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Astrophysics and Space Science, 1994
A general review of cosmic energetic gamma particles is given. A discussion on the subject starting with the discovery of the PeV gamma rays by Sammorski and Stamm, passing to the super-nova SN1987A explosion when several groups waited for high energy gamma particles but none has come so far up to the measurements of TeV gamma incoming from the Crab ...
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A general review of cosmic energetic gamma particles is given. A discussion on the subject starting with the discovery of the PeV gamma rays by Sammorski and Stamm, passing to the super-nova SN1987A explosion when several groups waited for high energy gamma particles but none has come so far up to the measurements of TeV gamma incoming from the Crab ...
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Space Science Reviews, 1977
γ-ray astronomy is the study of the most energetic photons originating in our Galaxy and beyond, and therefore, provides the most direct means of studying the largest transfers of energy occurring in astrophysical processes. The first certain detection of celestialγ-rays came from a satellite experiment flown on OSO-III (Kraushaaret al., 1972); more ...
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γ-ray astronomy is the study of the most energetic photons originating in our Galaxy and beyond, and therefore, provides the most direct means of studying the largest transfers of energy occurring in astrophysical processes. The first certain detection of celestialγ-rays came from a satellite experiment flown on OSO-III (Kraushaaret al., 1972); more ...
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Gamma rays and neutrinos as complementary probes in astrophysics
Space Science Reviews, 1983Electrons are more susceptible to energy losses in magnetic fields and photon fields than protons. Hence, photons at various wavelengths, including gamma rays, bring more readily information on high-energy electrons than on protons. Neutrinos provide a unique tracer for protons.
M. M. Shapiro, R. Silberberg
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Gamma-Ray Astrophysics: A New Look at the Universe
Science, 1978Progress in γ-ray astronomy has been very encouraging in recent years. These observations provide the most direct means of studying the largest transfer of energy occurring in astrophysical processes: the dynamic effects of the energetic charged cosmic-ray particles, element synthesis, and particle acceleration. Gamma-ray astronomical observations also
J, Trombka +3 more
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1975
Gamma ray production processes are reviewed, including Compton scattering, synchrotron radiation, bremsstrahlung interactions, meson decay, nucleon-antinucleon annihilations, and pion production. Gamma ray absorption mechanisms through interactions with radiation and with matter are discussed, along with redshifts and gamma ray fluxes.
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Gamma ray production processes are reviewed, including Compton scattering, synchrotron radiation, bremsstrahlung interactions, meson decay, nucleon-antinucleon annihilations, and pion production. Gamma ray absorption mechanisms through interactions with radiation and with matter are discussed, along with redshifts and gamma ray fluxes.
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Neutrino and Gamma-Ray Astrophysics
1993Neutrinos and gamma rays are complementary probes of high-energy reactions in astrophysics. The complementarity is due to the respective natures of their interactions: weak vs. electromagnetic. Solar neutrinos probe the nucleosynthesis reactions at the solar core, and possible elementary interactions like neutrino oscillations.
R. Silberberg +2 more
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AIP Conference Proceedings, 2000
The Compton Observatory instruments have measured γ-ray lines from several individual sources and from the diffuse interstellar medium. At this late phase of CGRO’s mission, we review the astrophysical achievements by these observations of solar flare spectra, supernova lines from Co and 44Ti isotopes, 511 keV annihilation radiation from Galactic plane
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The Compton Observatory instruments have measured γ-ray lines from several individual sources and from the diffuse interstellar medium. At this late phase of CGRO’s mission, we review the astrophysical achievements by these observations of solar flare spectra, supernova lines from Co and 44Ti isotopes, 511 keV annihilation radiation from Galactic plane
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OUTLOOKS ON GAMMA RAY ASTROPHYSICS
2006Gamma Ray Astrophysics, extending from MeV to PeV, covers a wide range of phenomena in the domain of both particle physics and astrophysics, providing one of the most active field of modern astroparticle physics. Moreover, the study of gamma rays from the universe can unveil some profound implications for the foundation of physics itself (from Quantum ...
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Nuclear Astrophysics with Gamma-Ray Line Astronomy
EAS Publications Series, 2007Nuclear reactions occur in cosmic environments in the cores of stars and in stellar explosions. Nuclear energy production is a key agent in these objects; the production of new isotopes drives the chemical evolution of gas throughout the universe and of the objects which form from this gas over cosmic times.
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Gamma-ray astrophysics: parsecs to megaparsecs
Astrophysics and Space Science, 1995A rapidly spinning, slowly accreting magnetic white dwarf (or X-ray pulsar) in hibernation is expected to result in rapid spindown as a result of the stretching and reconnection of magnetic field lines, leading to particle acceleration at the magnetospheric radiusoutside the corotation radius, and the propeller type ejection of magnetized synchrotron ...
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