2022MNRAS.517..356K

Query : 2022MNRAS.517..356K

2022MNRAS.517..356K - Mon. Not. R. Astron. Soc., 517, 356-373 (2022/November-3)

Detection of 2460 double-lined spectroscopic binary candidates in the LAMOST-MRS using projected rotational velocities and a binary spectral model.

KOVALEV M., CHEN X. and HAN Z.

Abstract (from CDS):

We present a new method for the detection of double-lined spectroscopic binaries (SB2s) using Vsin i values from spectral fits. The method is tested on synthetic and real spectra from the Large Sky Area Multi-Object fiber Spectroscopic Telescope Medium Resolution Survey. It can reliably detect SB2 candidates for double-lined binaries with $V \sin {i}_1+V \sin {i}_2\lt 300\, {\rm km}\, {\rm s}^{-1}$ if the radial velocity separation is large enough. Using this method, we detected 2460 SB2 candidates, 1410 of which are new discoveries. We confirmed the correlation between the radial velocity separation estimated by the binary model and Vsin i0 estimated by the single-star model using the selected sample. Additionally, our method found one new SB2 candidate in open cluster M11.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): binaries : spectroscopic

VizieR on-line data: <Available at CDS (J/MNRAS/517/356): tableb1.dat tablec1.dat tabled1.dat>

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 10

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Number of rows : 10
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 CRTS J005425.6+081141 EB* 00 54 25.6360788672 +08 11 41.752261860   14.958 13.980 13.875   ~ 13 0
2 IRAS 03028+5445 S*? 03 06 35.1253585728 +54 57 21.551318820           M5.0III 5 0
3 NSVS 6695283 EB* 03 43 00.7379590344 +33 04 48.219389688   12.25 11.37     ~ 11 0
4 TYC 2406-2000-1 * 05 59 23.9599347048 +30 31 04.280545848   11.80 11.68     ~ 2 0
5 ASAS J065002+2221.5 EB* 06 50 01.6580577336 +22 21 27.739970892   12.89 12.41 12.24   ~ 10 0
6 Cl* NGC 2682 SAND 1113 RS* 08 51 25.3043953560 +12 02 56.494997844 15.299 14.78 13.736     ~ 71 0
7 UCAC4 689-050880 Pe* 09 31 06.9785264799 +47 38 31.621667798   14.701 13.854 13.642   ~ 4 0
8 NGC 6705 1714 * 18 50 43.5109624608 -06 13 59.903500512   15.787 15.081     ~ 9 0
9 NGC 6705 1176 SB* 18 51 02.2324772832 -06 14 54.726673560   13.588 13.190     ~ 17 0
10 NGC 6705 OpC 18 51 03.7 -06 16 18   6.32 5.8     ~ 442 0

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