Abstract
Abstract
We present the results of a broadband (0.5–78 keV) X-ray spectral study of the persistent Galactic black hole X-ray binary GRS 1758–258 observed simultaneously by Swift and NuSTAR. Fitting with an absorbed power-law model revealed a broad Fe line and reflection hump in the spectrum. We used different flavors of the relativistic reflection model for the spectral analysis. All models indicate the spin of the black hole in GRS 1758–258 is >0.92. The source was in the low hard state during the observation, with the hot electron temperature of the corona estimated to be kT
e
∼ 140 keV. The black hole is found to be accreting at ∼1.5% of the Eddington limit during the observation, assuming the black hole mass of 10 M
⊙ and distance of 8 kpc.
Funder
Ministry of Science and Technology, Taiwan
Publisher
American Astronomical Society
Subject
Space and Planetary Science,Astronomy and Astrophysics
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献