Estimating the mass of IGR J17091-3624: statistical challenges and methods

N. Iyer1,2*, A. Nandi1 and S. Mandal3
1Space Astronomy Group, SSIF, ISRO Satellite Centre, Bangalore, India, 560037
2Dept. of Physics, Indian Institute of Science, Bangalore, India, 560012
3Indian Institute of Space Science and Technology, Trivandrum, India, 695547

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We use X-ray observational data from the 2011 outburst of black hole candidate IGR J17091-3624 to compute its mass. In this work we elaborate on the statistical methods used to obtain confidence intervals on our mass estimate. These methods can be used while employing similar techniques for determining mass of other black hole candidates as well.

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Keywords :X-rays: individual: IGR J17091-3624 – methods: statistical