caa a22 4500 445386894 CHVBK 20180317143034.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10714-010-1038-9 doi (NATIONALLICENCE)springer-10.1007/s10714-010-1038-9 Viscoresistive MHD configurations of plasma in accretion disks [Elektronische Daten] [Giovanni Montani, Riccardo Benini] We present a discussion of two-dimensional magneto-hydrodynamics (MHD) configurations, concerning the equilibria of accretion disks of a strongly magnetized astrophysical object. We set up a viscoresistive scenario which generalizes previous two-dimensional analyses by reconciling the ideal MHD coupling of the vertical and the radial equilibria within the disk with the standard mechanism of the angular momentum transport, relying on dissipative properties of the plasma configuration. The linear features of the considered model are analytically developed and the non-linear configuration problem is addressed, by fixing the entire disk profile at the same order of approximation. Indeed, the azimuthal and electron force balance equations are no longer automatically satisfied when poloidal currents and matter fluxes are included in the problem. These additional components of the equilibrium configuration induce a different morphology of the magnetic flux surface, with respect to the ideal and simply rotating disk. Springer Science+Business Media, LLC, 2010 Accretion disks nationallicence Plasma physics nationallicence 2-d MHD nationallicence Montani Giovanni Department F.P.N., ENEA-C.R. Frascati, Via Enrico Fermi 45, 00044, Frascati (Rome), Italy aut Benini Riccardo Department of Physics (G9), "Sapienza” Università di Roma, Piazzale A. Moro 5, 00185, Rome, Italy aut General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/4(2011-04-01), 1121-1140 0001-7701 43:4<1121 2011 43 10714 https://doi.org/10.1007/s10714-010-1038-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-010-1038-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Montani Giovanni Department F.P.N., ENEA-C.R. Frascati, Via Enrico Fermi 45, 00044, Frascati (Rome), Italy aut NATIONALLICENCE 700 1- Benini Riccardo Department of Physics (G9), "Sapienza” Università di Roma, Piazzale A. Moro 5, 00185, Rome, Italy aut NATIONALLICENCE 773 0- General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/4(2011-04-01), 1121-1140 0001-7701 43:4<1121 2011 43 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer