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Chromatic Afterglow of GRB 200829A
N. S. Pankov, A. S. Pozanenko, P. Yu. Minaev +16
We present the results of our analysis of multiwavelength observations for the long gamma-ray burst GRB 200829A. The burst redshift has been determined ph…
The peculiar short-duration GRB 200826A and its supernova
A. Rossi, B. Rothberg, E. Palazzi +31
Gamma-ray bursts (GRBs) are classified as long and short events. Long GRBs (LGRBs) are associated with the end states of very massive stars, while short GRBs (SGRBs) are linked to…
GRB 140423A: A Case of Stellar Wind to Interstellar Medium Transition in the Afterglow
Long Li, Xiang-Gao Wang, WeiKang Zheng +14
We present very early ground-based optical follow-up observations of GRB~140423A, which was discovered by \emph{Swift}/BAT and by {\it Fermi}/GBM. Its broadband afterglow was monit…
New Gamma-Ray Bursts Found in the Archival Data from the IBIS/ISGRI Telescope of the INTEGRAL Observatory
I. V. Chelovekov, S. A. Grebenev, A. S. Pozanenko +1
A systematic search for cosmic gamma-ray bursts (GRBs) and other short hard X-ray events in the archival data from the IBIS/ISGRI telescope of the INTEGRAL observatory over 2003-20…
Observation of the second LIGO/Virgo event connected with binary neutron star merger S190425z in the gamma-ray range
A. S. Pozanenko, P. Yu. Minaev, S. A. Grebenev +1
Observations of the gravitational-wave (GW) event S190425z registered by the LIGO/Virgo detectors with the Anti-Coincidence Shield (ACS) of the gamma-ray spectrometer SPI aboard th…
The Ep,i - Eiso correlation: type I gamma-ray bursts and the new classification method
P. Y. Minaev, A. S. Pozanenko
We present the most extensive sample of 45 type I (short) and 275 type II (long) gamma-ray bursts (GRB) with known redshift to investigate the correlation between the rest frame pe…