Observational phenomena related to primordial Kerr superspinars

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F12%3A%230004521" target="_blank" >RIV/47813059:19240/12:#0004521 - isvavai.cz</a>

Result on the web

<a href="http://iopscience.iop.org/0264-9381/29/6/065002/pdf/0264-9381_29_6_065002.pdf" target="_blank" >http://iopscience.iop.org/0264-9381/29/6/065002/pdf/0264-9381_29_6_065002.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0264-9381/29/6/065002" target="_blank" >10.1088/0264-9381/29/6/065002</a>

Result language

angličtina

Original language name

Observational phenomena related to primordial Kerr superspinars

Original language description

String theory indicates the existence of primordial Kerr superspinars, extremely compact objects with exterior described by the Kerr naked-singularity geometry. The primordial superspinars have to be converted to a black hole due to accretion, but they could survive to the era of high-redshift quasars. We discuss observational phenomena caused by the primordial Kerr superspinars in this era, considering the properties of corotating Keplerian accretion discs orbiting such superspinars and the optical phenomena modified by their presence. The potential well around a near-extreme superspinar with spin a very close to the extreme black hole value a = 1 is very deep so that the efficiency of the accretion process reaches 157.7%, influencing thus significantly the spectral continuum of corotating Keplerian discs and giving a signature of near-extreme superspinars. Such superspinars can also serve as an efficient accelerator for extremely high-energy collisions. Phenomena enabling a clear dis

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

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Continuities

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

6

Country of publishing house

GB - UNITED KINGDOM

Number of pages

27

Pages from-to

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UT code for WoS article

000301175600003

EID of the result in the Scopus database

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