Monitoring and Discovering X‐ray Pulsars in the Small Magellanic Cloud
作者:
R. H. D. Corbet,
S. Laycock,
M. J. Coe,
F. E. Marshall,
C. B. Markwardt,
期刊:
AIP Conference Proceedings
(AIP Available online 1904)
卷期:
Volume 714,
issue 1
页码: 337-341
ISSN:0094-243X
年代: 1904
DOI:10.1063/1.1781051
出版商: AIP
数据来源: AIP
摘要:
Regular monitoring of the SMC with RXTE has revealed a huge number of X‐ray pulsars. Together with discoveries from other satellites at least 45 SMC pulsars are now known. One of these sources, a pulsar with a period of approximately 7.8 seconds, was first detected in early 2002 and since discovery it has been found to be in outburst nine times. The outburst pattern clearly shows a period of 45.1 ± 0.4 d which is thought to be the orbital period of this system. Candidate outburst periods have also been obtained for nine other pulsars and continued monitoring will enable us to confirm these. This large number of pulsars, all located at approximately the same distance, enables a wealth of comparative studies. In addition, the large number of pulsars found (which vastly exceeds the number expected simply by scaling the relative mass of the SMC and the Galaxy) reveals the recent star formation history of the SMC which has been influenced by encounters with both the LMC and the Galaxy. © 2004 American Institute of Physics
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