000007535 001__ 7535
000007535 005__ 20250204121953.0
000007535 037__ $$aSEMIN-2025-0024
000007535 100__ $$aHakim, Kaustubh
000007535 245__ $$aMagma-Atmosphere Coupling in Hot Sub-Neptunes
000007535 260__ $$c2024
000007535 269__ $$c2024-04-23
000007535 520__ $$aExoplanet science is a new, exponentially growing field of astronomy challenging the theoretical understanding of planets. Planet occurrence studies focusing on the size distribution of planets have revealed three major classes of exoplanets, gas giants, gas dwarfs (sub-Neptunes), rocky exoplanets (super-Earths and smaller planets). Unlike gas giants, super-Earths and sub-Neptunes are dominated by their rocky interiors. This decade is witnessing a major shift from the atmospheric characterisation of gas giant exoplanets to their smaller counterparts. In the absence of direct measurements of deep interiors, the following three astronomical windows reveal rocky interiors. Mass-radius measurements inform about bulk planet composition; atmospheric characterisation reveals atmospheric composition and host-star refractory elemental abundances give potential estimates of interior composition. While the observations of atmospheres of sub-Neptunes and rocky exoplanets keep growing, the understanding of chemical diversity in planetary interiors and interior-atmosphere interactions is more vital than ever. In this overview talk, I will focus on rocky exoplanet interiors and evolution from the perspective of chemical and physical diversity. The inventory of refractory elements largely determines the interior composition, mineralogy and structure. The inventory of volatile elements further influences the interior evolution and atmospheric chemistry. I will discuss the role of exoplanet interiors in the composition of atmospheres, including processes such as geochemical cycling and outgassing. Going forward, we will need to develop a thorough understanding of planetary mineralogy, material properties and processes that occur outside the physical and chemical realms of Earth and planetary bodies in the Solar System with the help of theoretical models and laboratory experiments. 
000007535 536__ $$aFED-tWIN/$$cSTELLA/$$fPrf-2021-022
000007535 594__ $$aNO
000007535 773__ $$tARIES, Nainital, India
000007535 8560_ $$fkaustubh.hakim@ksb-orb.be
000007535 980__ $$aSEMIN