GRB and supernovae in the light of Swift

Details GRB and supernovae in the light of Swift GRB and supernovae in the light of Swift

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..937..459m&link_type=abstract

SUPERNOVA 1987A: 20 YEARS AFTER: Supernovae and Gamma-Ray Bursters. AIP Conference Proceedings, Volume 937, pp. 459-468 (2007).

Astronomy and Astrophysics

Astronomy

Astronomical Observations, Supernovae, Gamma-Ray Sources, Gamma-Ray Bursts, Black Holes

Scientific paper

Some long gamma-ray bursts are connected with supernovae, such as GRB060218 with SN2006aj, recently discovered by Swift. In such GRB/SN, the prompt thermal and non-thermal, and the afterglow X-ray emission, as well as the early (t<1 d) optical-UV emission, can all be explained by a model in which a radiation-mediated shock propagates through a compact progenitor star into a dense wind. The thermal X-rays would signal the shock break-out through the wind, and the non-thermal X-ray and γ-rays may be due, at least partly, to bulk Comptonization in the semi-relativistic SN ejecta. In fall-back collapsar scenarios, X-ray precursors may be associated with an initial proto-neutron star, followed by a subsequent black hole leading to the main burst.

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