Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..565..471d&link_type=abstract
YOUNG SUPERNOVA REMNANTS: Eleventh Astrophysics Conference. AIP Conference Proceedings, Volume 565, pp. 471-478 (2001).
Astronomy and Astrophysics
Astrophysics
Gamma-Ray Sources, Gamma-Ray Bursts, Supernova Remnants, Star Formation
Scientific paper
Following the discovery of a supernova SN 1998bw very probably associated with the γ-ray burst source GRB980425 the term ``hypernova'' has been re-defined to embrace SNe of high energy associated with GRB's. Here we discuss in some detail the observed and inferred properties of SN 1998bw and its relation to other previously observed SNe to which it may be related. A brief account is given of other relatively nearby SNe where a possible association with GRB's has been suggested ex post facto. There are also cases where less direct but suggestive evidence for a SN/GRB association has been adduced for well observed GRB events and their associated afterglow. These are also referred to. Our conclusion is that observationally we are still near the beginning of understanding which types of SNe give rise to GRB's and how frequently they occur. Nevertheless objects such as SN1998bw surely give rise to young supernova remnants with high velocity oxygen-enriched filaments. .
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