Evolution of a Compton heated wind from an irradiated accretion disk

Details Evolution of a Compton heated wind from an irradiated accretion disk Evolution of a Compton heated wind from an irradiated accretion disk

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aipc..254..276w&link_type=abstract

In: Testing the AGN paradigm; Proceedings of the 2nd Annual Topical Astrophysics Conference, Univ. of Maryland, College Park, Oc

Astronomy and Astrophysics

Astronomy

Accretion Disks, Black Holes (Astronomy), Compton Effect, Hydrodynamic Equations, Ionizing Radiation, Optical Thickness, Flares, Luminosity, Temperature Effects, Thermodynamic Equilibrium

Scientific paper

We present 2D hydrodynamical calculations of an axially symmetric Compton heated wind from an accretion disk surrounding a massive black hole. The accretion disk is assumed to flare with radius, thus allowing the disk to be exposed to the hard ionizing radiation of the central source. The heating produces a hot corona above the disk with a temperature on the order of the Compton temperature, which, at sufficiently large distances from the central object, leads to a thermally driven wind. Our code utilizes a second-order Godunov scheme with adaptive mesh refinement to which rotation, central gravity, and energy sources/sinks have been added. We present the results of a calculation which has been evolved from a nearly static thermal equilibrium for a luminosity of the central object of L/L(EDD) = 0.3. The wind which develops appears to be hydrodynamically stable for our optically thin heating function. We show the structure of the wind and compare the mass flux densities to analytic estimates.

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