Searching for compact objects in binaries with Gaia DR3

Abstract

We search for compact objects in binaries based on Gaia DR3. A sample of ten targets is derived under the conditions: radial velocity variable, low temperature ($T_{\mathrm{eff}}<6000$ K), high mass function ($f(M_2)>1M_{\odot }$), 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.

15 pages, 8 figures, accepted for publication in ApJ

References in corpus (18)

• Array Programming with NumPy
• The Transiting Exoplanet Survey Satellite
• X-ray Properties of Black-Hole Binaries
• The first XMM-Newton slew survey catalogue: XMMSL1
• A wide star-black-hole binary system from radial-velocity measurements
• ARIADNE: Measuring accurate and precise stellar parameters through SED fitting
• An X-ray quiet black hole born with a negligible kick in a massive binary within the Large Magellanic Cloud
• A naked-eye triple system with a nonaccreting black hole in the inner binary
• The Gaia-ESO Survey: double, triple and quadruple-line spectroscopic binary candidates
• Double-, triple-line spectroscopic candidates in the LAMOST Medium-Resolution Spectroscopic Survey
• The white dwarf binary pathways survey - II. Radial velocities of 1453 FGK stars with white dwarf companions from LAMOST DR4
• The population of white dwarf-main sequence binaries in the SDSS DR 12
• The White Dwarf Binary Pathways Survey IV: Three close white dwarf binaries with G-type secondary stars
• What are the spectroscopic binaries with high mass functions near the Gaia DR3 main sequence?
• A Method to Search for Black Hole Candidates with Giant Companions by LAMOST
• Compact Object Candidates with K/M-dwarf Companions from LAMOST Low-resolution Survey
• A long-period pre-ELM system discovered from LAMOST medium-resolution survey
• A White Dwarf-Main Sequence Binary Unveiled by Time-Domain Observations from LAMOST and TESS