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Contemporary Physics, 1992
Abstract Gamma-rays are located in the hard electromagnetic wave band. The range of measured energies is restricted to the interval between about 105 eV and 1016 eV (the latter is the highest energy of detected particles which are supposed to be gamma-ray photons). Gamma-ray astronomy is relatively young—approximately 25 years old.
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Abstract Gamma-rays are located in the hard electromagnetic wave band. The range of measured energies is restricted to the interval between about 105 eV and 1016 eV (the latter is the highest energy of detected particles which are supposed to be gamma-ray photons). Gamma-ray astronomy is relatively young—approximately 25 years old.
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Canadian Journal of Physics, 1968
A brief review is presented of the predicted intensities of gamma radiation from celestial objects. This is followed by a discussion of the use of a balloon-borne spark chamber to measure these intensities and to study the background gamma-ray intensity at 2.8 atmospheric pressure over Texas.
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A brief review is presented of the predicted intensities of gamma radiation from celestial objects. This is followed by a discussion of the use of a balloon-borne spark chamber to measure these intensities and to study the background gamma-ray intensity at 2.8 atmospheric pressure over Texas.
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European Journal of Physics, 1988
The study of celestial gamma -rays represents the opening of one of the last observational windows in high-energy astrophysics. Gamma rays provide a unique method for observing the energetic processes which exist within many of the most unusual celestial objects.
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The study of celestial gamma -rays represents the opening of one of the last observational windows in high-energy astrophysics. Gamma rays provide a unique method for observing the energetic processes which exist within many of the most unusual celestial objects.
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IEEE Transactions on Nuclear Science, 1975
Recent observations have marked the transition of gamma ray astronomy from a discovery phase to an exploratory one. This has been the result of the development of a number of very sophisticated sensitive telescopes and the opportunity to place them on space platforms.
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Recent observations have marked the transition of gamma ray astronomy from a discovery phase to an exploratory one. This has been the result of the development of a number of very sophisticated sensitive telescopes and the opportunity to place them on space platforms.
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Il Nuovo Cimento, 1958
Photons in the visible range form the basis of astronomy. They move in straight lines, which preserves source information, but they arise only very indirectly from nuclear or high-energy processes. Cosmic-ray particles, on the other hand, arise directly from high-energy processes in astronomical objects of various classes, but carry no information ...
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Photons in the visible range form the basis of astronomy. They move in straight lines, which preserves source information, but they arise only very indirectly from nuclear or high-energy processes. Cosmic-ray particles, on the other hand, arise directly from high-energy processes in astronomical objects of various classes, but carry no information ...
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AIP Conference Proceedings, 2000
This paper summarizes recent results in X-ray and γ-ray astronomy including measurements of galactic and extragalactic sources from 0.1 keV to 20 GeV from space, measurements of γ-rays at energies above 70 GeV from the ground as well as theoretical models for the emission of γ-rays and X-rays in galactic and extragalactic sources.
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This paper summarizes recent results in X-ray and γ-ray astronomy including measurements of galactic and extragalactic sources from 0.1 keV to 20 GeV from space, measurements of γ-rays at energies above 70 GeV from the ground as well as theoretical models for the emission of γ-rays and X-rays in galactic and extragalactic sources.
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1969
Nowadays, the studies of celestial gamma rays are of great interest for several areas of galactic astronomy. On a large scale, an upper limit of about a factor 3 is placed on the possible increase in density of the interstellar gas in the ring at 5 Kpc from the galactic center with respect to the solar neighbourhood.
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Nowadays, the studies of celestial gamma rays are of great interest for several areas of galactic astronomy. On a large scale, an upper limit of about a factor 3 is placed on the possible increase in density of the interstellar gas in the ring at 5 Kpc from the galactic center with respect to the solar neighbourhood.
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High-energy Gamma-ray Astronomy
Nature, 1970Gamma-ray astronomy above 10 MeV is difficult from the experimental point of view, but promising data are beginning to appear, as this survey progress report shows.
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2016
The domain of gamma-rays is very extended and several observational techniques are needed to cover the range from the MeV region to the TeV region. The low energy side (up to tens GeV) is the domain of space based observatories. The very low energy gamma rays, up to a few MeV, can be detected with scintillator systems.
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The domain of gamma-rays is very extended and several observational techniques are needed to cover the range from the MeV region to the TeV region. The low energy side (up to tens GeV) is the domain of space based observatories. The very low energy gamma rays, up to a few MeV, can be detected with scintillator systems.
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Gammapy: A Python package for gamma-ray astronomy
Astronomy and Astrophysics, 2023Axel Donath, R Terrier, Quentin Remy
exaly