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Silhouette and spectral line profiles in the special modification of the Kerr black hole geometry generated by quintessential fields

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F16%3AN0000027" target="_blank" >RIV/47813059:19240/16:N0000027 - isvavai.cz</a>

  • Result on the web

    <a href="https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-016-4511-0" target="_blank" >https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-016-4511-0</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1140/epjc/s10052-016-4511-0" target="_blank" >10.1140/epjc/s10052-016-4511-0</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Silhouette and spectral line profiles in the special modification of the Kerr black hole geometry generated by quintessential fields

  • Original language description

    We study optical effects in quintessential Kerr black hole spacetimes corresponding to the limiting case of the equation-of-state parameter $omega_q= - 1/3$ of the quintessence. In dependence on the dimensionless quintessential field parameter $c$, we determine the black hole silhouette and the spectral line profiles of Keplerian disks generated in this special quintessential Kerr geometry, representing an extension of the general modifications of the Kerr geometry introduced recently by Ghasemi-Nodehi and Bambi (Eur. Phys. J. C 56:#290, 2016). We demonstrate that due to the influence of the parameter $c$, the silhouette is almost homogeneously enlarged, and the spectral line profiles are redshifted with almost conserved shape.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BN - Astronomy and celestial mechanics, astrophysics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GB14-37086G" target="_blank" >GB14-37086G: Albert Einstein Center for Gravitation and Astrophysics</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2016

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    European Physical Journal C

  • ISSN

    1434-6044

  • e-ISSN

  • Volume of the periodical

    76

  • Issue of the periodical within the volume

    11

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    8

  • Pages from-to

    '643-1'-'643-8'

  • UT code for WoS article

    000394382800003

  • EID of the result in the Scopus database

    2-s2.0-84996477090