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Microphysical Insights into Protoplanetary Disks and Exoplanet Atmospheres

Presentation #330.02 in the session Multi-Faceted Views of Planet Formation II: Connecting planetary atmospheres and architectures to planet formation.

Published onJun 29, 2022
Microphysical Insights into Protoplanetary Disks and Exoplanet Atmospheres

A fundamental understanding of planetary histories and characteristics requires an empirical connection between planet formation and evolved planets—a long-sought goal of astrophysics. This connection is now increasingly possible due to simultaneous revolutions in the observations of protoplanetary disks and exoplanet atmospheres. A key step towards relating these observations of different evolutionary stages is to characterize the composition of material in protoplanetary disks and relate these properties to the atmospheric composition of planets. In this talk, I will discuss initial steps that I have taken towards this goal. I will provide evidence that protoplanetary disks are more than an order of magnitude more massive than previously appreciated, that the detailed properties of clouds shape observations of substellar atmospheres, and that the physics of modeling clouds gives a new understanding of the compositional distribution in protoplanetary disks. I will conclude by briefly discussing avenues for relating planetary properties to the mass inventory in protoplanetary disks in order to develop the observationally-validated framework required to compositionally relate evolved planets to planet formation.

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