Deep XMM-Newton observation of a northern LMC field: I. Selected X-ray sources

Details Deep XMM-Newton observation of a northern LMC field: I. Selected X-ray sources Deep XMM-Newton observation of a northern LMC field: I. Selected X-ray sources

2002-12-13

arxiv.org/abs/astro-ph/0212319v1

Astron.Astrophys. 406 (2003) 471-482

Astronomy and Astrophysics

Astrophysics

11 pages, LaTex, 6 figures, submitted to A&A

Scientific paper

10.1051/0004-6361:20030609

First results from a deep XMM-Newton observation of a field in the Large Magellanic Cloud (LMC) near the northern rim of the supergiant shell LMC 4 are presented. Spectral and temporal analyses of a sample of selected X-ray sources yielded two new candidates for supernova remnants, a supersoft X-ray source and a likely high mass X-ray binary (HMXB) pulsar. From the fourteen brightest sources up to ten are active galactic nuclei in the background of the galaxy which can be used as probes for the interstellar medium in the LMC. From the three previously known HMXBs the Be/X-ray binary EXO 053109-6609.2 was the brightest source in the field, allowing a more detailed analysis of its X-ray spectrum and pulse profile. During the pulse EXO 053109-6609.2 shows eclipses of the X-ray emitting areas with increased photo-electric absorption before and after the eclipse. The detection of X-ray pulsations with a period of 69.2 s is confirmed for RX J0529.8-6556 and a possible period of 272 s is discovered from XMMU J053011.2-655122. The results are discussed with respect to individual sources as well as in the view of source population studies in the vicinity of the supergiant shell LMC 4.

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