A. A. Kokomov
A5088960061- Gamma-ray bursts and supernovae
- Astro and Planetary Science
- Pulsars and Gravitational Waves Research
- Astronomy and Astrophysical Research
- Astrophysical Phenomena and Observations
- Astrophysics and Cosmic Phenomena
- Stellar, planetary, and galactic studies
- Ionosphere and magnetosphere dynamics
- Geological and Geophysical Studies
- Particle Detector Development and Performance
- Solar and Space Plasma Dynamics
- SAS software applications and methods
- Nuclear Physics and Applications
Ioffe Institute
2014-2022
Physico-Technical Institute
2013
GRB 110918A is the brightest long detected by Konus-WIND during its 19 years of continuous observations and most luminous ever observed since beginning cosmological era in 1997. We report on final IPN localization this event detailed multiwavelength study with a number space-based instruments. The prompt emission characterized typical duration, moderare $E_{peak}$ time-integrated spectrum, strong hard-to-soft evolution. high energy fluence yields, at z=0.984, huge isotropic-equivalent...
Abstract We examine a sample of 2301 gamma-ray bursts, detected by Konus-Wind in the triggered mode between 1994 and 2017 localized interplanetary network (IPN), for evidence gravitational lensing. utilize all available burst (GRB) data: time histories, localizations, energy spectra. employ common IPN techniques to find quantify similarities light curves 2,646,150 pairs, pairs with significant similarities, we their localizations determine whether they are consistent origin. For that...
Long gamma-ray bursts (GRBs) are believed to originate from core collapse of massive stars. High-redshift GRBs can probe the star formation and reionization history early universe, but their detection remains rare. Here we report a GRB triggered in 0.5--4 keV band by Wide-field X-ray Telescope (WXT) on board Einstein Probe (EP) mission, designated as EP240315a, whose bright peak was also detected Swift Burst Alert Konus-Wind through off-line analyses. At redshift $z=4.859$, EP240315a showed...
Abstract We present the catalog of InterPlanetary Network (IPN) localizations for 199 short-duration gamma-ray bursts (sGRBs) detected by Konus-Wind (KW) experiment between 2011 January 1 and 2021 August 31, which extends initial sample IPN-localized KW sGRBs to 495 events. most comprehensive IPN localization data on these events, including probability sky maps in Hierarchical Equal Area isoLatitude Pixelization format.
The fast spectral variability of gamma-ray bursts (GRBs) with known redshifts is investigated using the Konus-Wind experiment data in time scale up to 2ms. Tracks these GRBs luminosity-peak energy plane (Liso,EP ) rest-frame are obtained. distribution maximum values an instantaneous luminosity GRB’s rest frame Liso derived for such depending on peak EP.