10, 10.1029/2003JA010365 (2004).


“Jupiter’s Aurora”, J.T. Clarke, D. Grodent, S. Cowley, E. Bunce, J. Connerney, and T Satoh, in Jupiter, ed. F. Bagenal et al., Cambridge University Press, ISBN 0-521-81808-7, 2004, p. 639 - 670 (2004). (private library)


“DYNAMO: a Mars upper atmosphere package for investigating solar wind interaction and escape processes, and mapping Martian fields”, E. Chassefière, and 45 co-authors include. J.T. Clarke, Adv. Sp. Res., 33, 2228 (2004).


“Characteristics of Saturn’s FUV Aurora Observed with the Space Telescope Imaging Spectrograph”, J.-C. Gérard, D. Grodent, J. Gustin, A. Salam, J.T. Clarke, and J. Trauger, J. Geophys. Res., 109, A9, doi:10.1029/2004JA010513 (2004).


“A Possible Auroral Signature of a Magnetotail Reconnection Process at Jupiter”, D. Grodent, J.-C. Gérard, J.T. Clarke, R. Gladstone, and H. Waite, J. Geophys. Res., 109, A5, doi:10.1029/2003JA010341 (2004).


“Jupiter’s Main Auroral Oval Observed with HST-STIS”, D. Grodent, J.T. Clarke, H. Waite, S. Cowley, J.C. Gérard, and J. Kim, J. Geophys. Res., 108, A10, doi:10.1029/2003JA010017 (2003).


“Jupiter’s Polar Auroral Emissions Observed with HST-STIS”, D. Grodent, J.T. Clarke, H. Waite, S. Cowley, J.C. Gérard, and J. Kim, J. Geophys. Res., 108, A10, doi:10.1029/2003JA010017 (2003).


“Spectral Observations of Transient Features in the FUV Jovian Polar Aurora”, J.-C. Gérard, J. Gustin, D. Grodent, J.T. Clarke, and A. Grard, J. Geophys. Res., 108, A8, doi:10.1029/2003JA009901 (2003).


“Observations of Planetary Atmospheres with HST and Beyond”, J.T. Clarke, in Hubble’s Science Legacy: Future Optical-Ultraviolet Astronomy from Space, ASP Conference Series, 29, 77 (2003).


“The Role of NASA's Planetary Sub-Orbital Program in Our Exploration of the Solar System”, W.M. Harris, A. Stern, J.T. Clarke, and D. Slater, in The Future of Solar System Exploration (2003-2013) -- Community Contributions to the NRC Solar System Exploration Decadal Survey, ed. Mark V. Sykes, 272, 375 (2002).


“Soft X-Ray Emissions from Planets, Moons, and Comets”, A. Bhardwaj and 24 co-authors incl. J.T. Clarke, Proc. ESLAB 36 Symposium, ESA SP-514, p. 215 (2002).


“The Excitation of the FUV Io Trail on Jupiter: Characterization of the Electron Precipitation”, J.-C. Gérard, J. Gustin, D. Grodent, P. Delamere, and J.T. Clarke, J. Geophys. Res., 107, 30-1 (2002).


“Spatially Resolved Far Ultraviolet Spectroscopy of the Jovian Aurora”, J. Gustin, D. Grodent, J.-C. Gérard, & J.T. Clarke, Icarus, 157, 91 (2002).


“Transient Aurora on Jupiter from Injections of Magnetospheric Electrons”, B.H. Mauk, J.T. Clarke, D. Grodent, H. Waite, C. Paranicas, and D. Williams, Nature, 415, 1003 (2002).


“A Pulsating Auroral X-ray Hot Spot on Jupiter”, G.R. Gladstone, and 14 co-authors incl. J.T. Clarke, Nature, 415, 1000 (2002).


“Ultraviolet Emissions from the Magnetic Footprints of Io, Ganymede, and Europa on Jupiter”, J. T. Clarke, and 10 co-authors, Nature, 415, 997 (2002).


“Jupiter's aurora: solar wind and rotational influences”, Waite, J.H., J.T. Clarke, R.Walker, J. Connerney, D. McComas, P. Riley, and W. Lewis, in Highlights of Astronomy, Proc. of the the IAU, 12, ed. H. Rickman, Astronomical Society of the Pacific, p. 606 (2002).


“NOTE: Detection of Rapidly Varying H2 Emissions in Jupiter's Aurora from the Galileo Orbiter”, W. R. Pryor, A.I.F. Stewart, K.E. Simmons, J.M. Ajello, W.K. Tobiska, J.T. Clarke, G.R. Gladstone, Icarus, 151, 314 (2001).


“Scientific objectives of the DYNAMO mission”, E. Chassfière and 68 co-authors incl. J.T. Clarke, Adv. Sp. Res., 27, no. 11, 1851 (2001).


“Analysis of the H Lyman α Emission Line Profile from Jupiter’s Aurora”, D. Rego, J.T. Clarke, L. Ben Jaffel, G.E. Ballester, R. Prangé, & J. McConnell, Icarus, 150, 234 (2001).


“Auroral Flare Observed at Jupiter with the Hubble Space Telescope”, J.H. Waite, Jr., G.R. Gladstone, W. Lewis, R. Goldstein, D. McComas, P. Riley, R. Walker, P. Robertson, S. Desai, J.T. Clarke, & D. Young, Nature, 410, 787 (2001).


“Diagnostics of the Jovian aurora deduced from ultraviolet spectroscopy : model and GHRS observations”, V. Dols, J.C. Gérard, J.T. Clarke , J. Gustin, and D. Grodent, Icarus, 147, 251 (2000).


“Multispectral Observations of Jupiter’s Aurora”, J.H. Waite, Jr., and 12 co-authors incl. J. T. Clarke, Adv. Sp. Res., 26, 1453 (2000).


“Jet-Induced Star Formation in Centaurus A”, J.R. Mould and 22 co-authors incl. J. T. Clarke, Astrophys. J., 536, 266 (2000).


“Ballistic Reconstruction of Ejecta Motion Subsequent to the Impact of Shoemaker-Levy 9 Fragments A and G with Jupiter”, K.L. Jessup, J.T. Clarke, G.E. Ballester, & H.B. Hammel, Icarus, 146, 19 (2000).


“Jupiter’s Polar Regions in the Ultraviolet as Imaged by HST/WFPC-2: Auroral-aligned Features and Zonal Motions”, M.B. Vincent, J.T. Clarke, et al., Icarus, 143, 205 (2000).


“Mapping Jupiter’s Latitudinal Bands and Great Red Spot Using HST/WFPC-2 Far-Ultraviolet Images”, M.B. Vincent, J.T. Clarke, et al., Icarus, 143, 189(2000).


“HST Observations of the Sculptor Dwarf Spheroidal Galaxy”, J. Monkiewicz and 19 co-authors incl. J.T. Clarke, Pub. Astr. Soc. Pac., 111, 1392 (1999).


“Observations and Implications of the Star Formation History of the LMC”, J. Holtzman and 16 co-authors incl. J.T. Clarke, Astron. J., 118, 2262 (1999).


“Analysis of Mid-Latitude Auroral Emissions Observed During the Impact of Comet Shoemaker-Levy 9 with Jupiter”, R. Bauske, M. Combi, and J.T. Clarke, Icarus, 142, 106 (1999).


“Stellar Populations at the Center of IC 1613”, A. Cole and 20 co-authors incl. J.T. Clarke, Astron. J., 118, 1657 (1999).


“Estimates of Atomic Deuterium Abundance and Lyman-Alpha Airglow in the Thermosphere of Jupiter”, C.D. Parkinson, E. Griffioen, J. McConnell, L. Ben Jaffel, A. Vidal-Madjar, J.T. Clarke, and G.R. Gladstone, Geophys. Res. Lett., 26, 3177 (1999).


“The Etched Hourglass Nebula MyCn 18: I. Hubble Space Telescope Observations”, R. Sahia and 17 co-authors incl. J.T. Clarke, Astron. J., 118, 468 (1999).


“WFPC 2 Observations of Compact Star Cluster Nuclei in Low Luminosity Spiral Galaxies”, L. Matthews and 17 co-authors incl. J.T. Clarke, Astron. J., 118, 208 (1999).


“A Variable Asymmetry in the Circumstellar Disk of HH 30”, K. Stapelfeldt and 15 co-authors incl. J.T. Clarke, Astrophys. J. Lett., 516, L95 (1999).


“Deep HST Observations of Blue Star Clusters in NGC 3597”, M. Carlson and 17 co-authors incl. J.T. Clarke, Astron. J., 117, 1700 (1999).


“Detection of Surface Brightness Fluctuations in NGC 4373 Using the HST”, M. Pahre and 18 co-authors incl. J.T. Clarke, Astrophys. J., 515, 79 (1999).


“HST WFPC 2 Imaging of XZ Tauri: Time Evolution of a Herbig-Haro Bow Shock”, J.E. Krist and 15 co-authors incl. J.T. Clarke, Astrophys. J. Lett., 515, L35 (1999).


“Laboratory Studies of Alkali Metal Filter Deposition, Ultraviolet Transmission, and Visible Blocking”, J.T. Clarke, W.R. Skinner, M.B. Vincent, T. Irgang, V. Suratkal, H. Grassl, and J.T. Trauger, Applied Optics, 38, 1803 (1999).


“HST Imaging of the Circumstellar Nebulosity of T Tauri”, K. Stapelfeldt and 16 co-authors incl. J.T. Clarke, Astrophys. J., 508, 736 (1998).


“Far-Ultraviolet and Visible Imaging of the Nucleus of the Galaxy M32”, A. Cole and 17 co-authors incl. J.T. Clarke, Astrophys. J., 505, 230 (1998).


“WFPC 2 Studies of the Crab Nebula II: Ionization Structure of the Crab Filaments”, R. Sankrit and 17 co-authors incl. J.T. Clarke, Astrophys. J., 504, 344 (1998).


"Saturn's hydrogen aurora: Wide field and planetary camera 2 imaging from the Hubble Space Telescope”, J.T. Trauger and 15 co-authors incl. J.T. Clarke, J. Geophys. Res., 103, E9, 20,237 (1998).


“HST Imaging of Jupiter’s UV Aurora During the Galileo Orbiter Mission”, J.T. Clarke, G. Ballester, J. Trauger, J. Ajello, W. Pryor, K. Tobiska, J. Connerney, G.R. Gladstone, H. Waite, L. Ben Jaffel, and J.-C. Gérard, J. Geophys. Res., 103, E9, 20,217 (1998).


“Simultaneous Extreme Ultraviolet and Far Ultraviolet Observations of Jupiter Aurora from the Galileo Orbiter”, J. Ajello, and 13 co-authors incl. J.T. Clarke, J. Geophys. Res.,103, E9, 20,125 (1998).


“Ionization Structure of the 30 Doradus Nebula as seen with HST/WFPC 2”, P. Scowen and 17 co-authors incl. J.T. Clarke, Astron. J., 116, 163 (1998).


“HST WFPC 2 Imaging of FS Tauri and Haro 6-5B”, J. Krist and 16 co-authors incl. J.T. Clarke, Astrophys. J., 501, 841 (1998).


“Deep Hubble Space Telescope Observations of Star Clusters in NGC 1275”, M.N. Carlson and 17 co-authors incl. J.T. Clarke, Astron. J., 115, 1778-1790 (1998).


“HST/GHRS Observations of the Velocity Structure of the Interplanetary Medium”, J.T. Clarke, R. Lallement, J.-L. Bertaux, H. Fahr, E. Quemerais, & Horst Scherer, Astrophys. J., 499, 482, (1998).


“Stellar Populations in Three Outer Fields of the Large Magellanic Cloud”, M.C. Geha, and 18 co-authors incl. J.T. Clarke, Astron. J., 115, 1045 (1998).


“Asteriod Trails in HST WFPC 2 Images: First Results”, R. Evans and 23 co-authors incl. J.T. Clarke, Icarus, 131, 261 (1998).


“HST Observations of the Draco Dwarf Spheroidal Galaxy”, C.J. Grillmair, and 17 co-authors incl. J.T. Clarke, Astron. J., 115, 144 (1998).


“Imaging of the Egg Nebula (CRL 2688) with WFPC2/HST: A History of AGB/Post-AGB Giant Branch Mass Loss”, R. Sahai and 16 co-authors incl. J.T. Clarke, Astrophys. J., 493, 301 (1998).


“Refined Analysis of interplanetary H-Ly α spectra obtained with the HST GHRS spectrometer”, H. Scherer, H.J. Fahr, and J.T. Clarke, Astr. Astrphys., 325, 745, (1997).


“The Pele Plume (Io): Observations with the Hubble Space Telescope”, J.R. Spencer, P. Sartoretti, G.E. Ballester, A.S. McEwen, J.T. Clarke, & M. McGrath, Geophys. Res. Lett., 24, 247 (1997).


“HST WFPC 2 Images of Emission Nebulosity Near XZ Tauri”, J. Krist and 16 co-authors incl. J.T. Clarke, Astrphys. J., 481, 447 (1997).


“The Star Formation History in the Vicinity of NGC 1866 in the LMC”, B. Stappers, J. Mould, K. Sebo and 19 coauthors incl. J.T. Clarke,Pub. Astr. Soc. Pac., 109, 292 (1997).


“Stellar Populations in the Dwarf Elliptical Galaxy NGC 147”, M.-S., Han, and 20 co-authors incl. J.T. Clarke, Astr. J., 113, 1001 (1997).


“Stellar Populations in the LMC: Evidence for a Significant Number of Older Stars or a Steeper IMF?”, J. Holtzman and 18 co-authors incl. J.T. Clarke, Astr. J. , 113, 656 (1997).


“Simultaneous Spectroscopy and Imaging of the Jovian Aurora with the Hopkins Ultraviolet Telescope and the Hubble Space Telescope”, P.F. Morrissey, P.D. Feldman, J.T. Clarke, B.C. Wolfven, D.F. Strobel, S.T. Durrance, and J.T. Trauger, Astrophys. J. Lett., 476, 918 (1997).


“Low Mass Stars in an Outer Field in NGC 6397”, J. Mould and 20 co-authors incl. J.T. Clarke, Pub. Astr. Soc. Pac., 108, 682 (1996).


“HST Observations of the Disk and Jet of HH30”, C.J. Burrows and 15 co-authors incl. J.T. Clarke, Astrophys. J., 473, 437 (1996).


“Analysis of Jovian Auroral H Ly-α Emission (1981-1990)”, W.M. Harris, J.T. Clarke, M.A. McGrath, and G.E. Ballester, Icarus, 123, 350 (1996).


“Time-Resolved Observations of Jupiter’s Far-UV Aurora: Comparison of WFPC2 and IUE”, G.E. Ballester, J.T. Clarke, and 20 co-authors, Science, 274, 409 (1996).


“Far-UV Imaging of Jupiter’s Aurora and the Io ‘Footprint’ with HST/WFPC 2”, J.T. Clarke, and 20 co-authors, Science, 274, 404 (1996).


“Discovery of a Young, Luminous, Compact Stellar Cluster in the Starburst Galaxy NGC 253”, A.M. Watson and 20 co-authors incl. J.T. Clarke, Astr.J., 112, 534 (1996).


“Star Clusters in Interacting and Cooling Flow Galaxies”, J. Holtzman and 19 co-authors incl. J.T. Clarke, Astr.J., 112, 416 (1996).


“WFPC 2 Observations of the Cooling Flow Elliptical in Abell 1795”, J. Pinkney, and 18 co-authors incl. J.T. Clarke, Astrophys. J. Lett., 468, L13 (1996).


“Evidence for Supersonic Turbulence in the Upper Atmosphere of Jupiter”, C. Emerich, L. Ben Jaffel, J.T. Clarke, R. Prangé, R. Gladstone, J. Sommeria, and G. Ballester, Science, 273, 1085 (1996).


“Visible and Far Ultraviolet WFPC2 Imaging of the Nucleus of the Galaxy NGC 205”, D. Heath-Jones, and 17 co-authors incl. J.T. Clarke, Astrophys. J., 466, 742 (1996).


“Main Sequence Stars and the Star Formation History of the Outer Disk in the LMC”, J. Gallagher and 19 co-authors incl. J.T. Clarke, Astrophys. J., 466, 732 (1996).


“Detection of the Tip of the Red Giant Branch in NGC 5128”, R. Soria, and 16 co-authors incl. J.T. Clarke, Astrophys. J., 465, 79 (1996).


“Far Ultraviolet Imaging of the Globular Cluster NGC 7099 with the Second Wide-Field and Planetary Camera”, J. Mould & 20 co-authors incl. J.T. Clarke, Astrophys. J., 461, 762 (1996).


“WFPC2 Studies of the Crab nebula III: Magnetic Rayleigh-Taylor Instabilities”, J. Hester and 20 co-authors incl. J.T. Clarke, Astrophys. J., 456, 225 (1996).


“The Line Profile of H Lyman-α from Dissociative Excitation of H2”, J.M. Ajello, I. Kanik, S. Ahmed, and J.T. Clarke, J. Geophys. Res., Planets, 100, 26411 (1995).


“Highly Integrated Pluto Payload System (HIPPS): a Sciencecraft Instrument for the Pluto Mission”, S. Alan Stern and 10 co-authors incl. J.T. Clarke, Proc. S.P.I.E., 2518, 39 (1995).


“HST Observations of the SN1987A Triple Ring Nebula”, C.J. Burrows and 18 co-authors, incl. J.T. Clarke, Astrophys. J., 452, 680 (1995).


“Far-UV Emissions from the SL9 Impacts with Jupiter”, G.E. Ballester, and 22 co-authors incl. J.T. Clarke, Geophys. Res. Lett., 22, 2425 (1995).


“WFPC 2 Imaging of the Circumstellar Nebulosity of HL Tauri”, K. R. Stapelfeldt and 17 co-authors incl. J.T. Clarke, Astrophys. J., 449, 888 (1995).


“HST/GHRS Observations of the Interplanetary Medium Downwind and in the Inner Solar System”, J.T. Clarke, R. Lallement, J.L. Bertaux, and E. Quemerais, Astrophys J., 448, 893 (1995).


“ROSAT Observations of a Burst of X-ray Emissions from Jupiter During the Impact of Comet S-L 9”, J.H. Waite, Jr., and 11 co-authors incl. J. T. Clarke, Science, 268, 1598 (1995).


“WFPC2 Studies of the Crab Nebula. I. HST and ROSAT Imaging of the Synchrotron Nebula”, J. Jeff Hester, and 20 co-authors incl. J.T. Clarke, Astrophys. J., 448, 240 (1995).


“Auroral Signature of Comet SL9 in the Jovian Magnetosphere”, R. Prangé, I. Engle, J.T. Clarke, M. Dunlop, G. Ballester, W. Ip, S. Maurice, and J. Trauger, Science, 267, 1317 (1995).


“Hubble Space Telescope Far-Ultraviolet Imaging of Jupiter During the Impacts of Comet Shoemaker-Levy 9”, J.T. Clarke, and 20 co-authors, Science, 267, 1302 (1995).


“The Performance and Calibration of the WFPC 2”, J.A. Holtzman, and 15 co-authors incl. J.T. Clarke, Pub. Astr. Soc. Pac., 107, 156 (1995).


“First HST Observations of the Brightest Stars in the Virgo Galaxy M100 = NGC 4321”, W.L. Freedman, and 25 co-authors incl. J.T. Clarke, Astrophys.J. Lett., 435, L31 (1994).


“Far Ultraviolet Imaging of the Globular Cluster NGC 6681 with WFPC 2”, A.M. Watson and 14 co-authors incl. J.T. Clarke, Astrophys. J. Lett., 435, L55 (1994).


“The On-orbit Performance of WFPC 2”, J. Trauger, and 16 co-authors, incl. J.T. Clarke Astrophys. J. Lett., 435, L3 (1994).


“ROSAT Observations of the Jupiter Aurora”, J.H. Waite, F. Bagenal, F. Seward, C. Na, G. R. Gladstone, T.E. Cravens, K.C. Hurley, J.T Clarke, R. Elsner, and S.A. Stern, J. Geophys. Res., 99, A8, 14799 (1994).


“EUVE Observations of the Io Plasma Torus”, D. Hall, F. Bagenal, J. Clarke, P. Feldman, R. Gladstone, M. McGrath, W. Moos, N. Schneider, D. Shemansky, D. Strobel, H. Waite, Astrophys. J. Lett., 426, L51 (1994).


“HST UV Spectral Observations of Io Passing into Eclipse”, J.T. Clarke, J. Ajello, J. Luhmann, N. Schneider, and I. Kanik, J. Geophys. Res., Planets , 99, E4, 8387 (1994).


“High Resolution Ultraviolet Spectrograph for Sounding Rocket Measurements of Planetary Emission Line Profiles”, W.M. Harris, J.T. Clarke, J.R. Caldwell, P.D. Feldman, B.C. Bush, D.M. Cotton, and S. Chakrabarti, Optical Engineering, 32, 3016, (1993).


“Deceleration of Interstellar Hydrogen at the Heliospheric Interface”, R. Lallement, J.-L. Bertaux, and J.T. Clarke, Science , 260, 1095 (1993).


"The Lyman alpha Bulge of Jupiter: the Effects of Line Broadening", L. Ben Jaffel, J.T. Clarke, R. Prangé, G.R. Gladstone, and A. Vidal-Madjar, Geophys. Res. Lett., 20, 747 (1993).


“HST Observations of Io Passing Into Eclipse“, J.T. Clarke, J. Ajello, J. Luhmann, and N. Schneider, Science with the Hubble Space Telescope, ESO Proc. No. 44, 497 (1993).


“A Search for the Deuterium Lyman-alpha Emission from the Atmosphere of Mars”, J.-L. Bertaux, J.T. Clarke, M. Mumma, T. Owen, and E. Quemerais, Science with the Hubble Space Telescope, ESO Proc. No. 44, 459 (1993).


"HI Ly-α emission from Saturn (1980-1990)", M.A. McGrath and J.T. Clarke, J. Geophys. Res., 97, 13691 (1992).


"Variability in the Outer Planet Aurora", J.T. Clarke, COSPAR Symp. S.5, Adv. in Sp. Res., vol. 12, no. 8, p. 137, (1992).


"Pluto's Extended Atmosphere: an Escape Model and Initial Observations", J.T. Clarke, S.A. Stern, and L.M. Trafton, Icarus, 95, 173 (1992).


"Jupiter's Dayglow H Ly α Emission Line Profile", J.T. Clarke, G.R. Gladstone, and L. Ben Jaffel, Geophys. Res. Lett., 18, 1935 (1991).


"The Center to Limb Variation in Jupiter's H Ly α Emission", J.T. Clarke and G.R. Gladstone, J. Geophys. Res., 95, 21281, (1990).


"Current Ideas about the Uranus Electroglow", J.T. Clarke, COSPAR TMC.2.1.2, Adv. Space Research, 10., 121, (1990).


"Detection of H3+ on Jupiter", P. Drossart, and 9 co-authors incl. J.T. Clarke, Nature, 340, 539 (1989).


"Doppler-shifted H Ly α Emission from Jupiter's Aurora", J.T. Clarke, J. Trauger, and J.H. Waite, Geophys. Res. Lett., 16, 587 (1989).


"The Aurora and Airglow of Jupiter", J.T. Clarke, J. Caldwell, T. Skinner, and R. Yelle, in NASA-SP 494: Proceedings of the Flagstaff Workshop on Time-Variable Phenomena in the Jovian System, p. 211 (1989).


"Ionospheric Dynamo Theory for Production of Far Ultraviolet Emissions on Uranus", M.K. Hudson, J.T. Clarke, and J.A. Warren, J.Geophys.Res., 94, 6517 (1989).


"IUE Observations of Neptune for H Ly α Emission", J.T. Clarke, Geophys. Res. Lett., 15, 701 (1988).


"The Jovian Aurora: Electron or Ion Precipitation?", J.H. Waite, J.T. Clarke, and T.E. Cravens, J.Geophys.Res., 93, 7244 (1988).


"The Excitation of the Far UV Electroglow Emissions from Uranus, Saturn, and Jupiter", J.T. Clarke, M.K. Hudson, and Y.L. Yung, J.Geophys.Res., 92, 15139 (1987).


"Line Formation in the Hot Spot Region of Cataclysmic Variable Accretion Disks", M. Elitzur, J.T. Clarke, and T.R. Kallman, Astrophys. J., 324, 405 (1987).


"Time-Resolved Spectrophotometry of the AM Her System E2003+225", P. McCarthy, J.T. Clarke, and S. Bowyer, Astrophys. J., 311, 873 (1986).


"A Multi-Wavelength Study of the Long Period AM Her System E2003+225", J. Osborne, J. Bonnet-Bidaud, S. Bowyer, P. Charles, L. Chiapetti, J. Clarke, J. Henry, G. Hill, S. Kahn, L. Maraschi, K. Mukai, A. Treves, and S. Vrtilek, M.N.R.A.S., 221, 823 (1986).


"Continued Observations of the H Ly α Emission from Uranus", J. Clarke, S. Durrance, S. Atreya, A. Barnes, J. Belcher, M. Festou, C. Imhoff, J. Mihalov, W. Moos, J. Murthy, A. Pradhan, and T. Skinner, J. Geophys. Res., 91, 8771 (1986).


"FUV and Optical Spectrophotometry of X-ray Selected Seyfert Galaxies", J.T. Clarke, S. Bowyer, and M. Grewing, Astrophys. J., 305, 167 (1986).


"An Assessment of the Impact of Spacecraft Glow on the Hubble Space Telescope", J. Clarke, in Second Conference on Spacecraft Glow, NASA CP-2391, p.229 (1985).


"An Analysis of Scattered Light in Low Dispersion IUE Spectra", G. Basri, J.T. Clarke, and B. Haisch, Astr. Astrph., 144, 161 (1985).


"Periodic Comet Giacobini-Zinner (1984e)", J.T. Clarke, J. Brodie, and P. McCarthy, IAU Circ. No. 3979 (1984).


"The Evolution of the Optical Spectrum of the Dwarf Nova SS Cygni over One Complete Outburst Cycle", J.T. Clarke, D. Capel, and S. Bowyer, Astrophys. J., 287, 845 (1984).


"Spectrophotometry of the Outburst and Quiescent States of the Dwarf Novae RX And and KT Per", J.T. Clarke and S. Bowyer, Astr. Astrph., 140, 345 (1984).


"IUE High Resolution Spectrophotometry of H Ly α Emission from the Local Interstellar Medium", J.T. Clarke, S. Bowyer, H.J. Fahr, and G. Lay, Astr. Astrph., 139, 389 (1984).


"Optical Observations of the BL Lac Object PKS2155-304 and Implications Regarding the X-ray Absorption Feature at 600-700 eV", S. Bowyer, J. Brodie, J.T. Clarke, and J.P. Henry, Astrophys. J. Lett., 278, L103 (1984).


"X-ray, Optical, and Radio Observations of a Blue Galaxy in the 3C295 Cluster", J.P. Henry, J.T. Clarke, S. Bowyer, and R.J. Lavery, Astrophys. J., 272, 434 (1983).


"Time-resolved spectrophotometry of the emission lines in the galactic X-ray source H2252-035", J.T. Clarke, K.O. Mason, and S. Bowyer, Astrophys. J., 267, 726 (1983).


"Detection of Auroral H Ly α Emission from Uranus", J.T. Clarke, Astrophys. J. Lett., 263, L105 (1982).


"Discovery of a 50 Minute Binary Period and a Likely 22nd Magnitude Optical Counterpart for the X-ray Burster 4U1915-05", F. Walter, S. Bowyer, K. Mason, J. Clarke, J. Halpern, and J. Grindlay, Astrophys. J. Lett., 253, l67 (1982).


"The Far-Ultraviolet Spectra and Geometric Albedos of Jupiter and Saturn", J.T. Clarke, H.W. Moos, and P.D. Feldman, Astrophys. J., 255, 806 (1982).


"4U1915-05", S. Bowyer, J. Clarke, and P. Henry, IAU Circular No. 3632 (1982).


"Ultraviolet Observations of the Io Torus from Earth Orbit Using the IUE Observatory", H.W. Moos and J.T. Clarke, Astrophys. J., 247, 354 (1981).


"IUE Monitoring of the Spatial Distribution of the H Ly α Emission from Jupiter", J.T. Clarke, H.W. Moos, and P.D. Feldman, Astrophys. J. Lett., 245, L127 (1981).


"IUE Detection of Bursts of H Ly α Emission from Saturn", J.T. Clarke, H.W. Moos, S.K. Atreya, and A.L. Lane, Nature, 290, 226 (1981).


"Observations from Earth Orbit and Variability of the Polar Aurora on Jupiter", J.T. Clarke, H.W. Moos, S.K. Atreya, and A.L. Lane, Astrophys. J. Lett., 241, L179 (1980).


"Spatial Imaging of Hydrogen Ly α Emission from Jupiter", J.T. Clarke, H.A. Weaver, P.D. Feldman, H.W. Moos, W.G. Fastie, and C.B. Opal, Astrophys. J., 240, 696 (1980).


"Identification of the UV Nightglow from Venus", P.D. Feldman, H.W. Moos, J.T. Clarke, and A.L. Lane, Nature, 279, 221 (1979).


"Detection of Acetylene in the Saturnian Atmosphere, Using the IUE Satellite", H.W. Moos and J.T. Clarke, Astrophys. J. Lett., 229, L107 (1979).