P030
Space environments of unmagnetized or weakly magnetized solar system bodies and the effects of space weather on these systems

Session ID#: 159136

Session Description:
The ionospheres and magnetospheres of weakly magnetized bodies with substantial atmospheres (e.g. Mars, Venus, Titan, Pluto and comets) are subject to disturbances due to solar activities, interplanetary conditions, or parent magnetospheric environments (e.g. solar flares, coronal mass ejections and solar energetic particles), sharing similarities with their magnetized counterparts but with scientifically important differences. As an integral part of planetary atmospheres, ionospheres are tightly coupled with the neutral atmosphere, exosphere and surrounding plasma environment, possessing rich compositional, density, and temperature structures. The interaction among neutral and charged components affects atmospheric loss, neutral winds, photochemistry, and energy balance within ionospheres. This session invites abstracts concerning remote and in-situ data analysis, modeling studies, comparative studies, instrumentation and mission concepts for weakly magnetized solar system bodies. Topics such as dayside and nightside ionospheric characteristics and variability, ion-neutral coupling, and responses of the ionized and neutral regimes to transient space weather events are especially encouraged.
Index Terms:

5435 Ionospheres [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
6026 Ionospheres [PLANETARY SCIENCES: COMETS AND SMALL BODIES]

Primary Convener:  Christopher M Fowler, West Virginia University, Physics and Astronomy, Morgantown, WV, United States
Conveners:  Beatriz Sanchez-Cano, University of Leicester, Leicester, LE1, United Kingdom, Yingjuan Ma, UCLA, Los Angeles, CA, United States and Xiaohua Fang, University of Colorado at Boulder, Boulder, United States
 
Radial profiles of electron density at comet 67P and during future flyby missions (1042743)
Niklas J. T. Edberg1, Fredrik Leffe Johansson1, Anders I Eriksson1, Erik Vigren1, Pierre Henri2 and Johan De Keyser3, (1)IRF Swedish Institute of Space Physics Uppsala, Uppsala, Sweden, (2)Laboratoire de Physique et Chimie de l’Environnement et de l’Espace, Orléans, France, (3)Belgian Institute for Space Aeronomy, Brussels, Belgium
 
Statistical Mapping of Magnetic Topology at Venus (Invited) (1044249)
Shaosui Xu1, Rudy A Frahm2, Yingjuan Ma3, David L Mitchell4, Janet G Luhmann1 and Moa Persson5, (1)University of California Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (2)Southwest Research Inst, San Antonio, TX, United States, (3)UCLA, Los Angeles, CA, United States, (4)Space Sciences Laboratory, University of California Berkeley, Berkeley, CA, United States, (5)IRAP, CNRS-UPS-CNES, Toulouse, France
 
Local Electron Density Depletions on the Martian Upper Ionosphere Obtained from MARSIS: Comparison with ASPERA-3 and the Connection with Crustal Magnetic Fields (1059069)
Firdevs Duru1, Rudy A Frahm2, Timothy Caplice3, Daniel Hughes4 and Jonathan Pierce4, (1)Coe College, Department of Physics, Cedar Rapids, IA, United States, (2)Southwest Research Inst, San Antonio, TX, United States, (3)University of Florida, Ft Walton Beach, United States, (4)Coe College, Cedar Rapids, United States
 
Determining the physical processes that control thermal electron temperature profiles in the Mars ionosphere. (1059147)
Anna Turner, West Virginia University, Morgantown, WV, United States, Christopher M Fowler, West Virginia University, Physics and Astronomy, Morgantown, WV, United States and Laila Andersson, Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States
 
Observations of ionospheric layers on the nightside during radar blackouts at Mars (1061814)
Beatriz Sanchez-Cano1, Mark Lester2, Simon Joyce2, Dikshita Meggi2, Milan Stephen3, Hermann Opgenoorth4, Roberto Orosei5, Marco Cartacci6, Robert J Lillis7, Davin Larson8 and Ali Rahmati9, (1)University of Leicester, Leicester, LE1, United Kingdom, (2)University of Leicester, Leicester, United Kingdom, (3)University of Leicester, Physics and Astronomy, Leicester, United Kingdom, (4)Umea University, Umea, Sweden, (5)Istituto di Radioastronomia, Istituto Nazionale di Astrofisica, Bologna, Italy, (6)IAPS-INAF, Rome, Italy, (7)Space Sciences Laboratory, University of California Berkeley, Berkeley, United States, (8)University of California Berkeley, Berkeley, CA, United States, (9)University of California Berkeley, Space Sciences Laboratory, Berkeley, CA, United States
 
Characterizing Energy Spectra of Precipitating Solar Wind H+ and H- in the Martian Atmosphere (1062513)
Sarah Henderson, University of Iowa, Iowa City, IA, United States, Jasper S Halekas, University of Iowa, Department of Physics and Astronomy, Iowa City, IA, United States, David L Mitchell, Space Sciences Laboratory, University of California Berkeley, Berkeley, CA, United States and Christian Xavier Mazelle, IRAP, University of Toulouse, CNRS, UPS, CNES, Toulouse, France
 
Fourier Analysis of Magnetic Fields in the Ionosphere of Mars (1062998)
Thomas Cravens1, Oliver Q Hamil2, Antonio Robin Renzaglia2, Stephen A Ledvina3 and Stephanie K Howard4, (1)University of Kansas, Physics and Astronomy, Lawrence, KS, United States, (2)University of Kansas, Lawrence, KS, United States, (3)Univ California Berkeley, Berkeley, CA, United States, (4)NASA Goddard Space Flight Center, Greenbelt, United States
 
Hybrid simulations of small and meso-scale magnetic structures in the Martian ionosphere. (1063703)
Oliver Q Hamil1, Thomas Cravens2, Stephen A Ledvina3 and Antonio Robin Renzaglia1, (1)University of Kansas, Lawrence, KS, United States, (2)University of Kansas, Physics and Astronomy, Lawrence, KS, United States, (3)Univ California Berkeley, Berkeley, CA, United States
 
A Study of Temporal Variability in Mars Discrete Aurora as Observed by EMM EMUS. (1064800)
Shouq Altaffaq1, Robert J Lillis2, Matthew O. Fillingim3, Krishnaprasad Chirakkil4, Justin Deighan4, Michael Chaffin4, Sonal Jain4, Susarla Raghuram5, Gregory M Holsclaw6, David Brain4, Hessa Rashid Almatroushi7, Scott England8, Fatma Hussain Lootah9, Hoor Abdelrahman AlMazmi10, Jasper S Halekas11, Robin Ramstad12, Jared R Espley13, Jacob Gruesbeck14 and Shannon Curry2, (1)Khalifa University, Abu Dhabi, United Arab Emirates, (2)Space Sciences Laboratory, University of California Berkeley, Berkeley, United States, (3)University of California, Berkeley, CA, United States, (4)Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, United States, (5)Imperial College London, London, United Kingdom, (6)University of Colorado Boulder, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (7)Mohammed Bin Rashid Space Center, Al Khawaneej, United Arab Emirates, (8)Virginia Polytechnic Institute and State University, Aerospace and Ocean Engineering, Blacksburg, VA, United States, (9)Mohammed Bin Rashid Space Centre, Al Khawaneej, United Arab Emirates, (10)UAE Space Agency, Abu Dhabi, United Arab Emirates, (11)University of Iowa, Department of Physics and Astronomy, Iowa City, IA, United States, (12)Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States, (13)Goddard Space Flight Center, Greenbelt, United States, (14)University of Maryland College Park, College Park, United States
 
Solar Flare Effects on Ions at Mars: A Comparison of MAVEN NGIMS Observations with MGITM Model Outputs (1073896)
Alexandra G Cramer1, Paul Withers1,2, Meredith K Elrod3,4 and David J Pawlowski5, (1)Boston University, Astronomy Department, Boston, United States, (2)Center for Space Physics, Boston University, Boston, United States, (3)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (4)University of Maryland College Park, Astronomy Department, College Park, United States, (5)Eastern Michigan University, Physics and Astronomy Department, Ypsilanti, MI, United States
 
Furthering Modeling of Mars’ Nightside Ionosphere with an Improved Empirical Model of Electron Precipitation (1075749)
Melissa Marquette, UC Berkeley/Space Sciences Laboratory, Berkeley, United States, Robert J Lillis, Space Sciences Laboratory, University of California Berkeley, Berkeley, United States, David J Pawlowski, Eastern Michigan University, Physics and Astronomy Department, Ypsilanti, MI, United States, Jean-Yves Chaufray, LATMOS/IPSL, UVSQ Université Paris-Saclay, Sorbonne Université, Guyancourt, France and Yingjuan Ma, UCLA, Los Angeles, CA, United States
 
Determination of bulk plasma parameters in Rosetta Ion Composition Analyzer data (1085615)
Hayley Nicole Williamson, Hans Nilsson, Gabriella Stenberg Wieser, Sofia Bergman and Anja Moeslinger, IRF Swedish Institute of Space Physics Kiruna, Kiruna, Sweden
 
A Global Investigation of IMF-Crustal Field Interactions at Mars Using MAVEN Data (1087916)
Charles Bowers1, Gina A DiBraccio2, James A Slavin3, Jacob Gruesbeck4,5, Tristan Weber2,6, Shaosui Xu7 and Yuki Harada8, (1)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (2)NASA Goddard Space Flight Center, Greenbelt, United States, (3)University of Michigan Ann Arbor, Department of Climate and Space Sciences and Engineering, Ann Arbor, MI, United States, (4)University of Maryland College Park, College Park, United States, (5)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (6)Howard University, Physics & Astronomy, Washington, MD, United States, (7)Space Sciences Laboratory, University of California Berkeley, Berkeley, United States, (8)Kyoto University, Kyoto, Japan
 
Crustal Field Inclusion of the Dawn-Dusk Asymmetry of the Mars Magnetotail Current Sheet (1097088)
Nii-Boi Quartey and Michael Warren Liemohn, University of Michigan, Climate and Space Sciences and Engineering, Ann Arbor, United States
 
MHD Study of Kelvin-Helmholtz Instability at Mars (1100935)
Wenyi Sun, Yingjuan Ma and Christopher T Russell, University of California Los Angeles, Los Angeles, CA, United States
 
Solar Rotation Effects in Earth's and Mars' Thermospheric Densities as Revealed by Concurrent MAVEN, Swarm-C, and GOES Observations (1107167)
Federico Gasperini1, Joe Hughes1 and Edward Thiemann2, (1)Atmospheric and Space Technology Research Associates, LLC, Boulder, CO, United States, (2)Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, United States
 
The observations of FUV discrete aurora on Mars by the EMM EMUS:characterizing the spectral properties (1116519)
Sonal Jain1, Robert J Lillis2, Justin Deighan1, Michael Chaffin1, Krishnaprasad Chirakkil1, Greg Holsclaw1, Matthew O. Fillingim3, Hessa Rashid Almatroushi4, J. Scott Evans5, Scott England6, Fatma Hussain Lootah7 and Hoor Abdelrahman AlMazmi8, (1)Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, United States, (2)Space Sciences Laboratory, University of California Berkeley, Berkeley, United States, (3)University of California, Berkeley, CA, United States, (4)Mohammed Bin Rashid Space Center, Al Khawaneej, United Arab Emirates, (5)Computational Physics, Inc., Springfield, VA, United States, (6)Virginia Polytechnic Institute and State University, Aerospace and Ocean Engineering, Blacksburg, VA, United States, (7)Mohammed Bin Rashid Space Centre, Al Khawaneej, United Arab Emirates, (8)UAE Space Agency, Abu Dhabi, United Arab Emirates
 
A Statistical Study of the Martian Ionopause and Comparisons with Venus (1117259)
Zachary Girazian1, Jasper S Halekas1 and Shaosui Xu2, (1)University of Iowa, Department of Physics and Astronomy, Iowa City, IA, United States, (2)Space Sciences Laboratory, University of California Berkeley, Berkeley, United States
 
MAVEN Observations of Coherent Electric Field Structures in the Martian Magnetosheath (1117716)
Amar Kakad1, Bharati A Kakad1, Harikrishnan Aravindakshan1 and Ioannis Kourakis2,3, (1)Indian Institute of Geomagnetism, New Panvel, Navi Mumbai, India, (2)Space and Planetary Science Center, Khalifa University, Abu Dhabi, United Arab Emirates, (3)Department of Mathematics, College of Arts and Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
 
Induced Magnetic Field Distribution and Variability at Mars: MHD Prediction and Comparison with MAVEN Observations (1119667)
Xiaohua Fang, Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, United States, Yingjuan Ma, University of California Los Angeles, Los Angeles, CA, United States, Yaxue Dong, University of Colorado Boulder, Boulder, CO, UNITED STATES, Janet G Luhmann, University of California Berkeley, Space Sciences Laboratory, Berkeley, CA, United States and Shannon Curry, Space Sciences Laboratory, University of California Berkeley, Berkeley, United States
 
Variations in the Chemical Composition of the Ionosphere of Mars Over a Solar Rotation Period (1121278)
Adrian Acosta, University of Iowa, Iowa City, IA, United States and Zachary Girazian, Department of Physics and Astronomy, University of Iowa, Iowa City, IA, United States
 
Plasma-Neutral Coupling via Large-Scale Migrating Tides in the Mars Ionosphere-Thermosphere (1129266)
Marcin Pilinski, Laila Andersson and Scott Thaller, Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States
 
Changes in the Martian Magnetosphere due to the Radial Orientation of the Interplanetary Magnetic Field (IMF) (1136934)
Dev Raj Joshi, The University of Iowa, Department of Physics and Astronomy, Iowa City, United States, Jasper S Halekas, University of Iowa, Department of Physics and Astronomy, Iowa City, IA, United States, James P McFadden, Univ California Berkeley, Berkeley, CA, United States and Jared R Espley, Goddard Space Flight Center, Greenbelt, United States
 
What Controls the Martian Top-Side Ionosphere? An Analysis of Balance in Solar Wind Induced Magnetic Pressure and Cold Thermal Ionospheric Pressure at Mars (1137156)
Skylar R Shaver, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, Laila Andersson, Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States, Scott Thaller, University of Colorado Boulder, Boulder, United States and Robin Ramstad, Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States
 
Solar Wind- Mars Interaction Under Different Interplanetary Magnetic Field (IMF) Orientations (1138872)
Yingjuan Ma1, Jasper S Halekas2, Christopher M Fowler3, Xiaohua Fang4, Jared R Espley5, David Brain6, Andrew F Nagy7 and Christopher T Russell1, (1)University of California Los Angeles, Los Angeles, CA, United States, (2)University of Iowa, Department of Physics and Astronomy, Iowa City, IA, United States, (3)West Virginia University, Physics and Astronomy, Morgantown, WV, United States, (4)University of Colorado at Boulder, Boulder, United States, (5)Goddard Space Flight Center, Greenbelt, United States, (6)Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States, (7)University of Michigan Ann Arbor, Ann Arbor, MI, United States
 
Electric currents of the Venusian induced magnetosphere - Differences and similarities to Mars (1139475)
Robin Ramstad1, Josephine Johnson2, Yaxue Dong3, Yoshifumi Futaana4, Tielong Zhang5 and David Brain1, (1)Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States, (2)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (3)University of Colorado Boulder, Boulder, CO, UNITED STATES, (4)IRF Swedish Institute of Space Physics Kiruna, Kiruna, Sweden, (5)Space Research Institute, Graz, Austria
 
Directionality of the Martian Surface Radiation and Derivation of the Upward Albedo Radiation (1147050)
Salman Khaksarighiri1, Jingnan Guo2, Robert F Wimmer-Schweingruber3, Don Hassler4, Bent Ehresmann5, Cary Zeitlin6, Sven Loeffler7, Daniel Matthiae8, Thomas Berger9, Gunther Reitz8 and Fred J Calef III10, (1)University of Kiel, Institute of Experimental and Applied Physics, Kiel, Germany, (2)University of Science and Technology of China, Hefei, China, (3)University of Kiel, Institute for Experimental and Applied Physics, Kiel, Germany, (4)Southwest Research Institute, Boulder, CO, United States, (5)Southwest Research Institute, Oakland, CA, United States, (6)Leidos Innovations Corporation, Houston, United States, (7)University of Kiel, Kiel, Germany, (8)German Aerospace Center DLR Cologne, Cologne, Germany, (9)German Aerospace Center DLR Cologne, Institute for Flight Medicine, Cologne, Germany, (10)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
 
Mars Express Pickup Ion Observations as an Interplanetary Magnetic Field Proxy (1151333)
Matt Davis, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, Yaxue Dong, University of Colorado Boulder, Boulder, CO, UNITED STATES, Robin Ramstad, Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States, Mats Holmström, IRF Swedish Institute of Space Physics Kiruna, Kiruna, Sweden and Jared R Espley, Goddard Space Flight Center, Greenbelt, United States
 
Langmuir Waves in the Venusian Electron Foreshock: Observations from Parker Solar Probe's Five Venus Flybys (1161784)
Lilias Claire Gasque1, Trevor Bowen2, Stuart D Bale3, Orlando Romeo4, Chadi S Salem2 and Marc Pulupa5, (1)University of California, Berkeley, Physics, Berkeley, United States, (2)University of California Berkeley, Berkeley, CA, United States, (3)University of California Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (4)University of California Berkeley, Department of Earth and Planetary Sciences, Berkeley, United States, (5)Space Sciences Laboratory, University of California Berkeley, Berkeley, CA, United States
 
Ionospheric depletions at Mars detected by MAVEN (1162376)
Leonardo Regoli1, Christopher M Fowler2, Matina Gkioulidou3, Praveen Basuvaraj4 and Frantisek Nemec4, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (2)West Virginia University, Physics and Astronomy, Morgantown, WV, United States, (3)JHU/APL, Laurel, MD, United States, (4)Charles University, Prague, Czech Republic
 
Unexpected spectral and morphological variations in discrete aurora emissions at Mars (1172718)
Nicholas McCord Schneider1, Emma Patricia Lieb2, Sonal Jain3, Jean-Claude M. C. Gerard4, Lauriane Soret5, Sumedha Gupta6, Majd Mayyasi7 and Justin Deighan3, (1)Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, United States, (2)University of Colorado at Boulder, Boulder, United States, (3)Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, United States, (4)Université de Liège, LPAP - STAR Institute, Liege, Belgium, (5)Villefranche-Surmer, France, (6)National Physical Laboratory, New Delhi, India, (7)Boston University, Center for Space Physics, Boston, MA, United States
 
Diverting Space Weather over a Weakly-Magnetized Planet: MAVEN Observations of SEP Electron Depletion at Mars (1180875)
Rebecca Jolitz1, Ali Rahmati2, Shaosui Xu3, Tristan David Weber4, Christina O Lee5, David Mitchell6, Davin Larson7, Robert J Lillis6, David Brain8 and Bruce M Jakosky9, (1)University of Colorado at Boulder, Laboratory for Atmospheric and Space Physics, Boulder, United States, (2)University of California Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, (3)University of Michigan Ann Arbor, Ann Arbor, United States, (4)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (5)Space Sciences Laboratory, University of California at Berkeley, Berkeley, United States, (6)Space Sciences Laboratory, University of California Berkeley, Berkeley, United States, (7)University of California Berkeley, Berkeley, CA, United States, (8)Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States, (9)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States
 
Hybrid Simulations of the Martian Solar Wind Interaction (1185000)
Stephen A Ledvina, University of California Berkeley, Berkeley, United States and Stephen H Brecht, Bay Area Research Corp, Orinda, CA, United States
 
Hybrid Simulations of the Solar Wind Interaction with Venus (1186575)
Stephen A Ledvina, University of California Berkeley, Berkeley, United States, Stephen H Brecht, Bay Area Research Corp, Orinda, CA, United States and Stephen W Bougher, Climate and Space Sciences and Engineering Department, Ann Arbor, MI, United States
 
Simulations of Titan Interacting with Saturn's Magnetosphere (1197141)
Stephen H Brecht, Bay Area Research Corporation, Orinda, United States and Stephen A Ledvina, University of California Berkeley, Berkeley, United States
 
Observation of locally excited proton cyclotron waves and their effect on ion velocity distribution at Mars (1201079)
Chao Gai, Shengyi Ye, Kaijun Liu and Siyuan Wu, Southern University of Science and Technology, Department of Earth and Space Sciences, Shenzhen, China
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