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Explosive Processes and Strong Eruptions in Astrophysical Objects with Degenerate E-P Gas

Author: Tinatin Tsiskaridze
Annotation:

In this thesis we consider the explosive processes and powerful eruptions in degenerate electron-positron gas of astrophysical objects. We study the generation of magnetic field and strong flows via catastrophic transformation of equilibrium states for the case of a dense two-fluid astrophysical objects like the ones observed in GRB (gamma ray bursts). Strong vector fields (velocity and magnetic) found in such objects - the fast formation of powerful flows or magnetic fields – can be explained by the magneto-fluid couplings/energy transformations. Origin of the formation of fast flows / outflows / eruptions falls into the explosion / collapse of the structure (catastrophe); hence, the relaxation of the original equilibrium is followed by the remarkable energy transformations leading to the possible generation of astrophysical outflows/jets. It is noteworthy that our relativistic degenerate two-fluid model clearly shows the sharp dependence of relaxation process on the degeneracy level (density), that was not the case in the classical electron-ion case. In fact, this finding is good for comparing the astrophysically observed characteristic parameters with the results obtained from the theoretical model / as well as for predicting them.



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