A long look at the Be/X-ray binaries of the Small Magellanic Cloud

被引:71
作者
Galache, J. L. [1 ]
Corbet, R. H. D. [2 ]
Coe, M. J. [3 ]
Laycock, S. [1 ]
Schurch, M. P. E. [3 ]
Markwardt, C. [2 ]
Marshall, F. E. [2 ]
Lochner, J. [2 ]
机构
[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[2] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[3] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
基金
英国科学技术设施理事会;
关键词
galaxies : individual (Small Magellanic Cloud); pulsars : general; X-rays : binaries;
D O I
10.1086/587743
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have monitored 41 Be/X-ray binary systems in the Small Magellanic Cloud over similar to 9 yr using PCA RXTE data from a weekly survey program. The resulting light curves were analyzed in search of orbital modulations with the result that 10 known orbital ephemerides were confirmed and refined, while 10 new ones where determined. A large number of X-ray orbital profiles are presented for the first time, showing similar characteristics over a wide range of orbital periods. Lastly, three pulsars, SXP 46.4, SXP 89.0, and SXP 165, were found to be misidentifications of SXP 46.6, SXP 91.1, and SXP 169, respectively.
引用
收藏
页码:189 / 215
页数:27
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