Constraining the mass of Galactic black hole GX 339-4

H. Sreehari1,2*, N. Iyer1,2 and Anuj Nandi2
1Space Astronomy Group, ISRO Satellite Center, Marathahalli, Bangalore
2Department of Physics, Indian Institute of Science, Mathikere, Bangalore

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Abstract

Observations of Galactic black hole candidates during their outburst phases have revealed Quasi-Periodic Oscillations (QPOs) and their dependence on the spectral parameters. We used the 2010 outburst data of GX 339-4 from Rossi X-ray Timing Explorer (RXTE) and modeled it based on evolution of QPO frequencies and spectro-temporal correlation to constrain the mass of the compact object.

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Keywords : accretion – black hole physics – stars: individual:GX 339-4