Exploring consequences of the MHD collapsar model for GRBs.

Details Exploring consequences of the MHD collapsar model for GRBs. Exploring consequences of the MHD collapsar model for GRBs.

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004head....8.2203p&link_type=abstract

American Astronomical Society, HEAD meeting #8, #22.03; Bulletin of the American Astronomical Society, Vol. 36, p.947

Astronomy and Astrophysics

Astronomy

Scientific paper

We present recent developments in numerical modeling of magnetized flows in the vicinity of a solar mass black hole in the context of the collapsar model of GRBs. We will focus on studying the nature and interaction of four flow components: polar funnel, accretion disk, disk corona, and outflow in a form of a jet or wind or both. Our previous study showed that, within the collapsar model, MHD effects alone are able to launch, accelerate and sustain a strong polar outflow. We also found that the outflow is Poynting flux-dominated. Here we will explore various initial conditions to check how robust are these results and what are their observational consequences.

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