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19 April 2024 |
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Relativistic Jets from Collapsars | | Miguel A. Aloy
; Ewald Mueller
; Jose M. Ibanez
; Jose M. Marti
; Andrew MacFadyen
; | | Date: |
26 Oct 1999 | | Subject: | astro-ph | | Affiliation: | Valencia), Ewald Mueller (MPA, Garching), Jose M. Ibanez (Valencia), Jose M. Marti (Valencia), Andrew MacFadyen (UC, Santa Cruz | | Abstract: | We have studied the relativistic beamed outflow proposed to occur in the collapsar model of gamma-ray bursts. A jet forms as a consequence of an assumed energy deposition of $sim 10^{50}- 10^{51}$ erg/s within a $30^{circ}$ cone around the rotation axis of the progenitor star. The generated jet flow is strongly beamed ($la$ few degrees) and reaches the surface of the stellar progenitor (r $approx 3 10^{10} $cm) intact. At break-out the maximum Lorentz factor of the jet flow is about 33. Simulations have been performed with the GENESIS multi-dimensional relativistic hydrodynamic code. | | Source: | arXiv, astro-ph/9910466 | | Other source: | [GID 211619] astro-ph/9911098 | | Services: | Forum | Review | PDF | Favorites | |
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