Hypercritical spherical accretion onto compact objects

Details Hypercritical spherical accretion onto compact objects Hypercritical spherical accretion onto compact objects

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...308..755b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 308, Sept. 15, 1986, p. 755-764.

Other

51

Stellar Mass Accretion, Stellar Models, Emission Spectra, Hydrodynamic Equations, Optical Thickness, Rotating Spheres, Shock Wave Propagation

Scientific paper

Models of hydrodynamical, steady state, spherical accretion onto a compact object are discussed. The thermal balance of these models is dominated by radiative cooling in the optically thin region of the flow below the accretion radius, resulting in a cool, isothermal flow at large radii. At small radii the flow becomes optically thick and eventually passes through a trapping radius r(tr) below which photons are advected downstream faster than they can diffuse upstream. The solutions at radii below r(tr) include both adiabatic flow and radiation-dominated shocks. The luminosity of the adiabatic models is determined by the PdV work of converging fluid flow above r(tr) and corresponds to very small efficiencies. The luminosity of the shock models can, however, approach the Eddington limit as the shock radius approaches r(tr).

Affiliated with

Also associated with

No associations

Rating

Hypercritical spherical accretion onto compact objects 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 Hypercritical spherical accretion onto compact objects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hypercritical spherical accretion onto compact objects will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1290964