Extremely long hard bursts observed by Konus-Wind
V. Pal'shin, R. Aptekar, D. Frederiks, S. Golenetskii, V. Il'Inskii,, E. Mazets, K. Yamaoka, M. Ohno, K. Hurley, T. Sakamoto, P. Oleynik, M., Ulanov, I. G. Mitrofanov, D. Golovin, M. L. Litvak, A. B. Sanin, W. Boynton,, C. Fellows, K. Harshman, C. Shinohara, R. Starr
TL;DR
This paper reports on the observation of extremely long, hard gamma-ray bursts by Konus-Wind, highlighting their unique temporal profiles and discussing potential origins of these rare events.
Contribution
It presents detailed observations of two exceptionally long gamma-ray bursts and explores possible explanations for their unusual durations and characteristics.
Findings
GRB 060814B had a ~40-minute long hard emission pulse.
Weak emission persisted hours after the initial burst.
Similarities and differences with GRB 971208 are discussed.
Abstract
We report the observations of the prompt emission of the extremely long hard burst, GRB 060814B, discovered by Konus-Wind and localized by the IPN. The observations reveal a smooth, hard, ~40-min long pulse followed by weaker emission seen several hours after the burst onset. We also present the Konus-Wind data on similar burst, GRB 971208, localized by BATSE/IPN. And finally we discuss the different possible origins of these unusual events.
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