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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Name of the periodical

Astrophysical Journal

ISSN

0004-637X

e-ISSN

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Volume of the periodical

807

Issue of the periodical within the volume

89

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

1-12

UT code for WoS article

000358945200089

EID of the result in the Scopus database

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