Instability of accretion flow with a shock wave

Details Instability of accretion flow with a shock wave Instability of accretion flow with a shock wave

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pasj...46..257n&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan, vol. 46, no. 3, p. 257-265

Astronomy and Astrophysics

Astronomy

32

Black Holes (Astronomy), Deposition, Dynamic Stability, Hydrodynamics, Shock Waves, Eigenvalues, Mathematical Models, Perturbation

Scientific paper

The dynamical instability of accretion flow onto a black hole with a standing shock wave is investigated. When gas possessing angular momentum accretes onto a black hole, the flow can be associated with a standing shock wave. If the flow is decelerated at the pre-shock side of the front, it is unstable and the shock front leaves its equilibrium position. Assuming an isothermal accreting gas flow and a psuedo-Newtonian potential, we obtained the eigenvalues and eigenfunctions of unstable perturbations. The non-linear evolution of the instability was also studied by a numerical simulation. The physical mechanism of the instability is explained in terms of shock wave propagation. It is shown that the motion of the shock front depends on the balance between the total pressures of the pre- and post-shock flows.

Affiliated with

Also associated with

No associations

Rating

Instability of accretion flow with a shock wave 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 Instability of accretion flow with a shock wave, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Instability of accretion flow with a shock wave will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1507072