منابع مشابه
Point Sources of GeV Gamma - Rays
A catalog of gamma-ray sources based on photons with energies greater than 1 GeV has been developed from observations taken by the EGRET instrument o f the Compton Gamma Ray Observatory. The data are taken from the 4.5 years of observation available in the public data archive. We emphasize sources which are detected using the entire database without regard to any possible transient o r v ariabl...
متن کاملStudies of Cosmic Rays with GeV Gamma Rays
We describe the role of GeV gamma-ray observations with GLAST-LAT (Gamma-ray Large Area Space Telescope Large Area Telescope) in identifying interaction sites of cosmic-ray proton (or hadrons) with interstellar medium (ISM). We expect to detect gamma rays from neutral pion decays in high-density ISM regions in the Galaxy, Large Magellanic Cloud, and other satellite galaxies. These gamma-ray sou...
متن کاملEgret Observations of Gamma Rays from Point Sources with Galactic Latitude +10 < B < +40
The EGRET instrument aboard the Compton Gamma Ray Observatory (CGRO) has completed the rst all-sky survey in high-energy gamma rays and has repeatedly viewed selected portions of the sky. Analysis of the region with galactic latitude +10 < b < +40 indicates the presence of nineteen point sources, including nine which can be identiied as active galactic nuclei, some of which have been reported p...
متن کاملThe GeV-TeV Connection in galactic gamma-ray sources
Recent observations by atmospheric Cherenkov telescopes such as H.E.S.S. and MAGIC have revealed a large number of new sources of very-high-energy (VHE) gamma-rays above 100 GeV, mostly concentrated along the Galactic plane. At lower energies (100 MeV – 10 GeV) the satellite-based instrument EGRET revealed a population of sources clustering along the Galactic Plane. Given their adjacent energy ...
متن کاملSources of Cosmic Rays and Galactic Diffuse Gamma Radiation
The diffuse galactic gamma-ray spectrum measured by the EGRET experiment (Hunter et al. 1997) are interpreted within a scenario in which cosmic rays (CRs) are injected by three different kind of sources, (i) supernovae (SN) which explode into the interstellar medium (ISM), (ii) Red Supergiants (RSG), and (iii) Wolf-Rayet stars (WR), where the two latter explode into their pre-SN winds (Biermann...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1997
ISSN: 0004-637X,1538-4357
DOI: 10.1086/304736