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Evidence for an Extended Hydrogen Outflow on WASP-12 b
Morgan Saidel, Shreyas Vissapragada, Heather A. Knutson +6
Recent observations of atmospheric escape from planets orbiting early-type stars indicate that planets with higher Roche filling factors have significantly higher mass loss rates.…
WASP-12b Exhibits Persistent In-Transit H Absorption
Shreyas Vissapragada, Fabienne Nail, Morgan MacLeod +6
High-resolution H and He 10830 Å transit spectroscopy can trace the extended upper atmospheres of exoplanets, typically revealing excess in-transit absorption that occurs in the…
Dynamical Tides during High-Eccentricity Migration produces the Hot Jupiter Pile-up, Neptune Ridge, and Neptune Desert
J. J. Zanazzi, Morgan MacLeod, Marta L. Bryan +1
The period distribution of hot gaseous exoplanets depends strongly on mass. Clustering between the orbital periods of 3 to 5-6 days is seen for sub-Saturns ("Neptune ri…
The First Dedicated Survey of Atmospheric Escape from Planets Orbiting F Stars
Morgan Saidel, Shreyas Vissapragada, Heather Knutson +9
Hydrodynamic escape can strip the envelopes of close-in exoplanets, but most observations of atmospheric mass loss to date have been confined to planets orbiting K and M dwarfs. A…
Modeling tails of escaping gas in exoplanet atmospheres with Harmonica
Carlos Gascón, Mercedes López-Morales, Shreyas Vissapragada +5
Exoplanets that reside close to their host stars, and therefore receive substantial amounts of X-ray and ultraviolet radiation, are prone to suffer from strong atmospheric escape.…