A Long Look at the Be/X-Ray Binaries of the Small Magellanic Cloud

Details A Long Look at the Be/X-Ray Binaries of the Small Magellanic Cloud A Long Look at the Be/X-Ray Binaries of the Small Magellanic Cloud

2008-02-15

arxiv.org/abs/0802.2118v2

Astronomy and Astrophysics

Astrophysics

28 pages, 65 figures, 3 tables. Accepted for publication in The Astrophysical Journal Supplement

Scientific paper

10.1086/587743

We have monitored 41 Be/X-ray binary systems in the Small Magellanic Cloud over ~9 years using PCA-RXTE data from a weekly survey program. The resulting light curves were analysed 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: SXP46.4, SXP89.0 and SXP165 were found to be misidentifications of SXP46.6, SXP91.1 and SXP169, respectively.

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