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Originally Posted by Cougar
Are you mixing pre- and post-1991 information? Most of the "hypernovae" or gamma-ray bursts ARE at high redshift. This NASA article explains what had been learned, at least up to 1998. Where are they? They're out there at high redshift, as the article gives evidence for. |
That is exactly what Jerry said.
Observing a GRB associated with an apparent Ia supernova at high redshift would support Jerry's theory that it is really a mis-classified hypernova.
Also, 1998 is a bit early, as the major event conclusively linking hypernovae to GRBs was in 2003:
http://www.eso.org/outreach/press-re.../pr-16-03.html
Of course, nothing has ruled out GRBs being caused by other sources (particularly the short, < 2 second bursts), which may account for high redshift GRBs that have no associated hypernova. Limitations of detection are more likely the culprit, as linking a GRB to anything takes some serious coordination.