Low-frequency quasi-periodic oscillations and shocks in accretion on to black hole

Chandra B. Singh; Santanu Mondal; David Garofalo

doi:10.1093/mnras/stab3471

Low-frequency quasi-periodic oscillations and shocks in accretion on to black hole

Chandra B. Singh, Santanu Mondal, David Garofalo

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Low-frequency quasi-periodic oscillations (LFQPOs) have been routinely observed in black hole X-ray binaries (BHXRBs). These LFQPOs can be explained by axisymmetric shock oscillation in accretion flow around a rotating black hole. We address the physical origin of Type-C LFQPOs in BHXRBs observed by the Rossi X-ray Timing Explorer satellite considering a minimum number of free parameters, namely, specific energy and specific angular momentum of the infalling matter for a given set of BH mass and spin parameter. We apply the solution for a large number of BH candidates to further strengthen the scenario of an anticorrelation between the QPO frequency and the location of the shock. Our study also confirms that Compton cooling can be sufficient to explain the observed QPOs.

Original language	English
Pages (from-to)	807-814
Number of pages	8
Journal	Monthly Notices of the Royal Astronomical Society
Volume	510
Issue number	1
DOIs	https://doi.org/10.1093/mnras/stab3471
State	Published - 1 Feb 2022
Externally published	Yes

Keywords

accretion, accretion discs
binaries: close
black hole physics
hydrodynamics
shock waves

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1093/mnras/stab3471

Cite this

@article{714f9dcbd1414d6392e68109a99ac92c,

title = "Low-frequency quasi-periodic oscillations and shocks in accretion on to black hole",

abstract = "Low-frequency quasi-periodic oscillations (LFQPOs) have been routinely observed in black hole X-ray binaries (BHXRBs). These LFQPOs can be explained by axisymmetric shock oscillation in accretion flow around a rotating black hole. We address the physical origin of Type-C LFQPOs in BHXRBs observed by the Rossi X-ray Timing Explorer satellite considering a minimum number of free parameters, namely, specific energy and specific angular momentum of the infalling matter for a given set of BH mass and spin parameter. We apply the solution for a large number of BH candidates to further strengthen the scenario of an anticorrelation between the QPO frequency and the location of the shock. Our study also confirms that Compton cooling can be sufficient to explain the observed QPOs.",

keywords = "accretion, accretion discs, binaries: close, black hole physics, hydrodynamics, shock waves",

author = "Singh, {Chandra B.} and Santanu Mondal and David Garofalo",

note = "Publisher Copyright: {\textcopyright} 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.",

year = "2022",

month = feb,

day = "1",

doi = "10.1093/mnras/stab3471",

language = "English",

volume = "510",

pages = "807--814",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "1",

}

TY - JOUR

T1 - Low-frequency quasi-periodic oscillations and shocks in accretion on to black hole

AU - Singh, Chandra B.

AU - Mondal, Santanu

AU - Garofalo, David

PY - 2022/2/1

Y1 - 2022/2/1

N2 - Low-frequency quasi-periodic oscillations (LFQPOs) have been routinely observed in black hole X-ray binaries (BHXRBs). These LFQPOs can be explained by axisymmetric shock oscillation in accretion flow around a rotating black hole. We address the physical origin of Type-C LFQPOs in BHXRBs observed by the Rossi X-ray Timing Explorer satellite considering a minimum number of free parameters, namely, specific energy and specific angular momentum of the infalling matter for a given set of BH mass and spin parameter. We apply the solution for a large number of BH candidates to further strengthen the scenario of an anticorrelation between the QPO frequency and the location of the shock. Our study also confirms that Compton cooling can be sufficient to explain the observed QPOs.

AB - Low-frequency quasi-periodic oscillations (LFQPOs) have been routinely observed in black hole X-ray binaries (BHXRBs). These LFQPOs can be explained by axisymmetric shock oscillation in accretion flow around a rotating black hole. We address the physical origin of Type-C LFQPOs in BHXRBs observed by the Rossi X-ray Timing Explorer satellite considering a minimum number of free parameters, namely, specific energy and specific angular momentum of the infalling matter for a given set of BH mass and spin parameter. We apply the solution for a large number of BH candidates to further strengthen the scenario of an anticorrelation between the QPO frequency and the location of the shock. Our study also confirms that Compton cooling can be sufficient to explain the observed QPOs.

KW - accretion, accretion discs

KW - binaries: close

KW - black hole physics

KW - hydrodynamics

KW - shock waves

UR - http://www.scopus.com/inward/record.url?scp=85126665254&partnerID=8YFLogxK

U2 - 10.1093/mnras/stab3471

DO - 10.1093/mnras/stab3471

M3 - Article

AN - SCOPUS:85126665254

SN - 0035-8711

VL - 510

SP - 807

EP - 814

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

Low-frequency quasi-periodic oscillations and shocks in accretion on to black hole

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this