Další formáty:
BibTeX
LaTeX
RIS
@article{43302,
author = {Šrámková, Eva},
article_location = {GB - Spojené království Velké Británie a},
article_number = {5},
keywords = {QUASI-PERIODIC OSCILLATIONS, INTEGRATED RELATIVISTIC TORI, THICK ACCRETION DISCS, AXISYMMETRICAL MODES, ANGULAR-MOMENTUM, SPACE-TIME, DISKS, DISKOSEISMOLOGY, EXCITATION, STABILITY},
language = {eng},
issn = {0264-9381},
journal = {Classical and Quantum Gravity},
title = {Epicyclic oscillations of non-slender fluid tori around Kerr black holes},
volume = {26},
year = {2009}
}
TY - JOUR
ID - 43302
AU - Šrámková, Eva
PY - 2009
TI - Epicyclic oscillations of non-slender fluid tori around Kerr black holes
JF - Classical and Quantum Gravity
VL - 26
IS - 5
SN - 02649381
KW - QUASI-PERIODIC OSCILLATIONS, INTEGRATED RELATIVISTIC TORI, THICK ACCRETION DISCS, AXISYMMETRICAL MODES, ANGULAR-MOMENTUM, SPACE-TIME, DISKS, DISKOSEISMOLOGY, EXCITATION, STABILITY
N2 - Considering epicyclic oscillations of pressure-supported perfect fluid tori orbiting Kerr black holes we examine non-geodesic (pressure) effects on the epicyclic modes properties. Using a perturbation method we derive fully general relativistic formulaefor eigenfunctions and eigenfrequencies of the radial and vertical epicyclic modes of a slightly non-slender, constant specific angular momentum torus up to second-order accuracy with respect to the torus thickness. The behaviour of the axisymmetric andlowest-order (m = +/- 1) non-axisymmetric epicyclic modes is investigated. For an arbitrary black hole spin we find that, in comparison with the (axisymmetric) epicyclic frequencies of free test particles, non-slender tori receive negative pressure corrections and thus exhibit lower frequencies.
ER -
ŠRÁMKOVÁ, Eva. Epicyclic oscillations of non-slender fluid tori around Kerr black holes. \textit{Classical and Quantum Gravity}. GB - Spojené království Velké Británie a, 2009, roč.~26, č.~5, 27 s. ISSN~0264-9381.
|
