2009ApJS..181..238C

Query : 2009ApJS..181..238C

2009ApJS..181..238C - Astrophys. J., Suppl. Ser., 181, 238-243 (2009/March-0)

Refined orbital solution and quiescent variability in the black hole transient GS 1354-64 (= BW cir).

CASARES J., OROSZ J.A., ZURITA C., SHAHBAZ T., CORRAL-SANTANA J.M., McCLINTOCK J.E., GARCIA M.R., MARTINEZ-PAIS I.G., CHARLES P.A., FENDER R.P. and REMILLARD R.A.

Abstract (from CDS):

In Casares et al. we presented the first radial velocity curve of the companion star to BW Cir which demonstrates the presence of a black hole in this historical X-ray transient. But these data were affected by aliasing and two possible periods at 2.5445 days and 2.5635 days were equally possible. Here we present new spectroscopic data that enable us to break the 1-year aliasing and confirm 2.5445 days as the correct orbital period. We also present R-band photometry over 14 years, which reveals the presence of important flaring activity dominating the light curves.

Abstract Copyright: ∼

Journal keyword(s): accretion, accretion disks - binaries: close - stars: individual: BW Cir = GS 1354-64 - X-rays: binaries

Nomenclature: Fig.1, Table 1: [COZ2009] A (Nos A-E).

Simbad objects: 13

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Number of rows : 13
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 1A 0620-00 HXB 06 22 44.5423857312 -00 20 44.290460544           K3V-K7V 1144 0
2 HD 62351 ** 07 42 58.94168 -17 03 41.7813   9.06 8.71 7.42   G5/6IV 46 0
3 V* KV UMa HXB 11 18 10.7930420496 +48 02 12.314730120           K5V-M1V 865 0
4 * o Vir a2* 13 34 07.9312445507 +03 39 32.288960317 4.96 4.96 4.94 4.86 4.89 ApEuCrSr 356 0
5 [COZ2009] D * 13 58 03.9537833568 -64 44 02.045747076   20.104 18.327 17.361 16.428 ~ 2 0
6 [COZ2009] A * 13 58 05.3948235768 -64 44 22.942715928   20.265 18.482 17.546 16.722 ~ 1 0
7 [COZ2009] C * 13 58 06.8853914880 -64 43 59.988431532   20.543 18.994 18.113 17.375 ~ 1 0
8 [COZ2009] B * 13 58 07.70 -64 44 07.3   19.815 18.642 17.936 17.308 ~ 1 0
9 V* BW Cir HXB 13 58 09.7227337579 -64 44 05.257858491           ~ 256 0
10 [COZ2009] E * 13 58 12.3080752200 -64 44 05.594029188   19.528 18.284 17.570 16.900 ~ 1 0
11 X Cen X-2 X 14 00 28.20 -64 47 35.6           ~ 63 1
12 V* V2107 Oph HXB 17 08 14.5085716774 -25 05 30.159687978           K3V-K7V 235 0
13 V* V404 Cyg HXB 20 24 03.8247037434 +33 52 01.961154861           G9/K0III/V 1370 0

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