Results 11 to 20 of about 19,895 (210)
GeV Analysis of Mixed Morphology Supernova Remnants Interacting with Molecular Clouds [PDF]
, 2012 The first remnants detected by the Fermi Gamma-ray Space Telescope were of the type of mixed-morphology supernova remnants interacting with molecular clouds.
Ercan, E. Nihal, Ergin, Tülün
core +2 more sources
Fully depleted charge‐coupled device design and technology development
Astronomische 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
SEARCH FOR DARK MATTER WITH GAMMA-RAYS: A REVIEW
Acta 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
Characterization of Thunderstorm Cells Producing Observable Terrestrial Gamma‐Ray Flashes
Journal 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
Fermi: Monitoring the Gamma-Ray Universe
Galaxies, 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
A tool to understand emission mechanisms of blazars through their high‐energy gamma‐ray emission
Astronomische Nachrichten, Volume 344, Issue 6, August 2023., 2023 The blazar SED is characterized by two energy components. Evidence suggests that the low‐energy component is generated by the synchrotron mechanism, but for the high‐energy component, the mechanism is still uncertain. Two main models have been proposed to explain this emission. According to the leptonic model, a correlation between the emission of both
Mabel Osorio +3 more
wiley +1 more source
Latest Results from the Fermi Gamma-Ray Telescope
Acta 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
The 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
Investigating the region of 3C 397 in High Energy Gamma rays [PDF]
, 2017 We investigate the supernova remnant (SNR) 3C 397 and its neighboring pulsar PSR J1906+0722 in high energy gamma rays by using nearly six years of archival data of {\it Large Area Telescope} on board {\it Fermi Gamma Ray Space Telescope} (Fermi-LAT). The
Bhattacharjee, Pooja +4 more
core +2 more sources
Fast γ-ray Variability: A Common Feature and Powerful Probe for Jetted AGNs
Galaxies, 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