2007ApJ...655..473M

Query : 2007ApJ...655..473M

2007ApJ...655..473M - Astrophys. J., 655, 473-483 (2007/January-3)

A spectroscopic study of field and runaway OB stars.

McSWAIN M.V., BOYAJIAN T.S., GRUNDSTROM E.D. and GIES D.R.

Abstract (from CDS):

Identifying binaries among runaway O- and B-type stars offers valuable insight into the evolution of open clusters and close binary stars. Here we present a spectroscopic investigation of 12 known or suspected binaries among field and runaway OB stars. We find new orbital solutions for five single-lined spectroscopic binaries (HD 1976, HD 14633, HD 15137, HD 37737, and HD 52533), and we classify two stars thought to be binaries (HD 30614 and HD 188001) as single stars. In addition, we reinvestigate their runaway status using our new radial velocity data with the UCAC2 proper-motion catalogs. Seven stars in our study appear to have been ejected from their birthplaces, and at least three of these runaways are spectroscopic binaries and are of great interest for future study.

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Journal keyword(s): Stars: Binaries: Spectroscopic - Stars: Early-Type - stars: individual (Feige 25) - stars: individual (HD 1976) - Stars: Individual: Henry Draper Number: HD 14633 - Stars: Individual: Henry Draper Number: HD 15137 - stars: individual (HD 30614) - stars: individual (HD 36576) - stars: individual (HD 37737) - stars: individual (HD 52266) - stars: individual (HD 52533) - stars: individual (HD 60848) - stars: individual (HD 188001) - stars: individual (HD 195592) - Stars: Kinematics

Simbad objects: 16

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Number of rows : 16
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 1976 SB* 00 24 15.6540035976 +52 01 11.703208404 4.84 5.459 5.580     B5IV 151 0
2 NGC 654 OpC 01 44 01.5 +61 53 06   7.34 6.5     ~ 206 0
3 HD 14633 SB* 02 22 54.2923246536 +41 28 47.724359448 6.14 8.79 8.73 8.69   ON8.5V 241 0
4 HD 15137 SB* 02 27 59.8113542520 +52 32 57.589857672 7 7.92 7.86     O9.5II-IIIn 143 0
5 Feige 25 * 02 38 37.7859286344 +05 28 11.304856488   12.50 13.55     B7 57 0
6 NAME CAS-TAU ASS MGr 04 16 +27.6           ~ 86 1
7 * alf Cam s*b 04 54 03.0113886719 +66 20 33.633625509 3.47 4.34 4.29 4.18 4.18 O9Ia 675 1
8 Ass Aur OB 1 As* 05 22 +33.9           ~ 85 0
9 * 120 Tau Be* 05 33 31.6304227080 +18 32 24.827431848 4.94 5.70 5.69     B2IV-Ve 156 0
10 HD 37737 SB* 05 42 31.1584798320 +36 12 00.508318740 8.02 8.30 8.06     O9.5II-III(n) 100 0
11 HD 52266 SB* 07 00 21.0763468632 -05 49 35.954203044 6.32 7.22 7.23     O9.5IIIn 125 0
12 HD 52533 SB* 07 01 27.0486333888 -03 07 03.286283952 6.66 7.57 7.68     O8.5IVn 123 0
13 HD 60848 Be* 07 37 05.7325392528 +16 54 15.300327852 5.55 6.67 6.87     O8:V:pe 150 0
14 V* V479 Sct HXB 18 26 15.0561548880 -14 50 54.247274304 12.02 12.23 11.27 11.04   ON6V((f))z 613 2
15 * 9 Sge s*b 19 52 21.7649260368 +18 40 18.751320984 5.32 6.24 6.23     O7.5Iabf 308 1
16 HD 195592 s*b 20 30 34.9690901208 +44 18 54.859533372 7.75 7.95 7.08 6.29 5.60 O9.7Ia 221 1

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