2014ApJ...782..101P

Query : 2014ApJ...782..101P

2014ApJ...782..101P - Astrophys. J., 782, 101 (2014/February-3)

Massive binaries in the vicinity of Sgr A*.

PFUHL O., ALEXANDER T., GILLESSEN S., MARTINS F., GENZEL R., EISENHAUER F., FRITZ T.K. and OTT T.

Abstract (from CDS):

A long-term spectroscopic and photometric survey of the most luminous and massive stars in the vicinity of the supermassive black hole Sgr A* revealed two new binaries: a long-period Ofpe/WN9 binary, IRS 16NE, with a modest eccentricity of 0.3 and a period of 224 days, and an eclipsing Wolf-Rayet binary with a period of 2.3 days. Together with the already identified binary IRS 16SW, there are now three confirmed OB/WR binaries in the inner 0.2 pc of the Galactic center. Using radial velocity change upper limits, we were able to constrain the spectroscopic binary fraction in the Galactic center to FSB = 0.30–0.21+0.34/bin/bash: ./:0: Permission denied

Abstract Copyright: ∼

Journal keyword(s): binaries: eclipsing - Galaxy: center - infrared: stars - stars: early-type - stars: massive - stars: Wolf-Rayet

Simbad objects: 21

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Number of rows : 21
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 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1276 2
2 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
3 [PGM2006] E60 WR* 17 45 39.7085 -29 00 29.723           WN7? 21 0
4 GCIRS 34W WR* 17 45 39.73 -29 00 26.6           Ofpe/WN9 63 0
5 GCIRS 13E2 WR* 17 45 39.8006 -29 00 29.819           WN8 50 0
6 GCIRS 29N WR* 17 45 39.917 -29 00 26.71           WC9 61 0
7 GCIRS 29NE1 WR* 17 45 39.9643 -29 00 26.021           WC8/9 37 0
8 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3
9 GCIRS 33N s*b 17 45 40.0381 -29 00 30.302           B0.5/1I 41 0
10 GCIRS 16NW WR* 17 45 40.0451 -29 00 26.847           Ofpe/WN9 144 0
11 GCIRS 16S WR* 17 45 40.09 -29 00 29.8           ~ 12 0
12 GCIRS 33E WR* 17 45 40.0941 -29 00 31.213           Ofpe/WN9 59 0
13 GCIRS 16C WR* 17 45 40.12 -29 00 27.6           Ofpe/WN9 197 1
14 GCIRS 16SW WR* 17 45 40.1245 -29 00 29.018           Ofpe/WN9 167 0
15 GCIRS 8 * 17 45 40.14 -28 59 58.7           O 72 0
16 GCIRS 16CC s*b 17 45 40.1939 -29 00 27.532           O9.5/B0.5I 60 0
17 GCIRS 35W WR* 17 45 40.26 -29 00 29.3           WN5/6 50 0
18 GCIRS 16NE WR* 17 45 40.26 -29 00 27.2           Ofpe/WN9 156 0
19 GCIRS 1E s*b 17 45 40.5268 -29 00 27.863           B1/3I 17 0
20 Ass Cyg OB 2 As* 20 33.2 +41 19           ~ 1023 0
21 GCIRS 7E2 * ~ ~           ~ 14 0

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