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Oscillations of tori in the pseudo-Newtonian potential

Result description

The high-frequency quasi-periodic oscillations (HF QPOs) in neutron star and stellar-mass black hole X-ray binaries may be the result of a resonance between the radial and vertical epicyclic oscillations in strong gravity. In this paper we investigate the resonant coupling between the epicyclic modes in a torus in a strong gravitational field. We perform numerical simulations of axisymmetric constant angular momentum tori in the pseudo-Newtonian potential.

Keywords

accretiondisks?blackholephysics

The result's identifiers

Alternative languages

  • Result language

    angličtina

  • Original language name

    Oscillations of tori in the pseudo-Newtonian potential

  • Original language description

    The high-frequency quasi-periodic oscillations (HF QPOs) in neutron star and stellar-mass black hole X-ray binaries may be the result of a resonance between the radial and vertical epicyclic oscillations in strong gravity. In this paper we investigate the resonant coupling between the epicyclic modes in a torus in a strong gravitational field. We perform numerical simulations of axisymmetric constant angular momentum tori in the pseudo-Newtonian potential.

  • Czech name

    Oscilace toroidů v pseudonewtonovském potenciálu

  • Czech description

    Vysokofrekvenční kvaziperiodické oscilace (HF QPOs) v RTG binárních systémech s neutronovou hvězdou a černou dírou o stelární hmotě mohou vznikat z rezonance mezi radiální a vertikální epicyklickou oscilací v silné gravitaci. V tomto článku zkoumáme rezonanční vazbu mezi epicyklickými módy v torusu v silném gravitačním poli. Provádíme numerické simulace axiálně symetrických torusů s konstantním momentem hybnosti v pseudonewtonovském potenciálu.

Classification

  • Type

    Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BN - Astronomy and celestial mechanics, astrophysics

  • OECD FORD branch

    —

Result continuities

Others

  • Publication year

    2007

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Astronomy&Astrophysics

  • ISSN

    0004-6361

  • e-ISSN

    —

  • Volume of the periodical

    467

  • Issue of the periodical within the volume

    únor 2007

  • Country of publishing house

    FR - FRANCE

  • Number of pages

    6

  • Pages from-to

    641-646

  • UT code for WoS article

    —

  • EID of the result in the Scopus database

    —

Basic information

Result type

Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

Jx

CEP

BN - Astronomy and celestial mechanics, astrophysics

Year of implementation

2007

Similar results(10)

Weak nonlinear coupling between epicyclic modes in slender toriEpicyclic oscillations in spinning particle motion around Kerr black hole applied in models fitting the quasi-periodic oscillations observed in microquasars and AGNsExtended orbital resonance model applied to QPOs observed in three near-extreme Kerr black hole candidate systems