title   
  

Discovery of the orbital period of swift J1626.6−5156

Baykal, Altan and Göğüş, Ersin and İnam, Sıtkı Çağdaş and Belloni, Tomaso (2009) Discovery of the orbital period of swift J1626.6−5156. (Submitted)

[img]PDF - Repository staff only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
235Kb

Abstract

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 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 .

Item Type:Article
Subjects:UNSPECIFIED
ID Code:13623
Deposited By:Ersin Göğüş
Deposited On:25 Dec 2009 14:46
Last Modified:25 Dec 2009 14:46

Repository Staff Only: item control page