Distinguishing between spot and torus models of high-frequency
quasiperiodic oscillations

J 2014

Distinguishing between spot and torus models of high-frequency quasiperiodic oscillations

ABRAMOWICZ, Marek, Pavel BAKALA, Kateřina GOLUCHOVÁ, Eva ŠRÁMKOVÁ, Gabriel TÖRÖK et. al.

Basic information

Original name

Distinguishing between spot and torus models of high-frequency quasiperiodic oscillations

Authors

ABRAMOWICZ, Marek, Pavel BAKALA, Kateřina GOLUCHOVÁ, Eva ŠRÁMKOVÁ, Gabriel TÖRÖK, Martin WILDNER, Dalibor WZIENTEK, Michal DOVČIAK, Vladimír KARAS, Grzegorz MAZUR and Frédéric H. VINCENT

Edition

Acta Polytechnica, CZ - Česká republika, Acta Polytechnica, 2014, 1210-2709

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/10.14311/AP.2014.54.0191

Keywords in English

accretion; accretion disks; black hole physics; X-rays: binaries

Links

EE2.3.20.0071, research and development project. GB14-37086G, research and development project. GPP209/12/P740, research and development project.

Změněno: 27/4/2021 09:42, Jan Vlha

Abstract

V originále

In the context of high-frequency quasi-periodic oscillation (HF QPOs) we further explore the appearance of an observable signal generated by hot spots moving along quasi-elliptic trajectories close to the innermost stable circular orbit in the Schwarzschild spacetime. The aim of our investigation is to reveal whether observable characteristics of the Fourier power-spectral density can help us to distinguish between the two competing models, namely, the idea of bright spots orbiting on the surface of anaccretion torus versus the scenario of intrinsic oscillations of the torus itself. We take the capabilities of the present observatories (represented by the Rossi X-ray Timing Explorer, RXTE) into account, and we also consider the proposed future instruments (represented here by the Large Observatory for X-ray Timing, LOFT).

Citovat

ABRAMOWICZ, Marek, Pavel BAKALA, Kateřina GOLUCHOVÁ, Eva ŠRÁMKOVÁ, Gabriel TÖRÖK, Martin WILDNER, Dalibor WZIENTEK, Michal DOVČIAK, Vladimír KARAS, Grzegorz MAZUR and Frédéric H. VINCENT. Distinguishing between spot and torus models of high-frequency quasiperiodic oscillations. Acta Polytechnica. CZ - Česká republika: Acta Polytechnica, 2014, vol. 54, No 3, p. 191-196. ISSN 1210-2709. Available from: https://dx.doi.org/10.14311/AP.2014.54.0191.

@article{42766,
   author = {Abramowicz, Marek and Bakala, Pavel and Goluchová, Kateřina and Šrámková, Eva and Török, Gabriel and Wildner, Martin and Wzientek, Dalibor and Dovčiak, Michal and Karas, Vladimír and Mazur, Grzegorz and Vincent, Frédéric H.},
   article_location = {CZ - Česká republika},
   article_number = {3},
   doi = {http://dx.doi.org/10.14311/AP.2014.54.0191},
   keywords = {accretion; accretion disks; black hole physics; X-rays: binaries},
   language = {eng},
   issn = {1210-2709},
   journal = {Acta Polytechnica},
   title = {Distinguishing between spot and torus models of high-frequency quasiperiodic oscillations},
   url = {https://ojs.cvut.cz/ojs/index.php/ap/article/view/2127},
   volume = {54},
   year = {2014}
}

TY  - JOUR
ID  - 42766
AU  - Abramowicz, Marek - Bakala, Pavel - Goluchová, Kateřina - Šrámková, Eva - Török, Gabriel - Wildner, Martin - Wzientek, Dalibor - Dovčiak, Michal - Karas, Vladimír - Mazur, Grzegorz - Vincent, Frédéric H.
PY  - 2014
TI  - Distinguishing between spot and torus models of high-frequency quasiperiodic oscillations
JF  - Acta Polytechnica
VL  - 54
IS  - 3
SP  - 191-196
EP  - 191-196
PB  - Acta Polytechnica
SN  - 12102709
KW  - accretion
KW  - accretion disks
KW  - black hole physics
KW  - X-rays: binaries
UR  - https://ojs.cvut.cz/ojs/index.php/ap/article/view/2127
N2  - In the context of high-frequency quasi-periodic oscillation (HF QPOs) we further explore the appearance of an observable signal generated by hot spots moving along quasi-elliptic trajectories close to the innermost stable circular orbit in the Schwarzschild spacetime. The aim of our investigation is to reveal whether observable characteristics of the Fourier power-spectral density can help us to distinguish between the two competing models, namely, the idea of bright spots orbiting on the surface of anaccretion torus versus the scenario of intrinsic oscillations of the torus itself. We take the capabilities of the present observatories (represented by the Rossi X-ray Timing Explorer, RXTE) into account, and we also consider the proposed future instruments (represented here by the Large Observatory for X-ray Timing, LOFT).
ER  -

ABRAMOWICZ, Marek, Pavel BAKALA, Kateřina GOLUCHOVÁ, Eva ŠRÁMKOVÁ, Gabriel TÖRÖK, Martin WILDNER, Dalibor WZIENTEK, Michal DOVČIAK, Vladimír KARAS, Grzegorz MAZUR and Frédéric H. VINCENT. Distinguishing between spot and torus models of high-frequency quasiperiodic oscillations. \textit{Acta Polytechnica}. CZ - Česká republika: Acta Polytechnica, 2014, vol.~54, No~3, p.~191-196. ISSN~1210-2709. Available from: https://dx.doi.org/10.14311/AP.2014.54.0191.

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