D. Graczyk
The surface brightness–colour relations based on eclipsing binary stars and calibrated with Gaia EDR3
Graczyk, D.; Pietrzyński, G.; Gałan, C.; Gieren, W.; Tkachenko, A.; Anderson, R.I.; Gallenne, A.; Górski, M.; Hajdu, G.; Kałuszyński, M.; Karczmarek, P.; Kervella, P.; Maxted, P.F.L.; Nardetto, N.; Narloch, W.; Pavlovski, K.; Pilecki, B.; Pych, W.; Southworth, J.; Storm, J.; Suchomska, K.; Taormina, M.; Villanova, S.; Wielgórski, P.; Zgirski, B.; Konorski, P.
Authors
G. Pietrzyński
C. Gałan
W. Gieren
A. Tkachenko
R.I. Anderson
A. Gallenne
M. Górski
G. Hajdu
M. Kałuszyński
P. Karczmarek
P. Kervella
Pierre Maxted p.maxted@keele.ac.uk
N. Nardetto
W. Narloch
K. Pavlovski
B. Pilecki
W. Pych
Dr John Taylor j.k.taylor@keele.ac.uk
J. Storm
K. Suchomska
M. Taormina
S. Villanova
P. Wielgórski
B. Zgirski
P. Konorski
Abstract
Aims. The surface brightness–colour relation (SBCR) is a basic tool for establishing precise and accurate distances within the Local Group. Detached eclipsing binary stars with accurately determined radii and trigonometric parallaxes allow calibration of the SBCRs with unprecedented accuracy.
Methods. We analysed four nearby eclipsing binary stars containing late F-type main sequence components: AL Ari, AL Dor, FM Leo, and BN Scl. We determined very precise spectroscopic orbits and combined them with high-precision ground- and space-based photometry. We derived the astrophysical parameters of their components with mean errors of 0.1% for mass and 0.4% for radius. We combined those four systems with another 24 nearby eclipsing binaries with accurately known radii from the literature for which Gaia EDR3 parallaxes are available in order to derive the SBCRs.
Results. The resulting SBCRs cover stellar spectral types from B9 V to G7 V. For calibrations, we used Johnson optical B and V, Gaia GBP and G, and 2MASS JHK bands. The most precise relations are calibrated using the infrared K band and allow angular diameters of A-, F-, and G-type dwarf and subgiant stars to be predicted with a precision of 1%.
Citation
Graczyk, D., Pietrzyński, G., Gałan, C., Gieren, W., Tkachenko, A., Anderson, R., …Konorski, P. (2021). The surface brightness–colour relations based on eclipsing binary stars and calibrated with Gaia EDR3. Astronomy & Astrophysics, 649, Article A109. https://doi.org/10.1051/0004-6361/202140571
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 2, 2021 |
Online Publication Date | May 26, 2021 |
Publication Date | 2021-05 |
Publicly Available Date | May 30, 2023 |
Journal | Astronomy & Astrophysics |
Print ISSN | 0004-6361 |
Publisher | EDP Sciences |
Peer Reviewed | Peer Reviewed |
Volume | 649 |
Article Number | A109 |
DOI | https://doi.org/10.1051/0004-6361/202140571 |
Publisher URL | https://www.aanda.org/articles/aa/abs/2021/05/aa40571-21/aa40571-21.html |
Files
2103.02077.pdf
(2.9 Mb)
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Publisher Licence URL
https://creativecommons.org/licenses/by-nc/4.0/
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