Results 1 to 10 of about 213,100 (298)

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   +4 more sources

A nearby long gamma-ray burst from a merger of compact objects. [PDF]

open access: yesNature, 2022
Gamma-ray bursts (GRBs) are flashes of high-energy radiation arising from energetic cosmic explosions. Bursts of long (greater than two seconds) duration are produced by the core-collapse of massive stars1, and those of short (less than two seconds ...
Troja E   +23 more
europepmc   +3 more sources

A lanthanide-rich kilonova in the aftermath of a long gamma-ray burst [PDF]

open access: yesNature, 2023
Observationally, kilonovae are astrophysical transients powered by the radioactive decay of nuclei heavier than iron, thought to be synthesized in the merger of two compact objects1-4.
Yang Y   +26 more
europepmc   +2 more sources

A Kilonova Following a Long-Duration Gamma-Ray Burst at 350 Mpc [PDF]

open access: yesNature, 2022
Gamma-ray bursts (GRBs) are divided into two populations1,2; long GRBs that derive from the core collapse of massive stars (for example, ref. 3) and short GRBs that form in the merger of two compact objects4,5.
Rastinejad J   +34 more
europepmc   +2 more sources

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

Gamma-Ray Burst Prompt Correlations [PDF]

open access: yesAdvances in Astronomy, 2018
The mechanism responsible for the prompt emission of gamma-ray bursts (GRBs) is still a debated issue. The prompt phase-related GRB correlations can allow discriminating among the most plausible theoretical models explaining this emission.
M. G. Dainotti   +2 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 tera–electron volt afterglow from a narrow jet in an extremely bright gamma-ray burst [PDF]

open access: yesScience, 2023
Some gamma-ray bursts (GRBs) have a tera–electron volt (TeV) afterglow, but the early onset of this has not been observed. We report observations with the Large High Altitude Air Shower Observatory (LHAASO) of the bright GRB 221009A, which ...
Z. Cao   +277 more
semanticscholar   +1 more source

A long-duration gamma-ray burst with a peculiar origin [PDF]

open access: yesNature, 2022
It is generally believed that long-duration gamma-ray bursts (GRBs) are associated with massive star core collapse1, whereas short-duration GRBs are associated with mergers of compact star binaries2.
J. Yang   +9 more
semanticscholar   +1 more source

The Fermi-GBM Gamma-Ray Burst Spectral Catalog: 10 yr of Data [PDF]

open access: yesAstrophysical Journal, 2021
We present the systematic spectral analyses of gamma-ray bursts (GRBs) detected by the Fermi Gamma-Ray Burst Monitor during its first ten years of operation.
S. Poolakkil   +19 more
semanticscholar   +1 more source

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