Tales of stellar and binary co-evolutionand stellar cannibalism

Beck, Paul Gerhard
Bibliographical reference

TASC9/KASC16 9th TESS/16th Kepler Asteroseismic Science Consortium Workshop

Advertised on:
10
2025
Number of authors
1
IAC number of authors
1
Citations
0
Refereed citations
0
Description
Asteroseismology of solar-like oscillators provides unique insights into stellar evolution, from the main sequence through to advanced stages of the red giant phase. In this poster, we present a study of the binary fraction among red giants, from combined data from the APOKASC-3 and APO-K2 catalogs with the Gaia Non-Single-Star catalog. This large and homogeneous dataset enables us to trace the declining binary fraction from the main-sequence, along the red giant branch into the red clump as well as changes in orbital period, eccentricity, and stellar activity driven by stellar evolution and tidal interactions. We demonstrate how asteroseismology uncovers the signatures of star-star interactions, including enhanced activity, mass loss, and evidence for stellar cannibalism (and potential survivors thereof).