Quasi-periodic oscillations around Kerr-MOG black holes

J 2020

Quasi-periodic oscillations around Kerr-MOG black holes

KOLOŠ, Martin, Misbah SHAHZADI and Zdeněk STUCHLÍK

Basic information

Original name

Quasi-periodic oscillations around Kerr-MOG black holes

Authors

KOLOŠ, Martin (203 Czech Republic, belonging to the institution), Misbah SHAHZADI and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution)

Edition

European Physical Journal C, 2020, 1434-6044

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10303 Particles and field physics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

RIV identification code

RIV/47813059:19630/20:A0000035

Organization unit

Institute of physics in Opava

DOI

http://dx.doi.org/10.1140/epjc/s10052-020-7692-5

UT WoS

000517130800001

Keywords in English

X-RAY BINARIES; MASS; QPOS; MODEL; FIELD; RADIATION; MOTION; SPIN

Links

GA19-03950S, research and development project. GB14-37086G, research and development project.

Změněno: 23/3/2021 22:03, Mgr. Pavlína Jalůvková

Abstract

V originále

The study of the quasi-periodic oscillations (QPOs) of X-ray flux observed in the stellar-mass black hole (BH) binaries can provide a powerful tool for testing the phenomena occurring in strong gravity regime. We thus present and apply to three known microquasars the model of epicyclic oscillations of Keplerian discs orbiting rotating BHs governed by the modified theory of gravity (MOG). We show that the standard geodesic models of QPOs can explain the observationally fixed data from the three microquasars, GRO 1655-40, XTE 1550-564, and GRS 1915+105. We perform a successful fitting of the high frequency (HF) QPOs observed in these microquasars, under assumption of MOG BHs, for epicyclic resonance and its variants, relativistic precession and its variants, tidal disruption, as well as warped disc models and discuss the corresponding constraints of parameters of the model, which are the mass and spin and parameter alpha of the BH.

Citovat

KOLOŠ, Martin, Misbah SHAHZADI and Zdeněk STUCHLÍK. Quasi-periodic oscillations around Kerr-MOG black holes. European Physical Journal C. 2020, vol. 80, No 2, p. "133-1"-"133-12", 12 pp. ISSN 1434-6044. Available from: https://dx.doi.org/10.1140/epjc/s10052-020-7692-5.

@article{49444,
   author = {Kološ, Martin and Shahzadi, Misbah and Stuchlík, Zdeněk},
   article_number = {2},
   doi = {http://dx.doi.org/10.1140/epjc/s10052-020-7692-5},
   keywords = {X-RAY BINARIES; MASS; QPOS; MODEL; FIELD; RADIATION; MOTION; SPIN},
   language = {eng},
   issn = {1434-6044},
   journal = {European Physical Journal C},
   title = {Quasi-periodic oscillations around Kerr-MOG black holes},
   url = {https://link.springer.com/article/10.1140/epjc/s10052-020-7692-5},
   volume = {80},
   year = {2020}
}

TY  - JOUR
ID  - 49444
AU  - Kološ, Martin - Shahzadi, Misbah - Stuchlík, Zdeněk
PY  - 2020
TI  - Quasi-periodic oscillations around Kerr-MOG black holes
JF  - European Physical Journal C
VL  - 80
IS  - 2
SP  - "133-1"-"133-12"
EP  - "133-1"-"133-12"
SN  - 14346044
KW  - X-RAY BINARIES
KW  - MASS
KW  - QPOS
KW  - MODEL
KW  - FIELD
KW  - RADIATION
KW  - MOTION
KW  - SPIN
UR  - https://link.springer.com/article/10.1140/epjc/s10052-020-7692-5
N2  - The study of the quasi-periodic oscillations (QPOs) of X-ray flux observed in the stellar-mass black hole (BH) binaries can provide a powerful tool for testing the phenomena occurring in strong gravity regime. We thus present and apply to three known microquasars the model of epicyclic oscillations of Keplerian discs orbiting rotating BHs governed by the modified theory of gravity (MOG). We show that the standard geodesic models of QPOs can explain the observationally fixed data from the three microquasars, GRO 1655-40, XTE 1550-564, and GRS 1915+105. We perform a successful fitting of the high frequency (HF) QPOs observed in these microquasars, under assumption of MOG BHs, for epicyclic resonance and its variants, relativistic precession and its variants, tidal disruption, as well as warped disc models and discuss the corresponding constraints of parameters of the model, which are the mass and spin and parameter alpha of the BH.
ER  -

KOLOŠ, Martin, Misbah SHAHZADI and Zdeněk STUCHLÍK. Quasi-periodic oscillations around Kerr-MOG black holes. \textit{European Physical Journal C}. 2020, vol.~80, No~2, p.~''133-1''-''133-12'', 12 pp. ISSN~1434-6044. Available from: https://dx.doi.org/10.1140/epjc/s10052-020-7692-5.

Detailed Information on Publication Record