A structured jet explains the extreme GRB 221009A

B O'Connor, E Troja, G Ryan, P Beniamini… - Science …, 2023 - science.org
Long-duration gamma-ray bursts (GRBs) are powerful cosmic explosions, signaling the
death of massive stars. Among them, GRB 221009A is by far the brightest burst ever …

Properties of the extremely energetic grb 221009a from konus-wind and srg/art-xc observations

D Frederiks, D Svinkin, AL Lysenko… - The Astrophysical …, 2023 - iopscience.iop.org
We report on Konus-WIND (KW) and Mikhail Pavlinsky Astronomical Roentgen Telescope–
X-ray Concentrator (ART-XC) observations and analysis of a nearby GRB 221009A, the …

GRANDMA and HXMT Observations of GRB 221009A: The Standard Luminosity Afterglow of a Hyperluminous Gamma-Ray Burst—In Gedenken an David Alexander …

DA Kann, S Agayeva, V Aivazyan… - The Astrophysical …, 2023 - iopscience.iop.org
Object GRB 221009A is the brightest gamma-ray burst (GRB) detected in more than 50 yr of
study. In this paper, we present observations in the X-ray and optical domains obtained by …

A sensitive search for supernova emission associated with the extremely energetic and nearby GRB 221009A

GP Srinivasaragavan, B O'Connor… - The Astrophysical …, 2023 - iopscience.iop.org
We report observations of the optical counterpart of the long gamma-ray burst GRB
221009A. Due to the extreme rarity of being both nearby (z= 0.151) and highly energetic (E …

Limit on supernova emission in the brightest gamma-ray burst, GRB 221009A

M Shrestha, DJ Sand, KD Alexander… - The Astrophysical …, 2023 - iopscience.iop.org
We present photometric and spectroscopic observations of the extraordinary gamma-ray
burst (GRB) 221009A in search of an associated supernova. Some past GRBs have shown …

GRB 221009A/SN 2022xiw: A Supernova Obscured by a Gamma-Ray Burst Afterglow?

DF Kong, XG Wang, WK Zheng, HJ Lü… - The Astrophysical …, 2024 - iopscience.iop.org
We present optical photometry for the afterglow of GRB 221009A, in some respects the most
extraordinary gamma-ray burst (GRB) ever observed. Good quality in the R-band light curve …

Multiwavelength Afterglow Analysis of GRB 221009A: Unveiling the Evolution of a Cooling Break in a Wind-like Medium

D Tak, ZL Uhm, GSH Paek, M Im… - The Astrophysical …, 2024 - iopscience.iop.org
Gamma-ray bursts (GRBs) are the most energetic explosions in the Universe, and their
afterglow emission provides an opportunity to probe the physics of relativistic shock waves …

[PDF][PDF] Lack of Bright Supernova Emission in the Brightest Gamma-ray Burst, GRB~ 221009A

M Shrestha, DJ Sand, KD Alexander, KA Bostroem… - arxiv e-prints, 2023 - lss.fnal.gov
We present photometric and spectroscopic observations of the extraordinary gamma-ray
burst (GRB) 221009A in search of an associated supernova. Some past GRBs have shown …

Binary neutron star mergers in the multi-messenger era: very high energy afterglows and progenitor evolutionary tracks

C Pellouin - 2023 - theses.hal.science
In 2017, the multi-messenger astronomy era with gravitational waves was opened with the
detection of a binary neutron star merger-GW 170817-and its electromagnetic counterparts …