Results 51 to 60 of about 59,762 (195)
GLAST: physics goals and instrument status [PDF]
, 2006 The Gamma-ray Large Area Space Telescope (GLAST) is a space-based observatory scheduled to launch in October 2007 with two instruments: (1) the GLAST Burst Monitor (GBM), sensitive to photon energies between 8 keV and 25 MeV and optimized to detect gamma-
Carson, Jennifer E.
core +4 more sources
The Radio to GeV Afterglow of GRB 221009A
The Astrophysical Journal Letters, 2023 GRB 221009A ( z = 0.151) is one of the closest known long γ -ray bursts (GRBs). Its extreme brightness across all electromagnetic wavelengths provides an unprecedented opportunity to study a member of this still-mysterious class of transients in ...
Tanmoy Laskar +29 more
doaj +1 more source
Astrophysical Neutrinos and Blazars
Universe, 2021 We review and discuss recent results on the search for correlations between astrophysical neutrinos and γ-ray-detected sources, with many extragalactic studies reporting potential associations with different types of blazars.
Paolo Giommi, Paolo Padovani
doaj +1 more source
Application of the MST clustering to the high energy gamma-ray sky. I - New possible detection of high-energy gamma-ray emission associated with BL Lac objects [PDF]
, 2015 In this paper we show an application of the Minimum Spanning Tree (MST) clustering method to the high-energy gamma-ray sky observed at energies higher than 10 GeV in 6.3 years by the Fermi-Large Area Telescope.
Bernieri, E. +3 more
core +2 more sources
GRB 080503: A Very Early Blue Kilonova and an Adjacent Nonthermal Radiation Component
The Astrophysical Journal, 2023 The temporal behavior of the very dim optical afterglow of GRB 080503 is at odds with the regular forward shock afterglow model and a sole kilonova component responsible for optical emission has been speculated in some literature.
Hao Zhou +7 more
doaj +1 more source
On the nature of the AGILE galactic transient sources [PDF]
, 2009 The Italian gamma-ray satellite AGILE has recently reported the detection of some variable high-energy sources likely of galactic origin. These sources do not have any obvious counterpart at lower energies.
Aharonian +18 more
core +3 more sources
A stacking method to study the gamma-ray emission of source samples based on the co-adding of Fermi LAT count maps [PDF]
, 2012 We present a stacking method that makes use of co-added maps of gamma-ray counts produced from data taken with the Fermi Large Area Telescope. Sources with low integrated gamma-ray fluxes that are not detected individually may become detectable when ...
Farnier, C. +4 more
core +1 more source
Gamma-ray astrophysics: roots, growth, and success [PDF]
Rendiconti Lincei. Scienze Fisiche e Naturali, 2019 This short review outlines the historic roots of high-energy astronomy in the early twentieth century with the discovery of radioactivity, cosmic ray research, and the development of detectors to measure high-energy photons. The beginning of the space age in the 1960s provided the means to observe cosmic gamma rays unhindered by the absorption and ...
openaire +2 more sources
Very high energy gamma ray astrophysics [PDF]
, 1990 The second reflector (project GRANITE) is on schedule. At present (January 1992) it and the 10 m reflector are obtaining stereoscopic views of gamma-ray air showers from the Crab Nebula which verify the expected performance of the twin reflector telescopes.
Lamb, R.C., Lewis, D.A.
openaire +2 more sources
Premerger Phenomena in Neutron Star Binary Coalescences
UniverseA variety of high-energy events can take place in the seconds leading up to a binary neutron star merger. Mechanisms involving tidal resonances, electrodynamic interactions, or shocks in mass-loaded wakes have been proposed as instigators of these ...
Arthur G. Suvorov +2 more
doaj +1 more source