Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-07-16
Astron.Astrophys.416:423,2004
Astronomy and Astrophysics
Astrophysics
17 pages, 9 figures
Scientific paper
10.1051/0004-6361:20034089
A self-similar solution for the 3D axi-symmetric radiative MHD equations, which revisits the formation and acceleration of accretion-powered jets in AGNs and microquasars, is presented. The model relies primarily on electromagnetic extraction of rotational energy from the disk plasma and forming a geometrically thin super-Keplerian layer between the disk and the overlying corona. The outflowing plasma in this layer is dissipative, two-temperature, virial-hot, advective and electron-proton dominated. The innermost part of the disk in this model is turbulent-free, sub-Keplerian rotating and advective-dominated. This part ceases to radiate as a standard disk, and most of the accretion energy is converted into magnetic and kinetic energies that go into powering the jet. The corresponding luminosities of these turbulent-truncated disks are discussed.
Blandford Roger
Hujeirat A. A.
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