Results 21 to 30 of about 4,991,129 (370)

Gamma-ray astrophysics [PDF]

open access: yesThe European Physical Journal Plus, 2018
Accepted for publication on EPJ ...
De Angelis A., Mallamaci M.
openaire   +3 more sources

On the Properties of Inverse Compton Spectra Generated by Upscattering a Power-law Distribution of Target Photons

open access: yesThe 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

GAMMA-400 gamma-ray observatory [PDF]

open access: yesProceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015), 2016
The GAMMA-400 gamma-ray telescope with excellent angular and energy resolutions is designed to search for signatures of dark matter in the fluxes of gamma-ray emission and electrons + positrons. Precision investigations of gamma-ray emission from Galactic Center, Crab, Vela, Cygnus, Geminga, and other regions will be performed, as well as diffuse gamma-
Topchiev, N. P.   +73 more
openaire   +5 more sources

THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION [PDF]

open access: yes, 2009
The Large Area Telescope (Fermi/LAT, hereafter LAT), the primary instrument on the Fermi Gamma-ray Space Telescope (Fermi) mission, is an imaging, wide field-of-view (FoV), high-energy γ-ray telescope, covering the energy range from below 20 MeV to more ...
W. Atwood   +239 more
semanticscholar   +1 more source

The Upcoming GAMMA-400 Experiment

open access: yesUniverse, 2023
The upcoming GAMMA-400 experiment will be implemented aboard the Russian astrophysical space observatory, which will be operating in a highly elliptical orbit over a period of 7 years to provide new data on gamma-ray emissions and cosmic-ray electron ...
Sergey I. Suchkov   +18 more
doaj   +1 more source

Gamma-ray binaries [PDF]

open access: yesProceedings of Multifrequency Behaviour of High Energy Cosmic Sources - XIII — PoS(MULTIF2019), 2020
Conference Proceedings: "Multifrequency Behaviour of High Energy Cosmic Sources" - XIII ...
Denys Malyshev, Maria Chernyakova
openaire   +3 more sources

A Stochastic Approach to Reconstruct Gamma-Ray-burst Light Curves

open access: yesThe Astrophysical Journal Supplement Series, 2023
Gamma-ray bursts (GRBs), as they are observed at high redshift ( z = 9.4), are vital to cosmological studies and investigating Population III stars. To tackle these studies, we need correlations among relevant GRB variables with the requirement of small ...
Maria G. Dainotti   +6 more
doaj   +1 more source

The Radio and Gamma-Ray Luminosities of Blazars [PDF]

open access: yes, 2001
Based on the $\gamma$-ray data of blazars in the third EGRET catalog and radio data at 5 GHz, we studied the correlation between the radio and $\gamma$-ray luminosities using two statistical methods.
Cheng, K. S., Fan, J. H., Zhang, L.
core   +3 more sources

An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM Detection of GRB 170817A [PDF]

open access: yes, 2017
On 2017 August 17 at 12:41:06 UTC the Fermi Gamma-ray Burst Monitor (GBM) detected and triggered on the short gamma-ray burst (GRB) 170817A. Approximately 1.7 s prior to this GRB, the Laser Interferometer Gravitational-wave Observatory triggered on a ...
A. Goldstein   +31 more
semanticscholar   +1 more source

GAMMA RAY BURST FOLLOW-UPS WITH BOOTES

open access: yesOdessa Astronomical Publications, 2014
The Burst Observer and Optical Transient Exploring System (BOOTES), is a global robotic observatory network, which started in 1998 with Spanish leadership devoted to study optical emissions from gamma ray bursts (GRBs) that occur in the Universe.
Sergey Guziy   +16 more
doaj   +1 more source

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