Counter-rotating Keplerian discs around Kerr superspinars

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F12%3A%230004568" target="_blank" >RIV/47813059:19240/12:#0004568 - isvavai.cz</a>

Result on the web

<a href="http://iopscience.iop.org/0264-9381/29/2/025008/pdf/0264-9381_29_2_025008.pdf" target="_blank" >http://iopscience.iop.org/0264-9381/29/2/025008/pdf/0264-9381_29_2_025008.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0264-9381/29/2/025008" target="_blank" >10.1088/0264-9381/29/2/025008</a>

Result language

angličtina

Original language name

Counter-rotating Keplerian discs around Kerr superspinars

Original language description

The appearance of corotating Keplerian discs orbiting Kerr superspinars has been shown to be strongly dependent on the value of the superspinar spin in both their shape and frequency shift profile, demonstrating clear distinctions from the corotating discs around black holes. However, it has to be modified in the innermost parts of the disc by the self-illumination effect caused by the photons trapped in the strong gravitational field near the superspinars with spin a < 9. Here we demonstrate that self-illumination is irrelevant for counter-rotating Keplerian discs orbiting in the field of all Kerr superspinars since such discs are located at the regions where none of the radiated photons can be trapped. Therefore, the results obtained by considering the escaping photons only are quite relevant for the appearance of the counter-rotating Keplerian discs orbiting Kerr superspinars. The appearance and spectral continuum of such discs differ from those of counter-rotating discs in the fiel

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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

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

Name of the periodical

Classical and Quantum Gravity

ISSN

0264-9381

e-ISSN

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Volume of the periodical

29

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

22

Pages from-to

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UT code for WoS article

000298676600008

EID of the result in the Scopus database

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