Spectral signature of oscillating slender tori surrounding Kerr
black holes

J 2014

Spectral signature of oscillating slender tori surrounding Kerr black holes

ABRAMOWICZ, Marek, Pavel BAKALA, Gabriel TÖRÖK, Włodek KLUŹNIAK, G. P. MAZUR et. al.

Basic information

Original name

Spectral signature of oscillating slender tori surrounding Kerr black holes

Authors

ABRAMOWICZ, Marek, Pavel BAKALA, Gabriel TÖRÖK, Włodek KLUŹNIAK, G. P. MAZUR, Odele STRAUB and Frédéric H. VINCENT

Edition

Astronomy & Astrophysics, FR - Francouzská republika, 2014, 0004-6361

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Organization unit

Faculty of Philosophy and Science in Opava

DOI

http://dx.doi.org/10.1051/0004-6361/201323103

UT WoS

000333798000109

Keywords in English

accretion, accretion disks; black hole physics; relativistic processes

Links

EE2.3.20.0071, research and development project. GPP209/12/P740, research and development project.

Změněno: 7/4/2021 15:28, Mgr. Pavlína Jalůvková

Abstract

V originále

Context. Some microquasars exhibit millisecond quasi-periodic oscillations (QPO) that are most probably related to phenomena occuring in the immediate vicinity of central black holes. Oscillations of accretion tori have been proposed to model these QPOs.Aims. Here, we aim at determining the observable spectral signature of slender accretion tori surrounding Kerr black holes. We analyse the impact of the inclination and spin parameters on the power spectra. Methods. Ray-traced power spectra of slender tori oscillation modes are computed in the Kerr metric. Results. We show that the power spectral densities of oscillating tori are very sensitive to the inclination and spin parameters. This strong dependency of the temporal spectra on inclination and spin may lead to observable constraints of these parameters. Conclusions. This work goes a step further in the analysis of the oscillating torus QPO model. It is part of a long-term study that will ultimately lead to comparison with observed

Citovat

ABRAMOWICZ, Marek, Pavel BAKALA, Gabriel TÖRÖK, Włodek KLUŹNIAK, G. P. MAZUR, Odele STRAUB and Frédéric H. VINCENT. Spectral signature of oscillating slender tori surrounding Kerr black holes. Astronomy & Astrophysics. FR - Francouzská republika, 2014, vol. 563, March, p. "A109 - 1"-"A109 - 8", 8 pp. ISSN 0004-6361. Available from: https://dx.doi.org/10.1051/0004-6361/201323103.

@article{42726,
   author = {Abramowicz, Marek and Bakala, Pavel and Török, Gabriel and Kluźniak, Włodek and Mazur, G. P. and Straub, Odele and Vincent, Frédéric H.},
   article_location = {FR - Francouzská republika},
   article_number = {March},
   doi = {http://dx.doi.org/10.1051/0004-6361/201323103},
   keywords = {accretion, accretion disks; black hole physics; relativistic processes},
   language = {eng},
   issn = {0004-6361},
   journal = {Astronomy & Astrophysics},
   title = {Spectral signature of oscillating slender tori surrounding Kerr black holes},
   url = {http://www.aanda.org/articles/aa/abs/2014/03/aa23103-13/aa23103-13.html},
   volume = {563},
   year = {2014}
}

TY  - JOUR
ID  - 42726
AU  - Abramowicz, Marek - Bakala, Pavel - Török, Gabriel - Kluźniak, Włodek - Mazur, G. P. - Straub, Odele - Vincent, Frédéric H.
PY  - 2014
TI  - Spectral signature of oscillating slender tori surrounding Kerr black holes
JF  - Astronomy & Astrophysics
VL  - 563
IS  - March
SP  - "A109 - 1"-"A109 - 8"
EP  - "A109 - 1"-"A109 - 8"
SN  - 00046361
KW  - accretion, accretion disks
KW  - black hole physics
KW  - relativistic processes
UR  - http://www.aanda.org/articles/aa/abs/2014/03/aa23103-13/aa23103-13.html
N2  - Context. Some microquasars exhibit millisecond quasi-periodic oscillations (QPO) that are most probably related to phenomena occuring in the immediate vicinity of central black holes. Oscillations of accretion tori have been proposed to model these QPOs.Aims. Here, we aim at determining the observable spectral signature of slender accretion tori surrounding Kerr black holes. We analyse the impact of the inclination and spin parameters on the power spectra. Methods. Ray-traced power spectra of slender tori oscillation modes are computed in the Kerr metric. Results. We show that the power spectral densities of oscillating tori are very sensitive to the inclination and spin parameters. This strong dependency of the temporal spectra on inclination and spin may lead to observable constraints of these parameters. Conclusions. This work goes a step further in the analysis of the oscillating torus QPO model. It is part of a long-term study that will ultimately lead to comparison with observed
ER  -

ABRAMOWICZ, Marek, Pavel BAKALA, Gabriel TÖRÖK, Włodek KLU$\backslash$'ZNIAK, G. P. MAZUR, Odele STRAUB and Frédéric H. VINCENT. Spectral signature of oscillating slender tori surrounding Kerr black holes. \textit{Astronomy \&{} Astrophysics}. FR - Francouzská republika, 2014, vol.~563, March, p.~''A109 - 1''-''A109 - 8'', 8 pp. ISSN~0004-6361. Available from: https://dx.doi.org/10.1051/0004-6361/201323103.

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