Searching for Compact Objects in Binaries with Gaia DR3

Abstract We search for compact objects in binaries based on Gaia DR3. A sample of 10 targets is derived under the following conditions: the radial velocity variable, low temperature ( T eff < 6000 K), high mass function ( f ( M 2 ) > 1 M ⊙ ), and ellipsoidal-like light curves. Two targets have...

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Bibliographic Details
Published inThe Astrophysical journal Vol. 940; no. 2; pp. 126 - 137
Main Authors Fu, Jin-Bo, Gu, Wei-Min, Zhang, Zhi-Xiang, Yi, Tuan, Qi, Sen-Yu, Zheng, Ling-Lin, Liu, Jifeng
Format Journal Article
LanguageEnglish
Published Philadelphia The American Astronomical Society 01.12.2022
IOP Publishing
Subjects
Astrophysics
Binary stars
Close binary stars
Compact binary stars
Light curve
Light curves
Low temperature
Mathematical analysis
Orbits
Radial velocity
Searching
Spectroscopic binary stars
Spectroscopic observation
Spectroscopy
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Summary:Abstract We search for compact objects in binaries based on Gaia DR3. A sample of 10 targets is derived under the following conditions: the radial velocity variable, low temperature ( T eff < 6000 K), high mass function ( f ( M 2 ) > 1 M ⊙ ), and ellipsoidal-like light curves. Two targets have LAMOST spectroscopic observations, one of which is a double-lined spectroscopic binary. The observational data of seven targets are not self-consistent, since their photometric periods are even shorter than the theoretical minimum orbital periods calculated by the stellar parameters from Gaia DR3. After excluding these seven inconsistent targets and another target contaminated by a near-bright star, the remaining two targets may contain compact objects worth follow-up observations. This work may serve as an example to demonstrate the feasibility of searching for compact objects in the massive Gaia data.
Bibliography:Stars and Stellar Physics
AAS40803
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/ac9b4c