SWIFT J1753.5-0127: orbital period, high-frequency timing analysis and multi-band observations

被引:0
|
作者
Durant, Martin [1 ]
Shahbaz, Tariq [1 ]
Zurita, Cristina [1 ]
Torres, Manuel A. P. [1 ]
机构
[1] Inst Astrofis Canarias, C Via Lactea S-N, E-38205 San Cristobal la Laguna, Tenerife, Spain
关键词
black hole candidate; high-frequency timing; multi-band photometry;
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中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have conducted an extensive observational campaign of SWIFT J1753.5-0127 over the last year, since its bright our-burst episode in 2005. Using long time baseline optical photometry, we have found a new period suggestive of orbital modulation with a period of 3.2 h, we have simultaneous multi-band photometry, and high-frequency multi-band photometry from ULTRACAM. In the latter data, we find evidence for a broad quasi-periodic oscillation in the g' and r' bands centred on a period of similar to 25 s and a narrower one of period similar to 12 s.
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页码:256 / +
页数:2
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