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Mass Upper Bounds for Over 50 Kepler Planets Using Low-S/N Transit Timing Variations
Jared C. Siegel, Leslie A. Rogers
Prospects for expanding the available mass measurements of the Kepler sample are limited. Planet masses have typically been inferred via radial velocity (RV) measurements of the ho…
Thermal Evolution and magnetic history of rocky planets
Jisheng Zhang, Leslie Rogers
We present a thermal evolution model coupled with a Henyey solver to study the circumstances under which a rocky planet could potentially host a dynamo in its liquid iron core and/…
The K2-3 system revisited: testing photoevaporation and core-powered mass loss with three small planets spanning the radius valley
Hannah Diamond-Lowe, Laura Kreidberg, C. E. Harman +11
Multi-planet systems orbiting M dwarfs provide valuable tests of theories of small planet formation and evolution. K2-3 is an early M dwarf hosting three small exoplanets (1.5-2.0…
The Volatile Carbon to Oxygen Ratio as a Tracer for the Formation Locations of Interstellar Comets
Darryl Z. Seligman, Leslie A. Rogers, Samuel H. C. Cabot +13
Based on the occurrence rates implied by the discoveries of 1I/`Oumuamua and 2I/Borisov, the forthcoming Rubin Observatory Legacy Survey of Space and Time (LSST) should detect $\ge…
Evaluating the Evidence for Water World Populations using Mixture Models
Andrew R. Neil, Jessica Liston, Leslie A. Rogers
Water worlds have been hypothesized as an alternative to photo-evaporation in order to explain the gap in the radius distribution of Kepler exoplanets. We explore water worlds with…
Inferring Late Stage Enrichment of Exoplanet Atmospheres from Observed Interstellar Comets
Darryl Z. Seligman, Juliette Becker, Fred C. Adams +2
The discovery of the first two interstellar objects implies that, on average, every star contributes a substantial amount of material to the galactic population by ejecting such bo…