Hypernovae

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Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe...2h&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

The recent discoveries of gamma-ray burst afterglows in the radio, optical, and X-ray bands led to the detection of several quiescent counterparts. Some of these objects were identified as star forming galaxies at large redshifts. This not only proved the cosmological origin of gamma-ray bursts, which was anticipated from their statistical properties, but pushed their distance scale to the extreme. The burst luminosities suggested by these observations exceed those associated with supernovae by several orders of magnitude (beaming could lower the values significantly), which suggested the name HYPERNOVA for this phenomenon. However, this is not to be confused with a model for the central engine driving the burst. I will discuss recent developments of burst theories.

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