Self-collimated axial jet seeds from thin accretion disks.
We show how an appropriate stationary crystalline structure of the magnetic field can induce a partial fragmentation of the accretion disk, generating an axial jet seed composed of hot plasma twisted in a funnel-like structure due to the rotation of the system. The most important feature we outline is the high degree of collimation, naturally following from the basic assumptions underlying the crystalline structure. The presence of nonzero dissipative effects allows the plasma ejection throughout the axial jet seed and the predicted values of the accretion rate are in agreement with observations.
Physics Department, "Sapienza" University of Rome, Piazzale Aldo Moro 5, 00185 Roma, Italy and Department of Physics and Nuclear Engineering, Universitat Politecnica de Catalunya, Barcelona, Spain.
Giulio
G
Tirabassi
Giovanni
G
Montani
Nakia
N
Carlevaro