GRB 080407: an ultra-long burst discovered by the IPN
V. Pal'shin, K. Hurley, J. Goldsten, I. G. Mitrofanov, W. Boynton, A., von Kienlin, J. Cummings, M. Feroci, R. Aptekar, D. Frederiks, S., Golenetskii, E. Mazets, D. Svinkin, D. Golovin, M. L. Litvak, A. B. Sanin, C., Fellows, K. Harshman, R. Starr, A. Rau, V. Savchenko, X. Zhang
TL;DR
This paper reports the detection and analysis of GRB 080704, an ultra-long gamma-ray burst with two emission episodes separated by a long quiescent period, providing insights into its temporal and spectral properties.
Contribution
It presents detailed observations of a rare ultra-long GRB with a unique two-episode structure, expanding understanding of such phenomena.
Findings
Total duration of about 2100 seconds
Two emission episodes separated by ~1500 seconds
Comparison with other ultra-long GRBs
Abstract
We present observations of the extremely long GRB 080704 obtained with the instruments of the Interplanetary Network (IPN). The observations reveal two distinct emission episodes, separated by a ~1500 s long period of quiescence. The total burst duration is about 2100 s. We compare the temporal and spectral characteristics of this burst with those obtained for other ultra-long GRBs and discuss these characteristics in the context of different models.
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Taxonomy
TopicsGamma-ray bursts and supernovae · Astro and Planetary Science · Stellar, planetary, and galactic studies