Structure of steady state accretion shocks with several cooling functions: Closed integral-form solution

Details Structure of steady state accretion shocks with several cooling functions: Closed integral-form solution Structure of steady state accretion shocks with several cooling functions: Closed integral-form solution

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...426..664w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 426, no. 2, p. 664-668

Astronomy and Astrophysics

Astrophysics

58

Accretion Disks, Bremsstrahlung, Cooling, Hydrodynamics, Shock Waves, Steady State, Astrophysics, Continuity Equation, Integral Equations, Velocity Distribution, White Dwarf Stars

Scientific paper

We present, for the first time, a closed integral-form solution to the accretion shock structures for the case where the cooling is due to optically thin bremsstrahlung emission and a series of power-law cooling functions of density and temperature. Our results can provide useful checks on numerical calculations and simple accurate estimates for valuable parameters such as the shock height. For the case where the cooling rate j = (2/3)Arho2(P/rho)1/2(1 + epsilon s(P/Psalpha(rhos/rho)beta), we find that a substantial amount of the accretion energy is released at the base of the accretion shock in the form of bremsstrahlung radiation. This implies that for a cyclotron-dominated shock (qualitatively given by alpha = 2.0, beta = 3.85, and epsilons is much greater than 1), bremsstrahlung cooling still plays a crucial role in determining the shock structure. Our results are shown to be consistent with detailed numerical calculations.

Affiliated with

Also associated with

No associations

Rating

Structure of steady state accretion shocks with several cooling functions: Closed integral-form solution 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 Structure of steady state accretion shocks with several cooling functions: Closed integral-form solution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structure of steady state accretion shocks with several cooling functions: Closed integral-form solution will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-885000