About: Beyond the standard model of the disc-line spectral profiles from black hole accretion discs

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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). 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). (en)
Title	Beyond the standard model of the disc-line spectral profiles from black hole accretion discs Beyond the standard model of the disc-line spectral profiles from black hole accretion discs (en)
skos:prefLabel	Beyond the standard model of the disc-line spectral profiles from black hole accretion discs Beyond the standard model of the disc-line spectral profiles from black hole accretion discs (en)
skos:notation	RIV/67985815:_____/14:00442447!RIV15-GA0-67985815
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GC13-00070J)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Dovčiak, Michal Sochora, Vjačeslav Karas, Vladimír Svoboda, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Astronomický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	5143
http://linked.open...ai/riv/idVysledku	RIV/67985815:_____/14:00442447
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	accretion discs; black hole physics; galactic nuclei (en)
http://linked.open.../riv/klicoveSlovo	black hole physics accretion discs galactic nuclei
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[D7DF5BB07048]
http://linked.open...i/riv/nazevZdroje	Acta polytechnica
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Accretion process in strong gravity of Galactic Center
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	54
http://linked.open...iv/tvurceVysledku	Dovčiak, Michal Karas, Vladimír Sochora, Vjačeslav Svoboda, Jiří
issn	1210-2709
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.14311/AP.2014.54.0301

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