000006658 001__ 6658
000006658 005__ 20240125123308.0
000006658 0247_ $$2DOI$$a10.1051/0004-6361/202347111
000006658 037__ $$aSCART-2024-0037
000006658 100__ $$aChevalier, S.
000006658 245__ $$aBinary masses and luminosities with Gaia DR3
000006658 260__ $$c2023
000006658 520__ $$aContext. The recent third data release (DR3) of Gaia has brought some new exciting data about stellar binaries. It provides new opportunities to fully characterize more stellar systems and contributes to enriching our global knowledge of stellar behaviour. Aims: By combining the new Gaia non-single stars catalogue with double-lined spectroscopic binaries (SB2), we can determine the individual masses and luminosities of the components. To fit an empirical mass-luminosity relation in the Gaia G band, lower-mass stars must be added. These masses can be derived using Gaia-resolved wide binaries combined with literature data. Methods: Using the BINARYS tool, we combined the astrometric non-single star solutions in the Gaia DR3 with SB2 data from two other catalogues: the 9th Catalogue of Spectroscopic Binary orbits (SB9), and APOGEE. We also searched for low-mass stars that are resolved in Gaia with direct imaging and HIPPARCOS data or with a literature mass fraction. Results: The combination of Gaia astrometric non-single star solutions with double-lined spectroscopic data enabled us to characterize 43 binary systems with SB9 and 13 systems with APOGEE. We furthermore derived the masses of 6 low-mass binaries that are resolved with Gaia. We then derived an empirical mass-luminosity relation in the Gaia G band down to 0.12 ℳ⊙.
000006658 536__ $$a Prf-2020-033_BISTRO/$$c Prf-2020-033_BISTRO/$$f Prf-2020-033_BISTRO
000006658 594__ $$aNO
000006658 6531_ $$abinaries: general
000006658 6531_ $$abinaries: spectroscopic
000006658 6531_ $$abinaries: visual
000006658 6531_ $$aastrometry
000006658 6531_ $$astars: fundamental parameters
000006658 6531_ $$aAstrophysics
000006658 6531_ $$aSolar and Stellar Astrophysics
000006658 6531_ $$aAstrophysics of Galaxies
000006658 700__ $$aBabusiaux, C.
000006658 700__ $$aMerle, T.
000006658 700__ $$aArenou, F.
000006658 773__ $$pAstronomy & Astrophysics$$v678$$y2023
000006658 8560_ $$fthibault.merle@ksb-orb.be
000006658 85642 $$ahttps://ui.adsabs.harvard.edu/abs/2023A%26A...678A..19C/abstract
000006658 905__ $$apublished in
000006658 980__ $$aREFERD