Results 121 to 130 of about 2,379,646 (229)

X-ray and gamma ray astronomy detectors [PDF]

open access: yes, 1994
X-ray and gamma ray astronomy was made possible by the advent of space flight. Discovery and early observations of celestial x-rays and gamma rays, dating back almost 40 years, were first done with high altitude rockets, followed by Earth-orbiting ...
Austin, Robert   +2 more
core  

TAIGA -- an advanced hybrid detector complex for astroparticle physics and high energy gamma-ray astronomy [PDF]

open access: yes, 2022
The physical motivations, present status, main results in study of cosmic rays and in the field of gamma-ray astronomy as well future plans of the TAIGA-1 (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) project are presented.
Podgrudkov, D.   +76 more
core  

Gamma-Ray Telescopes: 400 Years of Astronomical Telescopes [PDF]

open access: yes, 2010
The last half-century has seen dramatic developments in gamma-ray telescopes, from their initial conception and development through to their blossoming into full maturity as a potent research tool in astronomy.
Gehrels, Neil, Cannizzo, John K.
core  

Instrumentation for gamma-ray astronomy

open access: yes, 2003
This lecture gives a comprehensive overview of the instrumentation that is employed in the field of gamma-ray astronomy. It describes the principal physical processes, detector technologies, and telescope configurations that are used in this field ...
J. Knödlseder
core   +1 more source

Explaining the Origin of TeV Gamma Rays from M87 during High and Low States

open access: yesThe Astrophysical Journal
The detection of very-high-energy gamma rays from M87 can provide crucial insights into particle acceleration and radiation mechanisms in jets. The recent observations by the Large High Altitude Air Shower Observatory detector extend the energy range of ...
Nibedita Mondal   +2 more
doaj   +1 more source

Gamma-ray-selected AGN

open access: yes, 2016
The gamma-ray band is the most energetic part of the electromagnetic spectrum. As such it is also where selection effects are most severe, as it can only be reached by the most extreme non-thermal AGN.
Giommi, Paolo, Giommi, Paolo (5268868)
core   +1 more source

Gamma ray astronomy from satellites and balloons [PDF]

open access: yes, 1986
A survey is given of gamma ray astronomy topics presented at the Cosmic Ray Conference. The major conclusions at the Cosmic Ray Conference in the field of gamma ray astronomy are given. (1) MeV-emission of gamma-ray bursts is a common feature. Variations
Schoenfelder, V.
core  

A New Measurement of the Extragalactic Background Light Using 15 yr of Fermi-large Area Telescope Data

open access: yesThe Astrophysical Journal
The extragalactic background light (EBL) from ultraviolet to infrared comprises the emission from all stars, galaxies, and actively accreting black holes in the observable Universe. A precise measurement of the EBL is critically important to probe models
Anuvab Banerjee   +7 more
doaj   +1 more source

The HiSCORE experiment and its potential for gamma-ray astronomy

open access: yes, 2013
The HiSCORE (Hundred*i Square-km Cosmic ORigin Explorer) detector aims at the exploration of the accelerator sky, using indirect air-shower observations of cosmic rays from 100 TeV to 1 EeV and gamma rays in the last remaining observation window of gamma-
Tluczykont, M.   +20 more
core   +1 more source

Study of Silicon Photomultipliers for the GRIPS Calorimeter Module

open access: yesActa Polytechnica, 2013
GRIPS is a proposed gamma-ray (200 keV to 80 MeV) astronomy mission, which incorporates a pair-creation and Compton scattering telescope, along with X-ray and infrared telescopes.
Alexei Ulyanov   +3 more
doaj  

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