Results 171 to 179 of about 26,003 (179)

Some highlights of the first four years of the Fermi Gamma-ray Space Telescope

Frontiers of Physics, 2013
The Fermi Gamma-ray Space Telescope, formerly called GLAST, measures the cosmic gamma-ray flux in the energy range 8 keV to > 300 GeV. In addition to breakthrough capabilities in energy coverage and localization, the very large field of view enables observations of 20% of the sky at any instant, and the entire sky on a timescale of a few hours.
S. Ritz
semanticscholar   +3 more sources

First light from the Vela pulsar with the Fermi Gamma‐ray Space Telescope

AIP Conference Proceedings, 2009
The Fermi Gamma‐ray Space Telescope, launched in June 2008, is an international space mission entirely devoted to the study of the high‐energy gamma rays from the Universe. The main instrument aboard Fermi is the Large Area Telescope (LAT), a pair conversion telescope equipped with the state‐of‐the art in gamma‐ray detectors technology.
M. Razzano
semanticscholar   +3 more sources

Fermi Gamma‐ray Space Telescope, Introduction and Highlights from the First Eight Months

AIP Conference Proceedings, 2009
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 ...
R. Johnson
semanticscholar   +3 more sources

Fermi Gamma-ray Space Telescope: Highlights of the GeV Sky

Nuclear Physics B - Proceedings Supplements, 2011
Because high-energy gamma rays can be produced by processes that also produce neutrinos. the gamma-ray survey of the sky by the Fermi Gamma-ray Space Telescope offers a view of potenl ial targds for neutrino observations. Gamma-ray bursts. active galactic nuclei, and supernova remnants are all sites where hadronic, neutrino-producing interactions are ...
openaire   +2 more sources

Viewing the High-Energy Universe with the Fermi Gamma-ray Space Telescope

Frontiers in Optics 2010/Laser Science XXVI, 2010
The Fermi Gamma-ray Space Telescope has completed 2 years of observations of the entire sky from 10 keV to more than 300 GeV, providing a new view of the high-energy Universe.
openaire   +2 more sources

Simulation study of the performance of the Very Large Area gamma-ray Space Telescope

Nuclear Science and Techniques
The Very Large Area gamma-ray Space Telescope (VLAST) is a mission concept proposed to detect gamma-ray photons through both the Compton scattering and electron-positron pair production mechanisms, enabling the detection of photons with energies ranging ...
Xu Pan, Wei Jiang, Chuan Yue, S. Lei, Yu-Xin Cui, Qiang Yuan   +5 more
semanticscholar   +1 more source

Status of the technology of the current space missions including the Fermi gamma-ray space telescope

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2010
Abstract We review the status of X-rays and γ -rays space missions operational in 2009. We provide highlights of the current semiconductor technology instrumentation and briefly discuss challenges to be addressed by future missions.
openaire   +2 more sources

Fermi Gamma-ray Space Telescope Observations of the Gamma-ray Outburst from 3C 454.3 in November 2010

2011
The flat-spectrum radio quasar 3C 454.3 underwent an extraordinary 5-day gamma-ray outburst in November 2010 where the daily flux measured with the Fermi Large Area Telescope (LAT) at photon energies E>100 MeV reached (66+/-2) x 10^-6 ph cm^-2 s^-1. The 3-hr peak flux corresponded to an apparent isotropic luminosity of (2.1+/-0.2)x10^50 erg s^-1, the ...
openaire   +1 more source

THE FERMI GAMMA-RAY SPACE TELESCOPE: PERFORMANCE AND RESULTS AT THE 1-YEAR MILESTONE

Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications, 2010
openaire   +2 more sources