Results 71 to 80 of about 4,991,129 (370)
Gamma-ray luminosity function of gamma-ray bright AGNs [PDF]
Research in Astronomy and Astrophysics, 2009 Detection of Gamma-ray emission from a class of active galactic nuclei (viz blazars), has been one of the important findings from the Compton Gamma Ray Observatory (CGRO). However, their Gamma-ray luminosity function has not been well determined. Few attempts have been made in earlier works, where BL Lacs and Flat Spectrum Radio Quasars (FSRQs) have ...
Reshmi Mukherjee +3 more
openaire +4 more sources
A Roadmap to Gamma-Ray Bursts: New Developments and Applications to Cosmology
Galaxies, 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
The Physics of Gamma-Ray Bursts
, 2018 Gamma-ray bursts (GRBs) are the most luminous explosions in the universe, which within seconds release energy comparable to what the Sun releases in its entire lifetime. The field of GRBs has developed rapidly and matured over the past decades.
Bing Zhang
semanticscholar +1 more source
The Observer's Guide to the Gamma-Ray Burst-Supernova Connection [PDF]
, 2016 We present a detailed report of the connection between long-duration gamma-ray bursts (GRBs) and their accompanying supernovae (SNe). The discussion presented here places emphasis on how observations, and the modelling of observations, have constrained ...
Z. Cano +3 more
semanticscholar +1 more source
Molecular Oncology, EarlyView.Loss of the frequently mutated chromatin remodeler ARID1A, a subunit of the SWI/SNF cBAF complex, results in less open chromatin, alternative splicing, and the failure to stop cells from progressing through the cell cycle after DNA damage in bladder (cancer) cells. Created in BioRender. Epigenetic regulators, such as the SWI/SNF complex, with important
Rebecca M. Schlösser +11 more
wiley +1 more source
Evidence for Two Distinct Populations of Kilonova-associated Gamma-Ray Bursts
The Astrophysical Journal Letters, 2023 Identification of gamma-ray burst (GRB) progenitors based on the duration of their prompt emission ( T _90 ) has faced several roadblocks recently. Long-duration GRBs (with T _90 > 2 s) have traditionally been thought to be originating from the collapse ...
Dimple, K. Misra, K. G. Arun
doaj +1 more source
Fermi LAT measurements of diffuse gamma-ray emission: results at the first-year milestone
, 2010 For more than one year the Fermi Large Area Telescope has been surveying the gamma-ray sky from 20 MeV to more than 300 GeV with unprecedented statistics and angular resolution.
Tibaldo, Luigi
core +1 more source
COMPTEL observations of cosmic gamma‐ray bursts [PDF]
, 1991 The imaging γ‐ray telescope COMPTEL on board NASA’s Compton Gamma‐Ray Observatory (GRO) has observed many cosmic gamma‐ray bursts during the early mission phase of GRO. COMPTEL records time‐resolved burst spectra over 0.1 MeV to 10 MeV energies, and, for
Bennett, K +26 more
core +2 more sources
Organohalide Lead Perovskites: More Stable than Glass under Gamma‐Ray Radiation
Advances in Materials, 2018 Organohalide metal perovskites have emerged as promising semiconductor materials for use as space solar cells and radiation detectors. However, there is a lack of study of their stability under operational conditions. Here a stability study of perovskite
Shuang Yang +5 more
semanticscholar +1 more source
Spectra and Light Curves of Gamma-Ray Burst Afterglows [PDF]
, 1997 The recently discovered gamma-ray burst afterglow is believed to be described reasonably well by synchrotron emission from a decelerating relativistic shell that collides with an external medium. To compare theoretical models with afterglow observations,
R. Sari, T. Piran, R. Narayan
semanticscholar +1 more source