2014MNRAS.444.3571S


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.21CET11:25:44

2014MNRAS.444.3571S - Mon. Not. R. Astron. Soc., 444, 3571-3580 (2014/November-2)

Discovery of SXP 265, a Be/X-ray binary pulsar in the Wing of the Small Magellanic Cloud.

STURM R., HABERL F., VASILOPOULOS G., BARTLETT E.S., MAGGI P., RAU A., GREINER J. and UDALSKI A.

Abstract (from CDS):

We identify a new candidate for a Be/X-ray binary in the XMM-Newton slew survey and archival Swift observations that is located in the transition region of the Wing of the Small Magellanic Cloud and the Magellanic Bridge. We investigated and classified this source with follow-up XMM-Newton and optical observations. We model the X-ray spectra and search for periodicities and variability in the X-ray observations and the Optical Gravitational Lensing Experiment I-band light curve. The optical counterpart has been classified spectroscopically, with data obtained at the South African Astronomical Observatory 1.9m telescope, and photometrically, with data obtained using the Gamma-ray Burst Optical Near-ir Detector at the MPG 2.2m telescope. The X-ray spectrum is typical of a high-mass X-ray binary with an accreting neutron star. We detect X-ray pulsations, which reveal a neutron-star spin period of Ps = (264.516±0.014)s. The source likely shows a persistent X-ray luminosity of a few 1035erg/s and in addition type-I outbursts that indicate an orbital period of ∼ 146d. A periodicity of 0.867d, found in the optical light curve, can be explained by non-radial pulsations of the Be star. We identify the optical counterpart and classify it as a B1-2II-IVe star. This confirms SXP 265 as a new Be/X-ray binary pulsar originating in the tidal structure between the Magellanic Clouds.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): stars: emission-line, Be - stars: neutron - pulsars: individual: SXP 265 - galaxies: individual: Small Magellanic Cloud - galaxies: stellar content - X-rays: binaries

Simbad objects: 17

goto Full paper

goto View the reference in ADS

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 - 2020
#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9230 1
2 NAME SMC Bar PoG 01 05 -72.6           ~ 196 0
3 [MA93] 1592 HXB 01 06 32.969 -73 15 42.87   14.62 14.57 15.11 14.85 B0.5/1Ve 7 0
4 RX J0111.2-7317 HXB 01 11 08.5772485083 -73 16 46.307693953 14.40 15.42 15.52   15.29 B0.5-1Ve 70 0
5 [MA93] 1845 HXB 01 17 40.1628070528 -73 30 50.523954949 13.30 14.14 14.18   14.09 B1-3(II)e 50 0
6 AzV 503 HXB 01 21 40.6226060932 -72 57 30.906642600   14.23 14.3     B0-5(II)e 37 0
7 RX J0123.4-7321 HXB 01 23 27.4170599612 -73 21 22.241572271 14.48 15.39 15.45 15.42 15.4 B1-3(III) 8 0
8 SXP 1062 HXB 01 27 45.95 -73 32 56.3   14.32 14.36     B0.5(III)e 54 1
9 SXP 265 HXB 01 32 51.4608733705 -74 25 45.311165003           ~ 3 0
10 IGR J01572-7259 HXB 01 57 16.2115433388 -72 58 32.495816368   15.5   15.5   ~ 18 0
11 [DI91] 286 HXB 02 06 45.7 -74 27 46   14.7 14.75 15.2   B1III 8 0
12 RX J0209.6-7427 HXB 02 09 34.5370165010 -74 27 11.820291310     14.45     Be 10 0
13 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5498 1
14 NAME Magellanic Bridge HI 03 11 -77.5           ~ 320 1
15 LXP 169 Psr 05 07 55.38 -68 25 04.6           OB 7 0
16 [HP99] 946 Be* 05 20 30.9009 -69 31 54.999   14.41 14.40     O8e 48 0
17 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14544 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2014MNRAS.444.3571S and select 'bookmark this link' or equivalent in the popup menu


2020.02.21-11:25:44

© Université de Strasbourg/CNRS

    • Contact