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A Stellar Magnesium to Silicon ratio in the atmosphere of an exoplanet
Jorge A. Sanchez, Peter C. B. Smith, Krishna Kanumalla +17
The elemental compositions of exoplanets encode information about their formation environments and internal structures. While volatile ratios such as carbon-to-oxygen (C/O) are use…
Do Rocky Planets around M Stars Have Atmospheres? A Statistical Approach to the Cosmic Shoreline
Jegug Ih, Eliza M. -R. Kempton, Hannah Diamond-Lowe +6
Answering the question "do rocky exoplanets around M stars have atmospheres?" is a key science goal of the JWST mission, with 500 hours of Director's Discretionary Time (DDT) award…
The Roasting Marshmallows Program with IGRINS on Gemini South III: Seeing deeper into the metal depleted atmosphere of a gas-giant on the cusp of the hot to ultra-hot Jupiter transition
Vatsal Panwar, Matteo Brogi, Krishna Kanumalla +17
Ultra-hot Jupiters are a class of gas-giant exoplanets that show a peculiar combination of thermochemical properties in the form of molecular dissociation, atomic ionization, and i…
An Analysis of Spitzer Phase Curves for WASP-121b and WASP-77Ab
Brian Davenport, Thomas Kennedy, E. M. May +6
We present analyses of Spitzer InfraRed Array Camera (IRAC) 3.6 m and 4.5 m phase curve observations of hot Jupiters WASP-77Ab and WASP-121b. For WASP-121b, we find amplitude…