Year: 2026
Type: article
Abstract: Understanding tidal dissipation is a requisite step for explaining the evolution of systems such as short-period binaries. This understanding has not yet been achieved, and in fact there are many different approaches to modeling tides. By using Bayesian analysis on a system-by-system basis, we provide additional constraints on dissipation for 105 short-period Sunlike Kepler binaries. We account for period-dependent Q and stellar evolution, and propagate observational uncertainties to uncertainties in our constraints. We find a group constraint of log Q * ′ ≈ 6.75 , with no apparent dependence on tidal period. We also do not detect mass dependence for Q . Our inferred prescription for the tidal dissipation successfully reproduces the unexpected overlap between almost perfectly circular and significantly noncircular orbits in binaries of Sunlike stars reported by J. J. Zanazzi.
Source: The Astrophysical Journal
Institutions: The University of Texas at Dallas, University of Lethbridge
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $4,499
Award: G1017294144
OpenAlex ID: W7213890908