2 papers
astro-ph.EP2025
Polka-dotted Stars: a Hierarchical Model for Mapping Stellar Surfaces Using Occultation Light Curves and the Case of TOI-3884
Sabina Sagynbayeva, Will M. Farr, Brett Morris +1
We present StarryStarryProcess, a novel hierarchical Bayesian framework for mapping stellar surfaces using exoplanet transit light curves. While previous methods relied solely on s…
astro-ph.SR2024
A Compact, Coherent Representation of Stellar Surface Variation in the Spectral Domain
Lily L. Zhao, Megan E. Bedell, David W. Hogg +1
Time-varying inhomogeneities on stellar surfaces constitute one of the largest sources of radial velocity (RV) error for planet detection and characterization. We show that stellar…