beyond the standard model of the disc–line spectral profiles from black hole accretion discs

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ID: 191875
2014
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Abstract
The strong gravitational field of a black hole has distinct effects on the observed profile of a spectral line from an accretion disc near a black hole. The observed profile of the spectral line is broadened and skewed by a fast orbital motion and redshifted by a gravitational field. These effects can help us to constrain the parameters of a system with a black hole, both in active galactic nuclei and in a stellar-mass black hole. Here we explore the fact that an accretion disc emission can be mathematically imagined as a superposition of radiating accretion rings that extend from the inner edge to the outer rim of the disc, with some radially varying emissivity. In our work, we show that a characteristic double-horn profile of several radially confined (relatively narrow) accretion rings or belts could be recognized by the planned instruments onboard future satellites (such as the proposed ESA Large Observatory for X-ray Timing).
Reference Key
sochora2014actabeyond Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Vjaceslav Sochora;Vladimír Karas;Jirí Svoboda;Michal Dovciak
Journal the journal of nutrition
Year 2014
DOI
10.14311/AP.2014.54.0301
URL
https://ojs.cvut.cz/ojs/index.php/ap/article/view/2222
Keywords
engineering (general) civil engineering (general)

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