| Issue |
A&A
Volume 420, Number 3, June IV 2004
|
|
|---|---|---|
| Page(s) | L19 - L22 | |
| Section | Letters | |
| DOI | https://doi.org/10.1051/0004-6361:20040156 | |
| Published online | 04 June 2004 | |
Letter to the Editor
Two long-period X-ray pulsars detected in the SMC field around *
1
Max-Planck-Institut für extraterrestrische Physik, Giessenbachstraße, 85748 Garching, Germany
2
XMM-Newton Science Operations Centre, ESA, Villafranca del Castillo, PO Box 50727, 28080 Madrid, Spain
3
Laboratory for High Energy Astrophysics, Code 662, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
4
Universities Space Research Association
Corresponding author: F. Haberl, fwh@mpe.mpg.de
Received:
17
February
2004
Accepted:
30
April
2004
An XMM-Newton target of opportunity observation of the field around the transient 18.37 s
pulsar in the Small Magellanic Cloud (SMC) revealed two bright, long-period X-ray
pulsars in the EPIC data. A new pulsar, , with a pulse period of 
s
was discovered and 
s pulsations were detected from
(=CXOU J005455.6–724510), confirming the period found in Chandra data. We derive
X-ray positions of 
, 
and
, 
(J2000.0)
with an uncertainty of 0
2 utilizing optical identification with OGLE stars.
For both objects, the optical brightness and colours and the X-ray spectra are consistent
with Be/X-ray binary systems in the SMC.
Key words: galaxies: individual: Small Magellanic Cloud / stars: neutron / X-rays: binaries / X-rays: galaxies
© ESO, 2004
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