Profiled spectral lines generated in the field of Kerr superspinars

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F13%3A%230004622" target="_blank" >RIV/47813059:19240/13:#0004622 - isvavai.cz</a>

Výsledek na webu

<a href="http://iopscience.iop.org/1475-7516/2013/04/005/" target="_blank" >http://iopscience.iop.org/1475-7516/2013/04/005/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1475-7516/2013/04/005" target="_blank" >10.1088/1475-7516/2013/04/005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Profiled spectral lines generated in the field of Kerr superspinars

Popis výsledku v původním jazyce

String Theory suggests existence of primordial Kerr superspinars, extremely compact objects with external spacetime described by the Kerr naked singularity geometry. The primordial Kerr superspinars have to be converted to a near-extreme black hole due to accretion, but they could survive to the era of highly redshifted quasars. We study the shape of the profiled spectral lines generated by radiating rings or the innermost parts of Keplerian discs orbiting the Kerr superspinars. Influence of the superspinar surface location on the profiled lines is also considered. We demonstrate strong difference of the character of the profiled lines generated by radiating rings for all values of the superspinar spin and all values of the inclination angles of the observer when compared to those generated in the field of Kerr black holes. For small and mediate inclination angles there are large quantitative differences in the extension and position of the lines. For large inclination angles even stro

Název v anglickém jazyce

Profiled spectral lines generated in the field of Kerr superspinars

Popis výsledku anglicky

String Theory suggests existence of primordial Kerr superspinars, extremely compact objects with external spacetime described by the Kerr naked singularity geometry. The primordial Kerr superspinars have to be converted to a near-extreme black hole due to accretion, but they could survive to the era of highly redshifted quasars. We study the shape of the profiled spectral lines generated by radiating rings or the innermost parts of Keplerian discs orbiting the Kerr superspinars. Influence of the superspinar surface location on the profiled lines is also considered. We demonstrate strong difference of the character of the profiled lines generated by radiating rings for all values of the superspinar spin and all values of the inclination angles of the observer when compared to those generated in the field of Kerr black holes. For small and mediate inclination angles there are large quantitative differences in the extension and position of the lines. For large inclination angles even stro

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

<a href="/cs/project/GA202%2F09%2F0772" target="_blank" >GA202/09/0772: Aktuální problémy gravitace, obecné relativity a relativistické astrofyziky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS

ISSN

1475-7516

e-ISSN

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Svazek periodika

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Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

27

Strana od-do

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Kód UT WoS článku

000318556200005

EID výsledku v databázi Scopus

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