Physics – Nuclear Physics
Scientific paper
Oct 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..dnp2wb002m&link_type=abstract
American Physical Society, Division of Nuclear Physics Fall Meeting, October 30 - November 1, 2003, Tucson, Arizona, MEETING ID:
Physics
Nuclear Physics
Scientific paper
Long-duration gamma-ray bursts constitute the majority of gamma-ray bursts and are now known to be distributed isotropically throughout the universe, many at high redshift. They may be the most energetic phenomena in astrophysics, and seem to require for their explanation narrow jets with highly relativisitic "gammas" of 100-200. Furthermore, they are accompanied by long duration afterglows in the optical, some of which are superposed with coeval supernova light curves. The possible association of a subset of supernovae with gamma-ray bursts has been just one of the exciting recent twists in the gamma-ray burst saga, as has the detection for one gamma-ray burst of the polarization of its gamma-rays. In this talk, I will attempt both a theoretical synthesis of this extraordinary phenomenon and to put gamma-ray bursts into the larger astrophysical context.
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