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

被引:22
作者
Haberl, F [1 ]
Dennerl, K [1 ]
Pietsch, W [1 ]
机构
[1] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany
来源
ASTRONOMY & ASTROPHYSICS | 2003年 / 406卷 / 02期
关键词
galaxies : individual : LMC; ISM : supernova remnants; quasars : general; X-rays : galaxies; X-rays : stars; stars : neutron;
D O I
10.1051/0004-6361:20030609
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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 LMC4 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 B similar to 18 mag. From the three previously known HMXBs the Be/X-ray binary EXO053109-6609.2 was the brightest source in the field, allowing a more detailed analysis of its X-ray spectrum and pulse profile. During the pulse EXO053109-6609.2 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 RXJ0529.8-6556 and a possible period of 272 s is discovered from XMMUJ053011.2-655122. 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 LMC4.
引用
收藏
页码:471 / 481
页数:11
相关论文
共 40 条
[1]   Proper motion of the Large Magellanic Cloud using QSOs as an inertial reference system [J].
Anguita, C ;
Loyola, P ;
Pedreros, MH .
ASTRONOMICAL JOURNAL, 2000, 120 (02) :845-854
[2]  
[Anonymous], ACCRETION DRIVEN STE
[3]   Imaging performance of the XMM-Newton X-ray telecopes [J].
Aschenbach, B ;
Briel, U ;
Haberl, F ;
Bräuninger, H ;
Burkert, W ;
Oppitz, A ;
Gondoin, P ;
Lumb, D .
X-RAY OPTICS, INSTRUMENTS, AND MISSIONS III, 2000, 4012 :731-739
[4]   The XMM-Newton serendipitous survey -: II.: First results from the AXIS high galactic latitude medium sensitivity survey [J].
Barcons, X ;
Carrera, FJ ;
Watson, MG ;
McMahon, RG ;
Aschenbach, B ;
Freyberg, MJ ;
Page, K ;
Page, MJ ;
Roberts, TP ;
Turner, MJL ;
Barret, D ;
Brunner, H ;
Ceballos, MT ;
Della Ceca, R ;
Guillout, P ;
Hasinger, G ;
Maccacaro, T ;
Mateos, S ;
Motch, C ;
Negueruela, I ;
Osborne, JP ;
Pérez-Fournon, I ;
Schwope, A ;
Severgnini, P ;
Szokoly, GP ;
Webb, NA ;
Wheatley, PJ ;
Worrall, DM .
ASTRONOMY & ASTROPHYSICS, 2002, 382 (02) :522-536
[5]  
BRUNNER H, 1987, THESIS U TUBINGEN
[6]   Temporal analysis of EXO 0531-66 in outburst [J].
Burderi, L ;
Di Salvo, T ;
Robba, NR ;
Del Sordo, S ;
Santangelo, A ;
Segreto, A .
ASTROPHYSICAL JOURNAL, 1998, 498 (02) :831-836
[7]   Supernova remnants in OB associations [J].
Chu, YH .
ASTRONOMICAL JOURNAL, 1997, 113 (05) :1815-1832
[8]  
Dennerl K., 1996, Rontgenstrahlung from the Universe. International Conference on X-Ray Astronomy and Astrophysics. Conference Proceedings (MPE Report 263), P131
[9]   H I IN THE GALAXY [J].
DICKEY, JM ;
LOCKMAN, FJ .
ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, 1990, 28 :215-261
[10]   Discovery of four X-ray quasars behind the Large Magellanic Cloud [J].
Dobrzycki, A ;
Groot, PJ ;
Macri, LM ;
Stanek, KZ .
ASTROPHYSICAL JOURNAL, 2002, 569 (01) :L15-L18