Results 21 to 30 of about 20,416 (210)

SEARCH FOR DARK MATTER WITH GAMMA-RAYS: A REVIEW

open access: yesActa Polytechnica, 2013
Successfully launched in June 2008, the Fermi Gamma-ray Space Telescope, formerly named GLAST, has been observing the high-energy gamma-ray sky with unprecedented sensitivity inthe 20MeV ÷ 300 GeV energy range and electrons + positrons in the 7 GeV ...
Aldo Morselli
doaj   +1 more source

Fully depleted charge‐coupled device design and technology development

open access: yesAstronomische Nachrichten, Volume 344, Issue 8-9, October-November 2023., 2023
Abstract We describe the advancement of fully depleted charge‐coupled device (CCD) technology for scientific applications. Recent efforts on 650–725 μ$$ \mu $$m‐thick CCDs for direct dark‐matter and radiation detection with single‐electron sensitivity are described, as well as the technology transfer of the fully depleted CCD technology to 200 mm‐wafer
Stephen E. Holland
wiley   +1 more source

Fermi: Monitoring the Gamma-Ray Universe

open access: yesGalaxies, 2018
Since 2008, the Large Area Telescope and the Gamma-ray Burst Monitor on the Fermi Gamma-ray Space Telescope have been monitoring the entire sky at energies from about 8 keV to more than 1 TeV.
David J. Thompson
doaj   +1 more source

Characterization of Thunderstorm Cells Producing Observable Terrestrial Gamma‐Ray Flashes

open access: yesJournal of Geophysical Research: Atmospheres, Volume 128, Issue 17, 16 September 2023., 2023
Abstract The meteorological conditions required for the production of Terrestrial Gamma‐ray Flashes (TGFs) are not well understood. Particularly, the link between TGF production, meteorology, and weather severity is poorly characterized with most works focusing on only a small set of TGF events or isolated storms.
Lasse Skaaning Husbjerg   +7 more
wiley   +1 more source

Latest Results from the Fermi Gamma-Ray Telescope

open access: yesActa Polytechnica CTU Proceedings, 2014
Can we learn about New Physics with astronomical and astro-particle data? Since its launch in 2008, the Large Area Telescope, onboard of the Fermi Gamma-ray Space Telescope, has detected the largest amount of gamma rays in the 20 MeV - 300 GeV energy ...
Aldo Morselli
doaj   +1 more source

Identifying the Gamma-Ray Emission of the Nearby Galaxy M83

open access: yesThe Astrophysical Journal, 2023
We report on the detection of a γ -ray source at the position of the nearby star-forming galaxy (SFG) M83, which is found from our analysis of 14 yr of the data obtained with the Large Area Telescope on board the Fermi Gamma-ray Space Telescope (Fermi ...
Yi Xing, Zhongxiang Wang
doaj   +1 more source

Fermi Gamma-ray Space Telescope: high-energy results from the first year [PDF]

open access: yesReports on Progress in Physics, 2010
39 pages, 16 ...
Michelson, Peter F.   +2 more
openaire   +2 more sources

Fast γ-ray Variability: A Common Feature and Powerful Probe for Jetted AGNs

open access: yesGalaxies, 2018
Among the highly dynamical non-thermal universe, flashes of γ-ray photons from jets in active galactic nuclei (AGNs) are always attractive. Not only are they extraordinary observational phenomena, but they also become powerful probes of the jets ...
Neng-hui Liao
doaj   +1 more source

High-energy gamma- and cosmic-ray observations with future space-based GAMMA-400 gamma-ray telescope [PDF]

open access: yesEPJ Web of Conferences, 2019
The future space-based GAMMA-400 gamma-ray telescope will be installed on the Navigator platform of the Russian Astrophysical Observatory. A highly elliptical orbit will provide observations for 7-10 years of many regions of the celestial sphere ...
Topchiev N.P.   +17 more
doaj   +1 more source

Recent Results from the Fermi Gamma-ray Space Telescope [PDF]

open access: yesProceedings of 35th International Conference of High Energy Physics — PoS(ICHEP 2010), 2011
The Fermi Gamma-ray Space Telescope, formerly named GLAST, is a mission in low-Earth orbit to observe gamma rays from the cosmos in the broad energy range from 20 MeV to >300 GeV, with supporting observations of gamma-ray bursts from 8 keV to 30 MeV. The telescope far surpasses previous generations in its ability to detect and localize faint gamma-ray ...
openaire   +1 more source

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