Modified viscosity paper accepted

The article on “Modified viscosity in accretion disks. Application to Galactic black hole binaries, intermediate mass black holes, and AGN” has been accepted for publication in Astronomy and Astrophysics. The authors are Mikołaj Grzędzielski, Agnieszka Janiuk, Bożena Czerny and Quingwen Wu, and the content of this article will provide a contribution to Mikolaj’s PhD thesis. The term ‘modified viscosity’ is used in this paper in the context of the generalized prescription for the viscous stress tensor, on which we base our numerical simulations of accretion disks. This prescription is accounting for a variable contribution of the gas, with respect to radiation, pressure in the energy dissipation, and the scaling parameter is denoted with a Greek symbol “mu. Figure below shows how the scaling relations work for accreting black holes across the many orders of magnitude in their mass, and thus related timescales and luminosities. Full text of the paper can be found here.

fig13

 


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