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Debiasing the Minimum-Mass Extrasolar Nebula: On the Diversity of Solid Disk Profiles
Matthias Y. He, Eric B. Ford
A foundational idea in the theory of in situ planet formation is the "minimum mass extrasolar nebula" (MMEN), a surface density profile () of disk solids that is necessary to fo…
GJ 3929: High Precision Photometric and Doppler Characterization of an Exo-Venus and its Hot, Mini-Neptune-mass Companion
Corey Beard, Paul Robertson, Shubham Kanodia +31
We detail the follow up and characterization of a transiting exo-Venus identified by TESS, GJ 3929b, (TOI-2013b) and its non-transiting companion planet, GJ 3929c (TOI-2013c). GJ 3…
Impact of Correlated Noise on the Mass Precision of Earth-analog Planets in Radial Velocity Surveys
Jacob K. Luhn, Eric B. Ford, Zhao Guo +6
Characterizing the masses and orbits of near-Earth-mass planets is crucial for interpreting observations from future direct imaging missions (e.g., HabEx, LUVOIR). Therefore, the E…
Migration traps as the root cause of the Kepler dichotomy
Brianna Zawadzki, Daniel Carrera, Eric B. Ford
It is often assumed that the "Kepler dichotomy" -- the apparent excess of planetary systems with a single detected transiting planet in the Kepler catalog -- reflects an intrinsic…
NEID Rossiter-McLaughlin Measurement of TOI-1268b: A Young Warm Saturn Aligned with Its Cool Host Star
Jiayin Dong, Chelsea X. Huang, George Zhou +56
Close-in gas giants present a surprising range of stellar obliquity, the angle between a planet's orbital axis and its host star's spin axis. It is unclear whether the obliquities…
The EXPRES Stellar Signals Project II. State of the Field in Disentangling Photospheric Velocities
Lily L. Zhao, Debra A. Fischer, Eric B. Ford +40
Measured spectral shifts due to intrinsic stellar variability (e.g., pulsations, granulation) and activity (e.g., spots, plages) are the largest source of error for extreme precisi…