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astro-ph.EP2026
Observational Signatures of Circumstellar Gas Tori Formed by Planetary Mass-Loss from Close-In Exoplanets
Ethan Schreyer, Ruth Murray-Clay
Close-in exoplanets with H/He atmospheres often undergo hydrodynamic escape. In extreme cases, it is hypothesized that the mass loss can be high enough for the escaping planetary m…
astro-ph.EP2026
Using observations of escaping H/He to constrain the atmospheric composition of sub-Neptunes
James G. Rogers, James E. Owen, Ethan Schreyer +1
The internal composition of sub-Neptunes remains a prominent unresolved question in exoplanetary science. We present a technique to place constraints on envelope mean molecular wei…