TÖRÖK, Gabriel and Zdeněk STUCHLÍK. Radial and vertical epicyclic frequencies of Keplerian motion in the field of Kerr naked singularities - Comparison with the black hole case and possible instability of naked-singularity accretion discs. ASTRONOMY & ASTROPHYSICS. LES ULIS CEDEX A: EDP SCIENCES S A, 2005, vol. 437, No 3, p. 775-788. ISSN 0004-6361. Available from: https://dx.doi.org/10.1051/0004-6361:20052825. |
Other formats:
BibTeX
LaTeX
RIS
@article{41408, author = {Török, Gabriel and Stuchlík, Zdeněk}, article_location = {LES ULIS CEDEX A}, article_number = {3}, doi = {http://dx.doi.org/10.1051/0004-6361:20052825}, keywords = {black holes physics; X-rays : general}, language = {eng}, issn = {0004-6361}, journal = {ASTRONOMY & ASTROPHYSICS}, title = {Radial and vertical epicyclic frequencies of Keplerian motion in the field of Kerr naked singularities - Comparison with the black hole case and possible instability of naked-singularity accretion discs}, volume = {437}, year = {2005} }
TY - JOUR ID - 41408 AU - Török, Gabriel - Stuchlík, Zdeněk PY - 2005 TI - Radial and vertical epicyclic frequencies of Keplerian motion in the field of Kerr naked singularities - Comparison with the black hole case and possible instability of naked-singularity accretion discs JF - ASTRONOMY & ASTROPHYSICS VL - 437 IS - 3 SP - 775-788 EP - 775-788 PB - EDP SCIENCES S A SN - 00046361 KW - black holes physics KW - X-rays : general N2 - Relativistic Keplerian orbital frequency (v(K)) and related epicyclic frequencies (radial v(r), vertical v(theta)) play an important role in the physics of accretion discs orbiting Kerr black holes - quasiperiodic oscillations observed in microquasars can be explained by associated resonant or trapping effects. Because of growing theoretical evidence of the possible existence of naked singularities, we discuss the behaviour of the fundamenal orbital frequencies for Keplerian motion in the field of Kerr naked singularities, primarily in order to find phenomena that could observationally distinguish a hypothetical naked singularity from black holes. Some astrophysically important consequences are sketched, namely the existence of strong resonant frequency for all Kerr naked singularities, with radial and vertical epicyclic frequencies equal and given by the relation omega(sr) = a(-2) root a(2)-1 (a(2) + 1)-(1). ER -
TÖRÖK, Gabriel and Zdeněk STUCHLÍK. Radial and vertical epicyclic frequencies of Keplerian motion in the field of Kerr naked singularities - Comparison with the black hole case and possible instability of naked-singularity accretion discs. \textit{ASTRONOMY \&{}amp; ASTROPHYSICS}. LES ULIS CEDEX A: EDP SCIENCES S A, 2005, vol.~437, No~3, p.~775-788. ISSN~0004-6361. Available from: https://dx.doi.org/10.1051/0004-6361:20052825.
|