P048
Unveiling the Atmosphere–Interior Connection in Planets: Integrating Observations, Simulations, and Experiments
Session ID#: 252476
Session Description:
Recent and upcoming space missions are revolutionizing our view of exoplanets, delivering detailed data on both atmospheric compositions and internal structures. Yet, the interface between a planet’s atmosphere and its deep interior remains a critical blind spot. How do atmospheric observations inform interior composition at extreme pressures? What governs the exchange of material and energy across this boundary? And how do these interactions shape planetary evolution over time? This session explores the coupled nature of planetary atmospheres and interiors, focusing on the physical and chemical processes at their interface. We invite contributions that integrate insights from observations, laboratory experiments, and modeling—from high-pressure physics to spectroscopic analysis and thermal evolution. Studies that bridge disciplines to illuminate the links between atmospheric signatures, interior dynamics, and mass–radius relationships are especially encouraged. Together, we aim to advance a holistic understanding of planetary structure across a diversity of worlds.
Index Terms:
3924 High-pressure behavior [MINERAL PHYSICS]
5210 Planetary atmospheres, clouds, and hazes [PLANETARY SCIENCES: ASTROBIOLOGY]
6293 Uranus [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
6296 Extra-solar planets [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
Primary Convener: Taehyun Kim, Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States
Conveners: Luis Welbanks, Arizona State University, School of Earth and Space Exploration, Tempe, United States and Hilke Schlichting, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, United States
Student/Early Career Convener: Aster Taylor, University of Michigan Ann Arbor, Department of Astronomy, Ann Arbor, MI, United States
The Nature of sub-Neptune Cores: Differentiation is the Exception Not the Rule (Invited) (1874870)
Edward D Young, University of California Los Angeles, Los Angeles, United States, Hilke Schlichting, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, United States and James Rogers, University of Cambridge, Institute of Astronomy, Cambridge, United Kingdom
Observable signatures of magma-atmosphere interactions in sub-Neptunes (Invited) (1936777)
Matthew Nixon1, Jegug Ih2, Sander Somers1, Eliza Kempton3, Arjun Savel1, Edward D Young4, Hilke Schlichting4, Tim Lichtenberg5, Luis Welbanks6, Anjali Piette7, Nicholas Wogan8 and Will Misener9, (1)University of Maryland College Park, College Park, United States, (2)Space Telescope Science Institute, Baltimore, United States, (3)Grinnell College, Grinnell, IA, United States, (4)University of California Los Angeles, Los Angeles, United States, (5)University of Oxford, Atmospheric, Oceanic and Planetary Physics, Oxford, United Kingdom, (6)Arizona State University, School of Earth and Space Exploration, Tempe, United States, (7)Carnegie Institution for Science, Earth & Planets Laboratory, Washington, DC, United States, (8)NASA Ames Research Center, Moffett Field, United States, (9)Carnegie Institution for Science Washington, Washington, United States
Linking rocky exoplanetary atmospheres and interiors through meteorite outgassing experiments (1962493)
Nathan McGregor1, Margaret Thompson2, Myriam Telus1 and Laura Schaefer3, (1)University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, United States, (2)Carnegie Institution for Science, Earth and Planets Laboratory, Washington, United States, (3)Stanford University, Department of Earth & Planetary Sciences, Stanford, United States
Modeling Core-Induction Responses and Their Impact on Atmospheric Escape from Rocky Exoplanets (1975066)
Laura Chin, Boston University, Astronomy, Boston, United States, Chuanfei Dong, Boston University, Boston, United States and Yuxi Chen, University of Michigan, Climate and Space Sciences and Engineering, Ann Arbor, United States
Impact of increasing H2O concentration during conversion of a hydrogen-rich sub-Neptune to a water-rich sub-Neptune (1983481)
Taehyun Kim1, Allona Vazan2, Stella Chariton3, Vitali Prakapenka3, Young Jay Ryu3, Shize Yang4 and Sang-Heon Dan Shim1, (1)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, (2)Open University of Israel, Raanana, Israel, (3)The University of Chicago, Center for Advanced Radiation Sources, Chicago, United States, (4)Yale University, Aberration-Corrected Electron Microscopy Core, New Haven, United States
Forming Wet Planets from Dry Building Blocks: High Pressure Magma-Hydrogen Reactions (Invited) (1995828)
Allona Vazan, Open University of Israel, Raanana, Israel, Harrison Horn, Arizona State University, Tempe, AZ, United States and Sang-Heon Dan Shim, Arizona State University, School of Earth and Space Exploration, Tempe, United States
