Relativistic Winds from Collapsar Jets

Details Relativistic Winds from Collapsar Jets Relativistic Winds from Collapsar Jets

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004head....8.1813g&link_type=abstract

American Astronomical Society, HEAD meeting #8, #18.13; Bulletin of the American Astronomical Society, Vol. 36, p.943

Astronomy and Astrophysics

Astronomy

Scientific paper

Recent simulations of collapsar jets indicate they are Kelvin-Helmholtz unstable as they propagate through the atmosphere of the collapsar progenitor. Pinch-body wave modes that grow in the flow are important at breakout for the subsequent jet evolution into a wind. From our stability analysis we predict that pinch-body modes should develop just upstream from the jet head at breakout. We then evolve the jet flow using the relativistic wind equation for a causally disconnected radial flow from the surface of a collapsar progenitor to the distance at which the flow becomes optically thin to gamma rays.

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