2008A&A...485..177H


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.20CEST14:52:29

2008A&A...485..177H - Astronomy and Astrophysics, volume 485, 177-181 (2008/7-1)

XMM-Newton observations of the Small Magellanic Cloud: XMMUJ004814.1-731003, a 25.55 s Be/X-ray binary pulsar.

HABERL F., EGER P., PIETSCH W., CORBET R.H.D. and SASAKI M.

Abstract (from CDS):

To investigate candidates for Be/X-ray binaries in the Small Magellanic Cloud (SMC), we observed a region around the emission nebula N19 with XMM-Newton in October 2006. We analysed the EPIC data of the detected point sources to derive their spectral and temporal characteristics. We detected X-ray pulsations with a period of 25.550(2)s from the second-brightest source in the field, which we designate XMMUJ004814.1-731003. The X-ray spectrum is well modelled by a highly absorbed (NH=5x1022cm–2) power-law with photon index 1.33±0.27. The precise X-ray position allows us to identify a Be star as the optical counterpart. XMMUJ004814.1-731003 is located within the error circle of the transient ASCA source AXJ0048.2-7309, but its position is inconsistent with that of the proposed optical counterpart of AXJ0048.2-7309 (the emission line star [MA93]215). It remains unclear if XMMUJ004814.1-731003 is associated with AXJ0048.2-7309. XMMUJ004814.1-731003 might be identical to an RXTE pulsar that was discovered with a period of 25.5s, but which is listed as a 51s pulsar in the recent literature.

Abstract Copyright:

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

Simbad objects: 7

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Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 LHA 115-N 19 HII 00 48 06 -73 08.7           ~ 59 0
2 AX J0048.2-7309 HXB 00 48 14.0 -73 09 39     15.3     Be 8 0
3 SXP 25.5 HXB 00 48 14.104 -73 10 04.52 15.06 15.56 15.30   15.51 B1.5e 19 0
4 [MA93] 215 Em* 00 48 17.3238011160 -73 09 21.879472131     15.7     ~ 4 0
5 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9091 1
6 SXP 6.85 HXB 01 02 53.3181214914 -72 44 35.166325803   14.51 14.59     O9.5-B0IV-V 54 0
7 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5375 1

    Equat.    Gal    SGal    Ecl

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2019.10.20-14:52:29

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