5 papers
Improving exoplanet mass characterisation with Bayesian model selection using the Learned Harmonic Mean Estimator
Ross S. Dobson, Vincent Van Eylen, Ioanna Manolopoulou +1
Radial velocity (RV) analyses require modelling choices (such as eccentricity treatment, noise model, velocity trends, and number of planets) that can significantly affect derived…
Determining the Host Stars of Planets in Binary Star Systems with Asterodensity Profiling: Investigating the Canonical Radius Gap
Nathanael Burns-Watson, Kendall Sullivan, Adam Kraus
Over the past 30 years, thousands of exoplanets have been discovered, revealing detailed demographics of planets outside the Solar System. One of the most dramatic features of the…
Planetary Architectures of Kepler Compact Multis with Binary Star Companions
Kendall Sullivan, Gregory J. Gilbert
Planets in binary-star systems exhibit demographic differences compared to planets in single-star systems. In particular, planets with binary-star hosts have a lower overall occurr…
Barium Stars Across the Milky Way: Probing Their Origins via the GALAH Survey
Jaden Levine, Catherine Manea, Keith Hawkins +4
Barium stars are unusually enriched in barium ([Ba/Fe] >= 1.0 dex) and not predicted by current Galactic chemical evolution models. Previous observations of barium stars have found…
Quantifying the Contamination From Nearby Stellar Companions in Gaia DR3 Photometry
Kendall Sullivan, Adam L. Kraus, Travis A. Berger +1
Identifying and removing binary stars from stellar samples is a crucial but complicated task. Regardless of how carefully a sample is selected, some binaries will remain and compli…