Predictions for the reverberating spectral line signal from a newly formed black hole accretion disk: case of tidal disruption flares

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F15%3A00445289" target="_blank" >RIV/67985815:_____/15:00445289 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/0004-637X/807/1/89" target="_blank" >http://dx.doi.org/10.1088/0004-637X/807/1/89</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0004-637X/807/1/89" target="_blank" >10.1088/0004-637X/807/1/89</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Predictions for the reverberating spectral line signal from a newly formed black hole accretion disk: case of tidal disruption flares

Popis výsledku v původním jazyce

Tidal disruption events (TDEs) can be perfect probes of dormant supermassive black holes in normal galaxies. During the rising phase, the accretion luminosity can increase by orders of magnitude in several weeks, and the emergent ionizing radiation illuminates the fresh accretion flow. In this paper, we simulated the evolution of the expected spectral line profile of iron due to such a flare by using a ray-tracing code with effects of general relativity taken into account. We found that the time-dependent profile changes significantly with black hole spin, inclination angle with respect to the black hole equatorial plane, and the expansion velocity of the ionization front. At low values of spin, a ?loop feature appears in the line profile versus time plot when the inclination is no less than 30° and the expansion velocity vexp is no less than half the speed of light, owing to a shadow in the emission of the truncated disk. Our results demonstrate the importance of searching for X-ray s

Název v anglickém jazyce

Predictions for the reverberating spectral line signal from a newly formed black hole accretion disk: case of tidal disruption flares

Popis výsledku anglicky

Tidal disruption events (TDEs) can be perfect probes of dormant supermassive black holes in normal galaxies. During the rising phase, the accretion luminosity can increase by orders of magnitude in several weeks, and the emergent ionizing radiation illuminates the fresh accretion flow. In this paper, we simulated the evolution of the expected spectral line profile of iron due to such a flare by using a ray-tracing code with effects of general relativity taken into account. We found that the time-dependent profile changes significantly with black hole spin, inclination angle with respect to the black hole equatorial plane, and the expansion velocity of the ionization front. At low values of spin, a ?loop feature appears in the line profile versus time plot when the inclination is no less than 30° and the expansion velocity vexp is no less than half the speed of light, owing to a shadow in the emission of the truncated disk. Our results demonstrate the importance of searching for X-ray s

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astrophysical Journal

ISSN

0004-637X

e-ISSN

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Svazek periodika

807

Číslo periodika v rámci svazku

89

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

1-12

Kód UT WoS článku

000358945200089

EID výsledku v databázi Scopus

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