2005MNRAS.360..718C

Query : 2005MNRAS.360..718C

2005MNRAS.360..718C - Mon. Not. R. Astron. Soc., 360, 718-726 (2005/June-3)

Contribution to the study of composite spectra - X. HD 3210/1, 27395, 39847, 70826 and 218257/8: five new spectroscopic binaries in multiple systems.

CARQUILLAT J.-M., PRIEUR J.-L. and GINESTET N.

Abstract (from CDS):

We present the results of a radial velocity (RV) study of five new SB1 spectroscopic binaries with composite spectra: HD 3210/1, 27395, 39847, 70826 and 218257/8. We analyse the composition of those objects which are found to be triple systems (at least): all of them include a cool evolved star, a hot star of type B or A and a third component.

From the RV measurements of the cool components, we derive the orbital elements of the corresponding spectroscopic binaries for the first time. Their analysis leads us to propose a model which describes the nature of the individual components of those five systems, with some predictions on their angular separations and magnitudes. In some cases, the spectroscopic companion of the cool component is not the hot star contributing to the composite spectrum.


Abstract Copyright: 2005 RAS

Journal keyword(s): binaries: spectroscopic

Simbad objects: 12

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Number of rows : 12
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 3211 SB* 00 35 48.6977326560 +49 01 16.077075456   7.59 6.98     A2 38 0
2 HD 27395B * 04 21 45.2682998184 +50 02 06.233172216   9.31 9.14     B8IV 1 0
3 HD 27395A SB* 04 21 45.4735352664 +50 02 06.632924028   8.670 7.284     G9II+B 3 0
4 HD 27395 ** 04 21 45.47510 +50 02 06.6444           G3Ib 24 0
5 * zet Aur SB* 05 02 28.6834429313 +41 04 32.995159760 5.35 4.97 3.75 2.62 1.75 K5II+B7V 470 0
6 HD 39286 * 05 52 23.4063709536 +19 52 04.250177472   6.518 5.985     K0IIb+B8IV 58 0
7 HD 39847 ** 05 56 12.8819315208 +25 19 47.622428220   8.14 7.78     A2III+F6IVe 27 0
8 HD 39847B * 05 56 12.907 +25 19 48.03   10.50 10.01     F6IVe 2 0
9 HD 70827 * 08 24 48.6499436496 +20 08 34.147139496   8.71 8.61     ~ 15 1
10 HD 70826 SB* 08 24 49.1837043984 +20 09 10.763749152 8.390 8.010 7.380     G7III 45 0
11 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2417 1
12 BD+41 4676 SB* 23 06 09.7040398824 +41 47 23.435445552   8.64 8.33 7.70   G5+A3 19 0

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