THE ORBITAL PERIOD OF SWIFT J1626.6-5156

Date

2010-03-10

Author

Baykal, Altan
İNAM, SITKI ÇAĞDAŞ
Belloni, Tomaso

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We present the discovery of the orbital period of Swift J1626.6-5156. Since its discovery in 2005, the source has been monitored with Rossi X-Ray Timing Explorer, especially during the early stage of the outburst and into the X-ray modulating episode. Using a data span of similar to 700 days, we obtain the orbital period of the system as 132.9 days. We find that the orbit is close to a circular shape with an eccentricity 0.08, that is one of the smallest among Be/X-ray binary systems. Moreover, we find that the timescale of the X-ray modulations varied, which led to earlier suggestions of orbital periods at about a third and half of the orbital period of Swift J1626.6-5156.

Subject Keywords

Space and Planetary Science, Astronomy and Astrophysics

URI

https://hdl.handle.net/11511/46188

Journal

ASTROPHYSICAL JOURNAL

DOI

https://doi.org/10.1088/0004-637x/711/2/1306

Collections

Department of Physics, Article

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Citation Formats

A. Baykal, S. Ç. İNAM, and T. Belloni, “THE ORBITAL PERIOD OF SWIFT J1626.6-5156,” ASTROPHYSICAL JOURNAL, pp. 1306–1309, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46188.