Optical, IR, and Radio Follow-Up Studies of GRBs

Details Optical, IR, and Radio Follow-Up Studies of GRBs Optical, IR, and Radio Follow-Up Studies of GRBs

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...192.3310d&link_type=abstract

American Astronomical Society, 192nd AAS Meeting, #33.10; Bulletin of the American Astronomical Society, Vol. 30, p.857

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We will describe the studies of GRB afterglows done by the Caltech group. Some of the results to date include: * Establishment of the extragalactic nature of GRBs. * Detection of at least 3 host galaxies of GRBs and measurement of their redshifts. * Detection of the radio afterglow of a GRB. * Determination of physical parameters of fireballs for GRB afterglows. * Evidence for a significant range in the electromagnetic energy release in GRBs, reaching up to a few x 10(53) erg (isotropic). * Evidence for a large range (up to a few hundred) in observed optical to x-ray (or gamma -ray) flux ratios for GRB afterglows. * Evidence for dust extinction in at least one GRB afterglow.

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