Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aipc..662..379c&link_type=abstract
GAMMA-RAY BURST AND AFTERGLOW ASTRONOMY 2001: A Workshop Celebrating the First Year of the HETE Mission. AIP Conference Proceed
Astronomy and Astrophysics
Astronomy
Gamma-Ray Sources, Gamma-Ray Bursts, Gamma-Ray, Radio, Microwave
Scientific paper
Observations of the afterglow of gamma-ray burst GRB 991216 have been reported at wavelengths from radio to the X-ray band. BATSE observations at energies above 20 keV show the gamma-ray emission to consist of 2 distinct impulsive episodes separated by 15 seconds and having a total duration of about 40 seconds, followed by a long tail which persists at least 1000 s beyond the trigger time. We present temporal and spectral characteristics of both the prompt and extended emission, and explore whether the tail might be the gamma-ray signature of the afterglow.
Briggs Michael Stephen
Connaughton Valerie V.
Giblin Timothy W.
Kippen Richard Marc
Meegan Charles A.
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