Link between light-curve variability from TESS with binary-star parameters from The Joker and APOGEE

Jonah Goldfine*, David W. Hogg, Adrian Price-Whelan

*Corresponding author for this work

Research output: Contribution to journalMeeting abstract

Abstract

If radial-velocity surveys have sparse time coverage, many different binary-star orbital solutions can explain that same data. The goal of this project was to establish a connection between variability in the more information dense light-curve data and orbital solutions found from the sparse radial-velocity data as well as cases where the light curves can be used to break degeneracies within orbital-solution samplings. We compare multiples of peak periods from Lomb-Scargle and box-least-squares periodograms run on NASA TESS data with multiples of periods from posterior samplings of binary-system parameters from The Joker, a custom Monte Carlo sampler designed for the gravitational two-body problem, run on SDSS-IV APOGEE data. Unfortunately, there are few cases where there is an obvious relationship between the samplings and the light-curve variations and where degeneracies are broken.
Original languageEnglish
JournalBulletin of the American Astronomical Society
Volume56
Issue number2
Publication statusPublished - Feb 2024
Externally publishedYes
Event243rd American Astronomical Society Meeting - New Orleans, United States
Duration: 7 Jan 202411 Jan 2024

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