2024MNRAS.527..521K

Query : 2024MNRAS.527..521K

2024MNRAS.527..521K - Mon. Not. R. Astron. Soc., 527, 521-530 (2024/January-1)

Detection of 12 426 SB2 candidates in the LAMOST-MRS, using a binary spectral model.

KOVALEV M., ZHOU Z., CHEN X. and HAN Z.

Abstract (from CDS):

We use an updated method for the detection of double-lined spectroscopic binaries (SB2s) using Vsin i values from spectral fits. The method is applied to all spectra from Large sky Area Multi-Object fiber Spectroscopic Telescope Medium Resolution Survey. Using this method, we detect 12 426 SB2 candidates, where 4321 are already known and 8105 are new discoveries. We check their spectra manually to minimize possible false positives. We also detect several cases of contamination of the spectra by solar light. Additionally, for candidates with multiple observations, we compute mass ratios with systemic velocities and determine Keplerian orbits. We present an updated catalogue of all SB2 candidates together with additional information for some of them in separate data tables.

Abstract Copyright: © The Author(s) 2023. Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): techniques: spectroscopic - binaries: spectroscopic - stars: individual: J080107.63+384345.6

VizieR on-line data: <Available at CDS (J/MNRAS/527/521): tableb1.dat tablec1.dat tablec2.dat>

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ATO J062.2537+32.1452 EB* 04 09 00.8932851360 +32 08 42.724339262   13.069 12.347 12.397   ~ 4 0
2 TYC 2406-2000-1 * 05 59 23.9599347048 +30 31 04.280545848   11.80 11.68     ~ 2 0
3 ZTF J064726.39+223431.6 EB* 06 47 26.3960418012 +22 34 31.706460742   14.245 13.640 13.441   ~ 8 0
4 UCAC4 566-032796 Pe* 06 50 32.4597029093 +23 10 30.277303870   13.206 12.617 12.481   F0mA2V_lB 4 0
5 Gaia DR3 919497183191077248 * 08 01 07.6425776740 +38 43 45.677300340           ~ 1 0
6 LAMOST J115307.93+353528.2 * 11 53 07.9354478101 +35 35 28.212849815           ~ 2 0
7 BPS BS 16549-0037 PM* 11 57 40.2290046576 +36 42 16.456987044   13.99 13.56 13.67   ~ 2 0

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