2006ApJ...649L.103M

Query : 2006ApJ...649L.103M

2006ApJ...649L.103M - Astrophys. J., 649, L103-L106 (2006/October-1)

GCIRS 16SW: a massive eclipsing binary in the Galactic Center.

MARTINS F., TRIPPE S., PAUMARD T., OTT T., GENZEL R., RAUW G., EISENHAUER F., GILLESSEN S., MANESS H. and ABUTER R.

Abstract (from CDS):

We report on the spectroscopic monitoring of GCIRS 16SW, an Ofpe/WN9 star and LBV candidate in the central parsec of the Galaxy. SINFONI observations show strong daily spectroscopic changes in the K band. Radial velocities are derived from the He I 2.112 µm line complex and vary regularly with a period of 19.45 days, indicating that the star is most likely an eclipsing binary. Under various assumptions, we are able to derive a mass of ∼50 M☉for each component.

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Journal keyword(s): Stars: Binaries: Eclipsing - Galaxy: Center - Stars: Early-Type

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 * eta Car s*b 10 45 03.545808 -59 41 03.95124 6.37 7.03 6.48 6.123 4.41 LBV 2543 0
2 V* V606 Cen SB* 13 21 36.2793645408 -60 31 14.749471344   9.82 9.66 9.78   B1/2Ib/II 62 0
3 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
4 GCIRS 34W WR* 17 45 39.73 -29 00 26.6           Ofpe/WN9 63 0
5 GCIRS 16NW WR* 17 45 40.0451 -29 00 26.847           Ofpe/WN9 144 0
6 GCIRS 33E WR* 17 45 40.0941 -29 00 31.213           Ofpe/WN9 59 0
7 GCIRS 16C WR* 17 45 40.12 -29 00 27.6           Ofpe/WN9 197 1
8 GCIRS 16SW WR* 17 45 40.1245 -29 00 29.018           Ofpe/WN9 167 0
9 GCIRS 16NE WR* 17 45 40.26 -29 00 27.2           Ofpe/WN9 156 0
10 [FMM95] 3 s*b 17 46 15.240 -28 50 03.58           LBV 151 1

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