1999MNRAS.309..421S

Query : 1999MNRAS.309..421S

1999MNRAS.309..421S - Mon. Not. R. Astron. Soc., 309, 421-429 (1999/October-3)

The optical counterparts to Be/X-ray binaries in the Magellanic Clouds.

STEVENS J.B., COE M.J. and BUCKLEY D.A.H.

Abstract (from CDS):

The fields of eight X-ray sources in the Magellanic Clouds believed to be Be/X-ray binaries have been searched for possible Be-star counterparts. BVRc and Hα CCD imaging was employed to identify early-type emission stars through colour indices and Hα fluxes. Spectroscopy of five sources confirms the presence of Hα emission in each case. Based on the positional coincidence of emission-line objects with the X-ray sources, we identify Be-star counterparts to the ROSAT sources RX J0032.9-7348, RX J0049.1-7250, RX J0054.9-7226 and RX J0101.0-7206, and to the recently discovered ASCA source AX J0051-722. We confirm the Be star nature of the counterpart to the HEAO1 source H0544-66. In the field of the ROSAT source RX J0051.8-7231 we find that there are three possible counterparts, each showing evidence for Hα emission. We find a close double in the error circle of the EXOSAT source EXO 0531.1-6609, each component of which could be a Be star associated with the X-ray source.

Abstract Copyright: 1999, Royal Astronomical Society

Journal keyword(s): binaries: general - stars: emission-line, Be - pulsars: general - Magellanic Clouds - infrared: stars - X-rays: stars

Nomenclature: Figs 1, 2: [SCB99b] RX J0032.9-7348 N (Nos 1-3), [SCB99b] RX J0049.1-7250 N (Nos 1-2), [SCB99b] RX J0051.8-7231 N (Nos 1-2), [SCB99b] RX J011.0-7206 N (Nos 1-3), [SCB99b] RX J0101.0-7206 N (Nos 1-3), [SCB99b] EXO 0531.1-6609 N (Nos 1-2), [SCB99b] H 0544-665 N (No. 1).

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

CDS comments: Text and Fig.1: RX J0101.0-7321 misprint for RX J0101.0-7206 (see T.1). Fig.1(h): [JBD79] H 0544-665 1.

Simbad objects: 17

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Number of rows : 17
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 2dFS 50 * 00 32 53.5726196304 -73 48 32.136534288 14.01 15.50 15.24   15.12 B0.5(V) 4 0
2 RX J0032.9-7348 HXB 00 32 56.1 -73 48 19           ~ 15 0
3 RX J0049.0-7250 HXB 00 49 03.35 -72 50 52.4   17.01 16.898   16.686 B3:V 56 0
4 [MA93] 413 HXB 00 50 56.9992401408 -72 13 34.582439136   14.97 15.05     B0.5III-V 66 0
5 AzV 102 HXB 00 51 53.1358981896 -72 31 48.721904580 13.66 14.79 14.38   14.40 O9.7V:ne 80 0
6 AzV 111 Em* 00 51 55.8831704592 -72 32 03.591345408   13.8 13.933   13.963 B0II 17 0
7 [SCB99b] RX J0051.8-7231 1 * 00 51 56.7 -72 31 29           ~ 3 0
8 LIN 198 HXB 00 52 05.6251611744 -72 26 04.228773036 13.86 14.91 14.927 14.91 14.794 B0-5(II)e 187 0
9 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
10 [MA93] 810 HXB 00 54 56.1754603176 -72 26 47.859057060 14.17 15.24 15.28   15.327 O9V 79 0
11 [MA93] 1240 HXB 01 01 02.8880678424 -72 06 58.964665824   15.68 15.757 15.52 15.576 B0-B2III-V 50 0
12 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
13 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
14 RX J0531.2-6609 HXB 05 31 13.3008 -66 07 05.006     14.4     B0.7Ve 55 1
15 X LMC X-4 HXB 05 32 49.5556042296 -66 22 13.202721768   13.9 14.0 14.290   O8III 714 0
16 1RXS J054450.0-663445 HXB 05 44 15.4999 -66 33 49.999   15.2 15.4     B0Ve 17 0
17 [JBD79] H 0544-665 1 * ~ ~           ~ 1 0

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