P44A:
Icarus Worlds: Exploring Hot Exoplanets and Planetary Satellites from Their Interiors to Their Exospheres I


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Session ID#: 61172

Session Description:
One of the most significant recent advances in planetary science has been the discovery of a large and incredibly diverse population of highly irradiated exoplanets, however, the extreme environments these planets exist in can result in dramatic physical processes. For example, highly irradiated rocky planets may experience significant volcanism, local to global surface magma oceans and highly refractory atmospheres. Meanwhile, planets with gaseous envelopes are vulnerable to extreme atmospheric escape due to their intense XUV irradiation, energetic impacts, and interactions with stellar winds and CMEs. This session brings together different communities to discuss atmospheric and geophysical modeling, star-planet interactions, observations of analogous processes on planetary satellites in our own Solar System, field studies, and experimental laboratory work in order to understand the physical processes that govern these extreme worlds and interpret current and upcoming observations.
Primary Convener:  Eric D Lopez, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Conveners:  Prabal Saxena1, Katherine Garcia-Sage1 and Jacob A Richardson2, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States(2)NASA Goddard Space Flight Center, Greenbelt, United States
Primary Liaison:  Eric D Lopez, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Chairs:  Eric D Lopez, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Prabal Saxena, NASA Goddard Space Flight Center, Greenbelt, MD, United States
OSPA Liaison:  Eric D Lopez, NASA Goddard Space Flight Center, Greenbelt, MD, United States

Cross-Listed:
  • A - Atmospheric Sciences
  • EP - Earth and Planetary Surface Processes
  • NS - Near Surface Geophysics
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

0328 Exosphere [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0343 Planetary atmospheres [ATMOSPHERIC COMPOSITION AND STRUCTURE]
6207 Comparative planetology [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
6296 Extra-solar planets [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]

Abstracts Submitted to this Session:

Atmospheric Escape from Exoplanets (Invited) (468152)
Ruth Murray-Clay, University of California Santa Cruz, Astronomy and Astrophysics, Santa Cruz, CA, United States, James Owen, Imperial College London, Physics, London, United Kingdom and John McCann, University of California, Santa Barbara, Physics, Santa Barbara, CA, United States; University of California, Santa Cruz, Astronomy and Astrophysics, Santa Cruz, CA, United States
Helium in the atmosphere of WASP-107b (439908)
Jessica Spake, University of Exeter, Exeter, EX4, United Kingdom
Extending the Definition of Planet Habitability to Include Space Environment Factors (Invited) (355789)
Ofer Cohen1, Alex Glocer2, Jeremy J Drake3, Cecilia Garraffo3, Igor Sokolov4, Jared Micheal Bell5 and Katherine Garcia-Sage6, (1)Lowell Center for Space Science and Technology, University of Massachusetts Lowell, Lowell, United States, (2)NASA/GSFC, Greenbelt, United States, (3)Harvard-Smithsonian Center for Astrophysics, Cambridge, United States, (4)University of Michigan, Climate and Space Sciences and Engineering, Ann Arbor, United States, (5)NASA Goddard Space Flight Center, Code 675, Greenbelt, MD, United States, (6)NASA Goddard Space Flight Center, Greenbelt, MD, United States
Atmospheric Mass Loss Due to Giant Impacts: The Importance of the Thermal Component for H/He Envelopes (453425)
John Brooks Biersteker, Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States and Hilke Schlichting, Massachusetts Institute of Technology, Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States; University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, CA, United States
Observing the transition between gaseous and rocky exoplanets at high irradiation (Invited) (457776)
Diana Dragomir, Massachusetts Institute of Technology, Cambridge, MA, United States
Io as a Model for ‘Icarus-type’ Exoplanets (Invited) (354481)
David A Williams, Arizona State University, Tempe, AZ, United States
Model Atmospheres for Volatile-Rich Hot Rocky Planets (358425)
Roxana Lupu1, Bruce Fegley Jr2, Mark S Marley3 and Katharina Lodders2, (1)Bay Area Environmental Research Institute Moffett Field, Moffett Field, CA, United States, (2)Washington University in St. Louis, St. Louis, MO, United States, (3)NASA Ames Research Center, Moffett Field, CA, United States
Ongoing Variability in Transits of the Disintegrating Rocky Exoplanet K2-22b (398139)
Knicole Colon1, George Zhou2, Avi Shporer3, Karen A Collins2, Allyson Bieryla2, David W Latham2, Nestor Espinoza4, Felipe Murgas5, Petchara Pattarakijwanich6, Supachai Awiphan7 and TECH Collaboration, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)Harvard-Smithsonian Center for Astrophysics, Cambridge, United States, (3)Massachusetts Institute of Technology, Cambridge, United States, (4)Max-Planck-Institut fur Astronomie, Heidelberg, Germany, (5)Instituto de Astrofisica de Canarias, Tenerife, Spain, (6)Mahidol University, Chang Wat Nakhon Pathom, Thailand, (7)National Astronomical Research Institute of Thailand, Chiang Mai, Thailand

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