Black Hole Winds

Abstract

We show that black holes accreting at or above the Eddington rate probably produce winds which are optically thick in the continuum, whether in quasars or X-ray binaries. The photospheric radius and outflow speed are proportional to \mo^2 and \mo^-1 respectively, where \mo is the mass outflow rate. The outflow momentum rate is always of order L_Edd/c. Blackbody emission from these winds may provide the big blue bump in some quasars and AGN, as well as ultrasoft X-ray components in ULXs.

3 pages, no figures; MNRAS, in press (with minor corrections applied)

References in corpus (5)

• Ultraluminous X-Ray Sources in External Galaxies
• Magnetohydrodynamical Non-radiative Accretion Flows in Two-Dimensions
• The Brightest Black Holes
• A Variable Ultraluminous Supersoft X-ray Source in "The Antennae": Stellar-Mass Black Hole or White Dwarf?
• Chandra Observation of Luminous and Ultraluminous X-ray Binaries in M101

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