Emission lines from X-ray illuminated accretion disc in black hole binaries
TLDR
In this article, the authors studied the line spectra in black hole X-ray binaries for different accretion flow parameters including its geometry and the varying range of model parameters captures maximum possible observational features.Abstract:
X-ray flux from the inner hot region around central compact object in a binary system illuminates the upper surface of an accretion disc and it behaves like a corona. This region can be photoionised by the illuminating radiation, thus can emit different emission lines. We study those line spectra in black hole X-ray binaries for different accretion flow parameters including its geometry. The varying range of model parameters captures maximum possible observational features. We also put light on the routinely observed Fe line emission properties based on different model parameters, ionization rate, and Fe abundances. We find that the Fe line equivalent width $W_{\rm E}$ decreases with increasing disc accretion rate and increases with the column density of the illuminated gas. Our estimated line properties are in agreement with observational signatures.read more
Citations
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The Spin Measurement of MAXI J0637-430: a Black Hole Candidate with High Disk Density
TL;DR: In this article , the spectral properties of MAXI J0637-430 were studied by using the archived NuSTAR data and Swift/XRT data and the fitting results showed an extreme supersolar iron abundance.
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Global Understanding of Accretion and Ejection around Black Holes
TL;DR: In this article , the authors studied the dynamics of ejection around compact objects, mainly around black holes, both in low mass, and supermassive, in the presence of a supermassive black hole.
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