Black hole winds II: Hyper-Eddington winds and feedback
نویسندگان
چکیده
منابع مشابه
Black Hole Winds
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 bina-ries. The photospheric radius and outflow speed are proportional to ˙ M 2 out and ˙ M −1 out respectively, where ˙ M out is the mass outflow rate. The outflow momentum rate is always of order L Edd /c. Blackbody emission from these...
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Motivated by recent observations of high-velocity, highly ionized winds in several QSOs, models of purely continuum-driven winds launched from ∼ 200 GMBH/c2 are presented. Launching conditions are investigated, as well as the observational signatures for a variety of initial conditions and illuminating continua. While we verify that continuum-driven, highly-ionized outflows reach the observed v...
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We present a model for the steady state winds of super-Eddington systems. These radiatively driven winds are expected to be optically thick and clumpy as they arise from a porous atmosphere. The model is then used to derive the mass loss of bright classical novae. The long duration super-Eddington outflows that are clearly observed in at least two cases (Nova LMC 1988 #1 & Nova FH Ser) are natu...
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A model of major ejection events in Galactic superluminal sources GRO J 1655-40 and GRS 1915-105 is proposed, in which episodes of e−e+ pair creation give rise to the formation of optically thick outflows accelerating protons to the limiting Lorentz factor of order 2-3. Probable source of e−e+ pairs is pion production in nucleon collisions. Subsequent deceleration of ejecta and formation of rad...
متن کاملNumerical simulations of continuum-driven winds of super-Eddington stars
We present the results of numerical simulations of continuum-driven winds of stars that exceed the Eddington limit and compare these against predictions from earlier analytical solutions. Our models are based on the assumption that the stellar atmosphere consists of clumped matter, where the individual clumps have a much larger optical thickness than the matter between the clumps. This ‘porosit...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2015
ISSN: 1365-2966,0035-8711
DOI: 10.1093/mnras/stv2347