Two‐dimensional Models of Hydrodynamical Accretion Flows into Black Holes | Zendy

I. V. Igumenshchev | Zendy; M. A. Abramowicz | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Two‐dimensional Models of Hydrodynamical Accretion Flows into Black Holes

Author(s) -

I. V. Igumenshchev,

M. A. Abramowicz

Publication year - 2000

Publication title -

the astrophysical journal supplement series

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.546

H-Index - 277

eISSN - 1538-4365

pISSN - 0067-0049

DOI - 10.1086/317354

Subject(s) - physics , adiabatic process , accretion (finance) , convection , thermal conduction , radiative transfer , mechanics , parameter space , rotational symmetry , astrophysics , thermodynamics , geometry , mathematics , quantum mechanics

We present a systematic numerical study of two-dimensional axisymmetricaccretion flows around black holes. The flows have no radiative cooling and aretreated in the framework of the hydrodynamical approximation. The modelscalculated in this study cover the large range of the relevant parameter space.There are four types of flows, determined by the values of the viscosityparameter $\alpha$ and the adiabatic index $\gamma$: convective flows,large-scale circulations, pure inflows and bipolar outflows. Thermal conductionintroduces significant changes to the solutions, but does not create a new flowtype. Convective accretion flows and flows with large-scale circulations havesignificant outward-directed energy fluxes, which have important implicationsfor the spectra and luminosities of accreting black holes.Comment: 43 pages, 23 figures, submitted to Ap

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research