1. Deterministic chaos in a discrete-time model for spherical accretion onto neutron stars
- Author
-
Harald Atmanspacher, V. Demmel, and Gregor E. Morfill
- Subjects
Physics ,Atmospheric Science ,Astrophysics::High Energy Astrophysical Phenomena ,Chaotic ,Aerospace Engineering ,Astronomy and Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics ,Radiation ,Accretion (astrophysics) ,Accretion rate ,Nonlinear system ,Neutron star ,Geophysics ,Discrete time and continuous time ,Dynamic models ,Space and Planetary Science ,Astrophysics::Solar and Stellar Astrophysics ,General Earth and Planetary Sciences ,Astrophysics::Earth and Planetary Astrophysics ,Astrophysics::Galaxy Astrophysics - Abstract
The interaction of the accreting mass and the X-ray radiation of a spherically accreting neutron star is described by a discrete — time dynamical model. Its main feature consists of a nonlinear feedback mechanism between mass accretion and escaping radiation. The model is studied with respect to its stability properties and its astrophysical implications. As a function of time, we obtain stationary, periodic, and chaotic luminosities. The different kinds of behavior occur in different regimes of the mass accretion rate.
- Published
- 1988