 CURRENT STUDENTS Catherine Elder (PTYS) Tiffany Kataria (PTYS) FORMER STUDENTS Michael Bland, 2008 (PTYS) David Choi, 2009 (PTYS) Curtis Cooper, 2006 (PTYS) Nikole Lewis, 2012 (PTYS) Yuan Lian, 2009 (PTYS) Kunio Sayanagi, 2007 (Physics) CURRENT POSTDOC(S) Michael Sussman FORMER POSTDOC(S) Mitri Giuseppe, 2004-2006 David Choi, 2009-2011 Emily Rauscher, 2010-2012 | Adam Showman ProfessorDynamics and evolution of planetary atmospheres Ph.D., 1999, California Institute of Technology Kuiper #430 621-4021  Years with LPL: 2001 to present RESEARCH INTERESTS Dr. Showman investigates the dynamics and evolution of planetary atmospheres and interiors. His atmospheric research currently focuses on giant planets---Jupiter, Saturn, Uranus, Neptune, and the hundreds of giant planets that are being detected around other stars. In addition to the active research areas described above, Dr. Showman also has a long-term interest in the atmospheric dynamics, climate, interior state, and geophysics of the terrestrial planets Earth, Mars, and Venus. A new area of interest is the atmospheric structure and dynamnics of brown dwarfs. More about Dr. Showman CV for Dr. Showman (PDF) CURRENT GRANTS
FORMER SPACECRAFT INVOLVEMENT Science Definition Team for NASA Jupiter System Observer (JSO) mission concept, 2007; Science Definition Team for Jupiter Europa Orbiter (JEO), 2008-2010. SELECTED PUBLICATIONS Hirata, N., H. Miyamoto, and A.P. Showman 2012. Deposits of the E ring materials on saturnian satellites constrain cryovolcanic activities of Enceladus. Showman, A.P. and Y. Kaspi 2012. Atmospheric circulation of brown dwarfs and directly imaged giant planets. Choi, D.S., A.P. Showman, A.R. Vasavada, and A.A. Simon-Miller 2012. Jupiter's equatorial meteorology from Cassini. Kataria, T., A.P. Showman, N.K. Lewis, J.J. Fortney, M.S. Marley, and R. Freedman 2012. Three-dimensional atmospheric circulation of hot Jupiters on highly eccentric orbits. Liu, B. and A.P. Showman 2012. Atmospheric circulation of hot Jupiters: insensitivity to initial conditions. Showman, A. P., et al. Doppler Signatures of the Atmospheric Circulation on Hot Jupiters 2013ApJ...762...24S Buenzli, E., et al. Vertical Atmospheric Structure in a Variable Brown Dwarf: Pressure-dependent Phase Shifts in Simultaneous Hubble Space Telescope-Spitzer Light Curves 2012ApJ...760L..31B Kaspi, Y., A.P. Showman, W.B. Hubbard, R. Helled, and O. Aharonson 2012. Atmospheric confinement of jet streams on Uranus and Neptune. Knutson, H. A., et al. 3.6 and 4.5 μm Phase Curves and Evidence for Non-equilibrium Chemistry in the Atmosphere of Extrasolar Planet HD 189733b 2012ApJ...754...22K Crossfield, I. J. M., et al. Spitzer/MIPS 24 μm Observations of HD 209458b: Three Eclipses, Two and a Half Transits, and a Phase Curve Corrupted by Instrumental Sensitivity Variations 2012ApJ...752...81C Jackson, B. K., et al. The EVIL-MC Model for Ellipsoidal Variations of Planet-hosting Stars and Applications to the HAT-P-7 System 2012ApJ...751..112J Han, L., Tobie, G., Showman, A. P. The impact of a weak south pole on thermal convection in Enceladus' ice shell 2012Icar..218..320H Todorov, K. O., et al. Warm Spitzer Observations of Three Hot Exoplanets: XO-4b, HAT-P-6b, and HAT-P-8b 2012ApJ...746..111T Choi, D. S., Showman, A. P. Power spectral analysis of Jupiter's clouds and kinetic energy from Cassini 2011Icar..216..597C Showman, A. P., Polvani, L. M. Equatorial Superrotation on Tidally Locked Exoplanets 2011ApJ...738...71S Fletcher, L. N., et al. Saturn's tropospheric composition and clouds from Cassini/VIMS 4.6-5.1 μm nightside spectroscopy 2011Icar..214..510F Moses, J. I., et al. Disequilibrium Carbon, Oxygen, and Nitrogen Chemistry in the Atmospheres of HD 189733b and HD 209458b 2011ApJ...737...15M Han, L., Showman, A. P. Coupled convection and tidal dissipation in Europa’s ice shell using non-Newtonian grain-size-sensitive (GSS) creep rheology 2011Icar..212..262H Showman, A. P., Kaspi, Y., Flierl, G. R. Scaling laws for convection and jet speeds in the giant planets 2011Icar..211.1258S Beerer, I. M., et al. Secondary Eclipse Photometry of WASP-4b with Warm Spitzer 2011ApJ...727...23B Deming, D., et al. Warm Spitzer Photometry of the Transiting Exoplanets CoRoT-1 and CoRoT-2 at Secondary Eclipse 2011ApJ...726...95D Showman, A. P., Polvani, L. M. The Matsuno-Gill Model and Equatorial Superrotation 2010AGUFM.A33H..06S Bland, M. T., McKinnon, W. B., Showman, A. P. The effects of strain localization on the formation of Ganymede’s grooved terrain 2010Icar..210..396B Mitri, G., et al. Mountains on Titan: Modeling and observations 2010JGRE..11510002M Lewis, N. K., et al. Atmospheric Circulation of Eccentric Hot Neptune GJ436b 2010ApJ...720..344L Han, L., Showman, A. P. Coupled convection and tidal dissipation in Europa’s ice shell 2010Icar..207..834H Showman, A.P., J.Y-K. Cho, and K. Menou 2010. Atmospheric circulation of extrasolar planets. Invited review article for the book Exoplanets (S. Seager, Ed.), Univ. Arizona Press, pp. 471-516. Lian, Y., Showman, A. P. Generation of equatorial jets by large-scale latent heating on the giant planets 2010Icar..207..373L Choi, D. S., Showman, A. P., Vasavada, A. R. The evolving flow of Jupiter’s White Ovals and adjacent cyclones 2010Icar..207..359C Penny, A. B., Showman, A. P., Choi, D. S. Suppression of the Rhines effect and the location of vortices on Saturn 2010JGRE..11502001P Fortney, J. J., et al. Transmission Spectra of Three-Dimensional Hot Jupiter Model Atmospheres 2010ApJ...709.1396F Kaspi, Y., et al. Gravitational signature of Jupiter's internal dynamics 2010GeoRL..3701204K Barr, A.C. and A.P. Showman 2009. Heat transfer in Europa's icy shell. In Europa (R.T. Pappalardo, W.B. McKinnon, and K. Khurana, Eds.), Univ. Arizona Press, pp. 405-430. Del Genio, A.D., R.K. Achterberg, K.H. Baines, F.M. Flasar, P.L. Read, A. Sanchez-Lavega, and A.P. Showman 2009. Saturn atmospheric structure and dynamics. In Saturn from Cassini-Huygens (M.K. Dougherty, L.W. Esposito, and S.M. Krimigis, Eds.), Springer, New York. pp. 113-160. Baines, K. H., et al. Saturn's north polar cyclone and hexagon at depth revealed by Cassini/VIMS 2009P&SS...57.1671B Mousis, O., et al. Elemental abundances and minimum mass of heavy elements in the envelope of HD 189733b 2009A&A...507.1671M Barnes, J. W., et al. Detecting the Wind-Driven Shapes of Extrasolar Giant Planets from Transit Photometry 2009ApJ...706..877B Knutson, H. A., et al. The 8 μm Phase Variation of the Hot Saturn HD 149026b 2009ApJ...703..769K Showman, A.P. 2009. Windy clues to Saturn's spin. Nature 460, 582-583. Kaspi, Y., Flierl, G. R., Showman, A. P. The deep wind structure of the giant planets: Results from an anelastic general circulation model 2009Icar..202..525K Showman, A. P., et al. Atmospheric Circulation of Hot Jupiters: Coupled Radiative-Dynamical General Circulation Model Simulations of HD 189733b and HD 209458b 2009ApJ...699..564S Choi, D. S., Showman, A. P., Brown, R. H. Cloud features and zonal wind measurements of Saturn's atmosphere as observed by Cassini/VIMS 2009JGRE..11404007C Bland, M. T., Showman, A. P., Tobie, G. The orbital thermal evolution and global expansion of Ganymede 2009Icar..200..207B Knutson, H. A., et al. Multiwavelength Constraints on the Day-Night Circulation Patterns of HD 189733b 2009ApJ...690..822K Bland, M. T., Showman, A. P., Tobie, G. The production of Ganymede's magnetic field 2008Icar..198..384B Mitri, G., et al. Resurfacing of Titan by ammonia-water cryomagma 2008Icar..196..216M Showman, A. P., et al. Atmospheric Circulation of Hot Jupiters: Three-dimensional Circulation Models of HD 209458b and HD 189733b with Simplified Forcing 2008ApJ...682..559S Mitri, G., Showman, A. P. A model for the temperature-dependence of tidal dissipation in convective plumes on icy satellites: Implications for Europa and Enceladus 2008Icar..195..758M Lian, Y., Showman, A. P. Deep jets on gas-giant planets 2008Icar..194..597L Showman, A. P. Extrasolar planets: A whiff of methane 2008Natur.452Q.296S Mitri, G., Showman, A. P. Thermal convection in ice-I shells of Titan and Enceladus 2008Icar..193..387M Han, L., Showman, A. P. Implications of shear heating and fracture zones for ridge formation on Europa 2008GeoRL..3503202H Sayanagi, K. M., Showman, A. P., Dowling, T. E. The Emergence of Multiple Robust Zonal Jets from Freely Evolving, Three-Dimensional Stratified Geostrophic Turbulence with Applications to Jupiter 2008JAtS...65.3947S Bland, M. T., Beyer, R. A., Showman, A. P. Unstable extension of Enceladus' lithosphere 2007Icar..192...92B Bland, M. T., Showman, A. P. The formation of Ganymede's grooved terrain: Numerical modeling of extensional necking instabilities 2007Icar..189..439B Knutson, H. A.,et al. A map of the day-night contrast of the extrasolar planet HD 189733b 2007Natur.447..183K Choi, D. S., et al. Velocity and vorticity measurements of Jupiter's Great Red Spot using automated cloud feature tracking 2007Icar..188...35C Sayanagi, K. M., Showman, A. P. Effects of a large convective storm on Saturn's equatorial jet 2007Icar..187..520S Mitri, G., et al. Hydrocarbon lakes on Titan 2007Icar..186..385M Dowling, T.E. and A.P. Showman 2006. Earth as a Planet: Atmosphere and Oceans. In Encyclopedia of the Solar System, 2nd Ed., (L-A. McFadden, P. Weissman, and T. Johnson, Eds), Academic Press. Showman, A. P. Numerical Simulations of Forced Shallow-Water Turbulence: Effects of Moist Convection on the Large-Scale Circulation of Jupiter and Saturn 2007JAtS...64.3132S Fortney, J. J., et al. The Influence of Atmospheric Dynamics on the Infrared Spectra and Light Curves of Hot Jupiters 2006ApJ...652..746F Cooper, C. S., Showman, A. P. Dynamics and Disequilibrium Carbon Chemistry in Hot Jupiter Atmospheres, with Application to HD 209458b 2006ApJ...649.1048C Williams, P. K. G., et al.Resolving the Surfaces of Extrasolar Planets with Secondary Eclipse Light Curves 2006ApJ...649.1020W Showman, A. P., Gierasch, P. J., Lian, Y. Deep zonal winds can result from shallow driving in a giant-planet atmosphere 2006Icar..182..513S Dowling, T. E., et al. The EPIC atmospheric model with an isentropic/terrain-following hybrid vertical coordinate 2006Icar..182..259D Miyamoto, H., et al. Mapping the structure and depth of lava tubes using ground penetrating radar 2005GeoRL..3221316M Mitri, G., Showman, A. P. Convective conductive transitions and sensitivity of a convecting ice shell to perturbations in heat flux and tidal-heating rate: Implications for Europa 2005Icar..177..447M Showman, A. P., Han, L. Effects of plasticity on convection in an ice shell: Implications for Europa 2005Icar..177..425S Miyamoto, H., et al. Putative ice flows on Europa: Geometric patterns and relation to topography collectively constrain material properties and effusion rates 2005Icar..177..413M Han, L., Showman, A. P. Thermo-compositional convection in Europa's icy shell with salinity 2005GeoRL..3220201H Vasavada, A. R., Showman, A. P. Jovian atmospheric dynamics: an update after Galileo and Cassini 2005RPPh...68.1935V Cooper, C. S., Showman, A. P. Dynamic Meteorology at the Photosphere of HD 209458b 2005ApJ...629L..45C Showman, A. P., de Pater, I. Dynamical implications of Jupiter's tropospheric ammonia abundance 2005Icar..174..192S Showman, A. P., Mosqueira, I., Head, J. W. On the resurfacing of Ganymede by liquid water volcanism 2004Icar..172..625S Melosh, H. J., et al. The temperature of Europa's subsurface water ocean 2004Icar..168..498M Ingersoll, A.P., T.E. Dowling, P.J. Gierasch, G.S. Orton, P.L. Read, A. Sanchez-Lavega, A.P. Showman, A.A. Simon-Miller, and A.R. Vasavada 2004. Dynamics of Jupiter's atmosphere. In Jupiter: the Planet, Satellites, and Magnetosphere. Cambridge Univ. Press, pp. 105-128. Showman, A. P., Han, L. Numerical simulations of convection in Europa's ice shell: Implications for surface features 2004JGRE..10901010S Showman, A.P. Planetary atmospheres: the giant planets and their satellites. in The Encyclopedia of Atmospheric Science, Academic Press, pp. 1730-1745. Showman, A. P., Guillot, T. Atmospheric circulation and tides of "51 Pegasus b-like" planets 2002A&A...385..166S Guillot, T., Showman, A. P. Evolution of "51 Pegasus b-like" planets 2002A&A...385..156G Showman, A. P. Hydrogen Halides on Jupiter and Saturn 2001Icar..152..140S Stratman, P. W., et al. EPIC Simulations of Bright Companions to Neptune's Great Dark Spots 2001Icar..151..275S Showman, A. P., Dowling, T. E. Nonlinear Simulations of Jupiter's 5-Micron Hot Spots 2000Sci...289.1737S Showman, A. P., Malhotra, R. The Galilean satellites. 1999Sci...296...77S Showman, A. P., Ingersoll, A. P. Interpretation of Galileo Probe Data and Implications for Jupiter's Dry Downdrafts 1998Icar..132..205S Showman, A. P., Stevenson, D. J., Malhotra, R. Coupled Orbital and Thermal Evolution of Ganymede 1997Icar..129..367S Showman, A. P., Malhotra, R. Tidal Evolution into the Laplace Resonance and the Resurfacing of Ganymede 1997Icar..127...93S |
