Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ap%26ss.307...23m&link_type=abstract
Astrophysics and Space Science, Volume 307, Issue 1-3, pp. 23-27
Astronomy and Astrophysics
Astrophysics
Hydrodynamics, Jet, Grbs, Supernovae, Shock, Relativity
Scientific paper
We investigate the outflow propagation in the collapsar in the context of gamma-ray bursts (GRBs) with 2D relativistic hydrodynamic simulations. We vary the specific internal energy and bulk Lorentz factor of the injected outflow from non-relativistic regime to relativistic one, fixing the power of the outflow to be 1051erg s-1. We observed the collimated outflow, when the Lorentz factor of the injected outflow is roughly greater than 2. To the contrary, when the velocity of the injected outflow is slower, the expanding outflow is observed. The transition from collimated jet to expanding outflow continuously occurs by decreasing the injected velocity. Different features of the dynamics of the outflows would cause the difference between the GRBs and similar phenomena, such as, X-ray flashes.
Mineshige Shin
Mizuta Akira
Nagataki Shigehiro
Yamasaki Tatsuya
No associations
LandOfFree
Outflow Propagation in Collapsars: Collimated Jets and Expanding Outflows does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Outflow Propagation in Collapsars: Collimated Jets and Expanding Outflows, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Outflow Propagation in Collapsars: Collimated Jets and Expanding Outflows will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1363695