Results 1 to 10 of about 68,672 (267)

Evidence of an upper ionospheric electric field perturbation correlated with a gamma ray burst [PDF]

open access: yesNature Communications, 2023
Earth’s atmosphere, whose ionization stability plays a fundamental role for the evolution and endurance of life, is exposed to the effect of cosmic explosions producing high energy Gamma-ray-bursts.
Mirko Piersanti   +70 more
doaj   +2 more sources

The GRB221009A gamma-ray burst as revealed by the gamma-ray spectrometer onboard the KPLO (Danuri) [PDF]

open access: yesScientific Reports
The strongest gamma-ray burst (GRB) of the century, GRB20221009A, has been detected by the Korean Pathfinder Lunar Orbiter Gamma-ray Spectrometer (KGRS) instrument onboard the Korean Pathfinder Lunar Orbiter (KPLO).
K. J. Kim   +11 more
doaj   +2 more sources

A peculiar low-luminosity short gamma-ray burst from a double neutron star merger progenitor [PDF]

open access: yesNature Communications, 2018
A short-duration gamma-ray burst was detected along with a double neutron start merger gravitational wave by LIGO-Virgo on August 17th 2017. Here, the authors show that the fluence and spectral peak energy of this event fall into the lower portion of the
B.-B. Zhang   +17 more
doaj   +2 more sources

Gamma-Ray Bursts [PDF]

open access: yesScience, 2012
Stellar Explosions Stars that are born with masses greater than eight times that of the Sun end their lives in luminous explosions known as supernovae. Over the past decade, access to improved sky surveys has revealed rare types of supernovae that are much more luminous than any of those that were known before.
Gehrels, Neil, Meszaros, Peter
  +7 more sources

GAMMA-RAY BURSTS [PDF]

open access: yesParticles, Strings and Cosmology (PASCOS 99), 2000
Ultra-high-energy, >10^19 eV, cosmic-ray and high energy, ~10^14 eV, neutrino production in GRBs is discussed in the light of recent GRB and cosmic-ray observations. Emphasis is put on model predictions that can be tested with operating and planned cosmic-ray and neutrino detectors, and on the prospects of testing for neutrino properties.
Kevin Hurley, Robert Mochkovitch
openaire   +3 more sources

The Structure of Gamma Ray Burst Jets

open access: yesGalaxies, 2022
Due to relativistic bulk motion, the structure and orientation of gamma-ray burst (GRB) jets have a fundamental role in determining how they appear.
Om Sharan Salafia, Giancarlo Ghirlanda
doaj   +1 more source

A Roadmap to Gamma-Ray Bursts: New Developments and Applications to Cosmology

open access: yesGalaxies, 2021
Gamma-ray bursts are the most powerful explosions in the universe and are mainly placed at very large redshifts, up to z≃9. In this short review, we first discuss gamma-ray burst classification and morphological properties.
Orlando Luongo, Marco Muccino
doaj   +1 more source

Critical Tests of Leading Gamma Ray Burst Theories

open access: yesUniverse, 2022
It has been observationally established that supernovae (SNe) of Type Ic produce long duration gamma-ray bursts (GRBs) and that neutron star mergers generate short hard GRBs.
Shlomo Dado   +2 more
doaj   +1 more source

Swift/UVOT: 18 Years of Long GRB Discoveries and Advances

open access: yesUniverse, 2023
The Neil Gehrels Swift Observatory (Swift) has been in operation for 18 years. The Ultra-Violet/Optical Telescope (UVOT) onboard Swift was designed to capture the earliest optical/UV emission from gamma-ray bursts (GRBs), spanning the first few minutes ...
Sam Oates
doaj   +1 more source

Deep Multimessenger Search for Compact Binary Mergers in LIGO, Virgo, and Fermi/GBM Data from 2016–2017

open access: yesThe Astrophysical Journal, 2023
GW170817–GRB 170817A provided the first observation of gravitational waves from a neutron star merger with associated transient counterparts across the entire electromagnetic spectrum. This discovery demonstrated the long-hypothesized association between
Marion Pillas   +9 more
doaj   +1 more source

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