Stability analyses of two-temperature radiative shocks: formulation, eigenfunctions, luminosity response and boundary conditions

Details Stability analyses of two-temperature radiative shocks: formulation, eigenfunctions, luminosity response and boundary conditions Stability analyses of two-temperature radiative shocks: formulation, eigenfunctions, luminosity response and boundary conditions

2001-02-25

arxiv.org/abs/astro-ph/0102434v1

Mon.Not.Roy.Astron.Soc. 324 (2001) 659

Astronomy and Astrophysics

Astrophysics

26 pages, 21 figures, MNRAS in press

Scientific paper

10.1046/j.1365-8711.2001.04343.x

We present a general formulation for stability analyses of radiative shocks with multiple cooling processes, longitudinal and transverse perturbations, and unequal electron and ion temperatures. Using the accretion shocks of magnetic cataclysmic variables as an illustrative application, we investigate the shock instabilities by examining the eigenfunctions of the perturbed hydrodynamic variables. We also investigate the effects of varying the condition at the lower boundary of the post-shock flow from a zero-velocity fixed wall to several alternative type of boundaries involving the perturbed hydrodynamic variables, and the variations of the emission from the post-shock flow under different modes of oscillations. We found that the stability properties for flow with a stationary-wall lower boundary are not significantly affected by perturbing the lower boundary condition, and they are determined mainly by the energy-transport processes. Moreover, there is no obvious correlation between the amplitude or phase of the luminosity response and the stability properties of the system. Stability of the system can, however, be modified in the presence of transverse perturbation. The luminosity responses are also altered by transverse perturbation.

Affiliated with

Also associated with

No associations

Rating

Stability analyses of two-temperature radiative shocks: formulation, eigenfunctions, luminosity response and boundary conditions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Stability analyses of two-temperature radiative shocks: formulation, eigenfunctions, luminosity response and boundary conditions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stability analyses of two-temperature radiative shocks: formulation, eigenfunctions, luminosity response and boundary conditions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-612268