Understanding Post-RGB Binaries Through Stable Mass Transfer

Watch a 19-minute astronomy lecture exploring the relationship between post-AGB binary star systems and their orbital periods, with a focus on understanding discrepancies between observed Galactic post-AGB binaries and binary population synthesis models. Learn about detailed stable mass transfer models for low- and intermediate-mass binaries, examining their evolution from post-main sequence to the first thermal pulse on the AGB. Discover the specific analysis of systems below RGB-tip luminosity, where post-RGB binaries are expected to exist, and understand how luminosity-orbital period relations are determined across various metallicities to estimate orbital characteristics.