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A long spin period for a sub-Neptune-mass exoplanet
Ellen M. Price, Juliette Becker, Zoë L. de Beurs +2
HIP 41378 f is a sub-Neptune exoplanet with an anomalously low density. Its long orbital period and deep transit make it an ideal candidate for detecting oblateness photometrically…
Radius and mass distribution of ultra-short period planets
Ana Sofía M. Uzsoy, Leslie A. Rogers, Ellen M. Price
Ultra-short period (USP) planets are an enigmatic subset of exoplanets defined by having orbital periods 1 day. It is still not understood how USP planets form, or to what degr…
Ice-Coated Pebble Drift as a Possible Explanation for Peculiar Cometary CO/H2O Ratios
Ellen M. Price, L. Ilsedore Cleeves, Dennis Bodewits +1
To date, at least three comets -- 2I/Borisov, C/2016 R2 (PanSTARRS), and C/2009 P1 (Garradd) -- have been observed to have unusually high CO concentrations compared to water. We at…
Tidally-Distorted, Iron-Enhanced Exoplanets Closely Orbiting Their Stars
Ellen M. Price, Leslie A. Rogers
The transiting planet candidate KOI 1843.03 ( radius, 4.245 hour orbital period, host star) has the shortest orbital period of any planet yet discovere…