Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..937..480p&link_type=abstract
SUPERNOVA 1987A: 20 YEARS AFTER: Supernovae and Gamma-Ray Bursters. AIP Conference Proceedings, Volume 937, pp. 480-487 (2007).
Astronomy and Astrophysics
Astronomy
1
Gamma-Ray Sources, Gamma-Ray Bursts, Astronomical Observations
Scientific paper
The advent of the Swift mission for Gamma-Ray Bursts (GRBs) in late 2004 has more than doubled the existing sample of detected optical counterparts. The rapid dissemination of the accurate BAT and XRT localizations has allowed ground-based telescopes, especially the automatic ones, to slew timely to the GRB positions and to scan them efficiently in search of an afterglow. For about 25% of the Swift GRBs, the onboard UVOT instrument has also provided an early counterpart detection in the optical, and occasionally in the near-UV. There are now about 200 detected GRB optical afterglows, of which nearly 100 have a redshift measurement. I will review here some of the highlights in this field during the Swift era, with particular emphasis on the early (minutes to hours after explosion) optical light curves, on the afterglows of short GRBs, and on the supernova-GRB connection.
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