Volume 406, Number 2, August I 2003
|Page(s)||471 - 481|
|Published online||17 November 2003|
Deep XMM-Newton observation of a northern LMC field I. Selected X-ray sources *
Max-Planck-Institut für extraterrestrische Physik, Giessenbachstraße, 85748 Garching, Germany
Corresponding author: F. Haberl, firstname.lastname@example.org
Accepted: 14 April 2003
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 ten exhibit power-law X-ray spectra with slopes compatible to those of active galactic nuclei (AGN) in the background of the LMC. Their AGN nature is further supported by the lack of optical counterparts brighter than mag. From the three previously known HMXBs the Be/X-ray binary was the brightest source in the field, allowing a more detailed analysis of its X-ray spectrum and pulse profile. During the pulse 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 and a possible period of 272 s is discovered from . 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.
Key words: galaxies: individual: LMC / ISM: supernova remnants / quasars: general / X-rays: galaxies / X-rays: stars – stars: neutron
© ESO, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.