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TESS light curves of low-mass detached eclipsing binaries

Published online by Cambridge University Press:  24 September 2020

Krzysztof G. Hełminiak Open the ORCID record for Krzysztof G. Hełminiak [Opens in a new window] ,
Andrés Jordán ,
Nestor Espinoza  and
Rafael Brahm
Krzysztof G. Hełminiak
Affiliation:
N. Copernicus Astronomical Center, Polish Academy of Sciences, ul. Rabiańska 8, 87-100, Toruń, Poland email: xysiek@ncac.torun.pl
Andrés Jordán
Affiliation:
Instituto de Astrofísica, Pontificia Universidad Católica de Chile Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile Milleium Institute of Astrophysics Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile
Nestor Espinoza
Affiliation:
Instituto de Astrofísica, Pontificia Universidad Católica de Chile Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile Space Telescope Science Institute 3700 San Martin Dr., Baltimore, MD 21218, USA
Rafael Brahm
Affiliation:
Instituto de Astrofísica, Pontificia Universidad Católica de Chile Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile
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Abstract

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We present high-precision light curves of several M- and K-type, active detached eclipsing binaries (DEBs), recorded with 2-minute cadence by the Transiting Exoplanet Survey Satellite (TESS). Analysis of these curves, combined with new and literature radial velocity (RV) data, allows to vastly improve the accuracy and precision of stellar parameters with respect to previous studies of these systems. Results for one previously unpublished DEB are also presented.

Keywords

binaries: eclipsingbinaries: spectroscopicstars: activitystars: chromospheresstars: fundamental parametersstars: low-massstars: spots
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S354: Solar and Stellar Magnetic Fields: Origins and Manifestations , June 2019 , pp. 300 - 304
Copyright
© International Astronomical Union 2020

References

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