Results 1 to 10 of about 70,039 (295)
Fermi-LAT results on Galactic Plane gamma-ray Transient Sources [PDF]
The Twelfth Marcel Grossmann Meeting, 2009 The Large Area Telescope on the Fermi gamma-ray Space Telescope provides unprecedented sensitivity for all-sky monitoring of gamma-ray activity. It has detected a few Galactic sources, including 2 gamma-ray binaries and a microquasar.
Chaty, Sylvain
core +6 more sources
The Astrophysical Journal, 2023 Relativistic electrons are an essential component in many astrophysical sources, and their radiation may dominate the high-energy bands. Inverse Compton (IC) emission is the radiation mechanism that plays the most important role in these bands. The basic
Dmitry Khangulyan +2 more
doaj +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
Gamma-Ray Polarimetry of Transient Sources with POLAR
, 2022 Polarization measurements of the gamma-ray component of transient sources are of great scientific interest, they are however, also highly challenging. This is due to the typical low signal to noise and the potential for significant systematic errors. Both issues are made worse by the transient nature of the events which prompt one to observe a large ...
Kole, Merlin, Sun, Jianchao
openaire +2 more sources
Neutrino alert systems for Gamma Ray Bursts and transient astronomical sources [PDF]
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2009 GRBs are the most energetic events in the Universe, associated with the death of massive stars (core-collapse supernovae) or the merging of neutron stars or black holes. Discovered in the early 1970s, their cosmological origin was demonstrated only in 1997, when the first distance was measured.
Basa, S. +5 more
openaire +4 more sources
Gamma-ray all-sky imaging with the Burst and Transient Source Experiment [PDF]
Astronomy & Astrophysics, 2004 16 pages, 10 figures, accepted for publication in Astronomy and Astrophysics.
Shaw, S. E. +8 more
openaire +2 more sources
The Astrophysical Journal Letters, 2023 GRB 221009A has been referred to as the brightest of all time (BOAT). We investigate the veracity of this statement by comparing it with a half century of prompt gamma-ray burst observations.
Eric Burns +29 more
doaj +1 more source
The Astrophysical Journal, 2023 We present a comprehensive study of 29 short gamma-ray bursts (SGRBs) observed ≈0.8−60 days postburst using Chandra and XMM-Newton. We provide the inferred distributions of the SGRB jet opening angles and true event rates to compare against neutron star ...
A. Rouco Escorial +16 more
doaj +1 more source
On the X-ray Outbursts of Transient Anomalous X-ray Pulsars and Soft Gamma-ray Repeaters [PDF]
, 2012 We show that the X-ray outburst light curves of four transient anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs), namely XTE J1810-197, SGR 0501+4516, SGR 1627-41 and CXOU J164710.2-455216, can be produced by the fallback disk model that
Alpar +30 more
core +2 more sources
The Burst and Transient Source Experiment (BATSE) Earth Occultation Catalog of Low‐Energy Gamma‐Ray Sources [PDF]
The Astrophysical Journal Supplement Series, 2004 64 pages, 17 figures, abstract abridged, Accepted by ...
Harmon, B. A. +12 more
openaire +2 more sources