Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.397d&link_type=abstract
Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:
Astronomy and Astrophysics
Astrophysics
Scientific paper
We compute mass outflow rate R_{dot m} from relativistic matter with zero intrinsic angular momentum accreting quasi-spherically onto Schwarzschild black holes. Taking the pair-plasma pressure mediated shock surface as the effective boundary layer of the black hole from where bulk of the outflow is assumed to be generated, this rate is computed using combinations of exact transonic inflow and outflow solutions. We find that R_{dot m} depends on the initial parameters of the flow, the polytropic index of matter, the degree of compression of matter near the shock surface and on the location of the shock surface itself. We thus not only provide a sufficiently plausible estimation of the mass outflow rate but also study the variation of this rate as a function of various physical parameters governing the problem. Our calculation could explain the jet formation from AGN models without accretion disks, as we believe.
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