2014MNRAS.445.2371H

Query : 2014MNRAS.445.2371H

2014MNRAS.445.2371H - Mon. Not. R. Astron. Soc., 445, 2371-2377 (2014/December-2)

Masses of the components of SB2 binaries observed with Gaia - I. Selection of the sample and mass ratios of 20 new SB2s discovered with Sophie.

HALBWACHS J.-L., ARENOU F., POURBAIX D., FAMAEY B., GUILLOUT P., LEBRETON Y., SALOMON J.-B., TAL-OR L., IBATA R. and MAZEH T.

Abstract (from CDS):

In anticipation of the Gaia astrometric mission, a large sample of spectroscopic binaries has been observed since 2010 with the Sophie spectrograph at the Haute-Provence Observatory. Our aim is to derive the orbital elements of double-lined spectroscopic binaries (SB2s) with an accuracy sufficient finally to obtain the masses of the components with relative errors as small as 1 percent when the astrometric measurements of Gaia are taken into account. Simultaneously, the luminosities of the components in the Gaia photometric band G will also be obtained. Our observation program started with 200 SBs, including 152 systems that were only known as single-lined. Thanks to the high efficiency of the Sophie spectrograph, an additional component was found for 25 SBs. After rejection of five multiple systems, 20 new SB2s were retained, including eight binaries with an evolved primary, and their mass ratios were derived. Our final sample contains 68 SB2s, including two late-type giants and 10 other evolved stars.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): binaries: spectroscopic

Simbad objects: 25

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Number of rows : 25
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 HD 290 SB* 00 07 37.9013213952 +40 08 52.759567680   7.69 6.73     G5 34 0
2 V* BF Psc RS* 01 31 54.8574554592 +16 02 49.052404176   8.79 7.81     G5 53 0
3 HD 9312 SB* 01 32 03.1265727706 +16 56 50.022287787   7.75 6.77 6.2   G5 57 0
4 HD 12871 SB* 02 06 22.1684202000 +14 06 07.646500044   9.90 9.37     G 17 0
5 HD 16646 SB* 02 40 33.0785758944 +18 35 59.161337016 8.450 8.490 8.100     F5 35 0
6 HD 18328 SB* 02 57 34.7146549368 +29 42 34.287084036   9.41 8.87     G0V 23 0
7 HD 241105 SB* 05 10 00.8528791176 +27 38 35.390080824   10.19   8.6   G5 48 0
8 HD 35035 SB* 05 23 01.4149311816 +28 28 07.957598916   7.82 7.56     A2m 34 0
9 HD 43821 SB* 06 18 40.3593841200 +09 02 49.812626868   7.092 6.225     K0 40 0
10 HD 57267 Ro* 07 21 32.8157970960 +26 09 33.244881732   8.40 7.510   6.475 G5III+A: 28 0
11 HD 86358 SB* 09 58 26.0389184232 +27 45 32.396952132 6.790 6.800 6.460     F2V 63 0
12 HD 110025 SB* 12 39 09.2090983824 +16 28 47.208655308   8.02 7.58     F3V 43 0
13 BD+17 2512 SB* 12 39 12.3764663952 +16 30 36.245624688   9.83 9.18     G5 18 0
14 HD 110106 SB* 12 39 37.0719508296 +19 55 46.924202496   9.75 8.80     K3V 17 0
15 HD 112138 SB* 12 53 51.7282243488 +41 49 21.541280232   9.20 8.53 10.3   G5V 37 0
16 HD 115588 SB* 13 17 56.6448608976 +17 17 49.332370308   10.36 9.71     G3V 8 0
17 HD 120005 SB* 13 46 13.7343387888 +30 53 49.241119992   7.00   6.2   F6V 63 0
18 * kap01 Boo SB* 14 13 27.8241117808 +51 47 16.622477020 7.04 7.08 6.69     F2V 90 0
19 HD 131208 SB* 14 51 55.8148670184 +08 49 31.188725508   8.66 7.61     K0 26 0
20 HD 149240 SB* 16 32 20.5026990048 +29 05 54.497322276 10.000 9.660 8.930     K0 14 0
21 HD 179558 SB* 19 12 27.5133216504 +16 51 00.686504916   8.70   7.5   G5V 50 0
22 HD 196133 SB* 20 33 39.6425794632 +45 10 32.037041496   6.734 6.696     A0V 52 0
23 HD 207739 SB* 21 49 58.8414553632 +43 57 56.833528572   9.22 8.59     kF0:mGepec 68 0
24 HD 212989 ** 22 28 07.3602414462 +12 14 55.643313187       6.7   K0V 56 0
25 BD+38 4955 SB* 23 13 38.8205905578 +39 25 02.589638688 11.52 11.67 11.01 10.38 9.92 F6 128 0

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