On the Interplay Between Radial and Angular Reflection Emissivity from the Black Hole Accretion Disc
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F14%3A00429140" target="_blank" >RIV/67985815:_____/14:00429140 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/978-3-319-06761-2_57" target="_blank" >http://dx.doi.org/10.1007/978-3-319-06761-2_57</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-3-319-06761-2_57" target="_blank" >10.1007/978-3-319-06761-2_57</a>
Alternative languages
Result language
angličtina
Original language name
On the Interplay Between Radial and Angular Reflection Emissivity from the Black Hole Accretion Disc
Original language description
Accretion processes around relativistic compact objects, such as black holes or neutron stars, can be well studied through X-ray spectroscopy. The disc reflection spectra detected in observations of several active galactic nuclei and X-ray binaries in our and nearby galaxies suggest high steepness of the radial emissivity. This can be primarily caused by compactness of the illuminating radiation. In our recent paper [1], we showed that the measurement of the steep radial emissivity index might also be over-estimated by ignoring the radial ionisation structure and the proper angular-emissivity law, which is non-trivial in the fully relativistic regime. In this paper, we demonstrate the interplay of the angular and radial emissivity. Employing an improper angular emissivity in the reflection models leads to over-estimated values for the black-hole angular momentum and the radial-emissivity index (by about 10 %).
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Relativity and Gravitation, 100 Years after Einstein in Prague
ISBN
978-3-319-06760-5
ISSN
0930-8989
e-ISSN
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Number of pages
8
Pages from-to
415-422
Publisher name
Springer International Publishing
Place of publication
Cham
Event location
Prague
Event date
Jun 25, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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