Abstract
We suggest that the dynamical regime(s) underlying quasi-periodic oscillations observed in the spectra of bright galactic-bulge X-ray sources are nonlinear with a mixed phase space. The important feature of such regimes is that they are generic among nonlinear Hamiltonian and nearly Hamiltonian systems of more than two degrees of freedom. We give a simple example of such chaotic (deterministic) systems whose spectra share a number of features with those observed for quasiperiodic oscillations of such sources.
Similar content being viewed by others
References
Beloshapkin, V. V., Zaslavskii, G. M. 1983,Phys. Lett.,97A, 121.
Chirkov, B. V. 1979,Phys. Rep.,52C, 263.
Coley, A., Tavakol, R. K. 1992,GRG,24, 835.
Klis van der, M. 1989,A. Rev. Astr. Astrophys.,27, 517.
Tavakol, R. K., Ellis, G. F. R. 1988,Phys. Lett.,130A, 217.
Zaslavskii, G. M., Chirkov, B. V. 1972,Soviet Phys. Usp.,14, 549.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Tavakol, R., Singh, H.P. Spectra of quasiperiodic oscillations of galactic X-ray sources–dynamical regimes from a simple model. J Astrophys Astron 18, 33–37 (1997). https://doi.org/10.1007/BF02714852
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02714852