Titlebook: Cosmic Gamma Rays, Neutrinos, and Related Astrophysics; Maurice M. Shapiro,John P. Wefel Book 1989 Kluwer Academic Publishers 1989 Superno

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Conservation and Efficiency Issues,Gamma-ray Astronomy investigates the electromagnetic radiation coming from Outer Space in the energy range above~100 KeV, bordering and mixing on the low energy side with the upper end of X-Ray Astronomy; no limit is indicated on the high energy side if not that imposed by the vanishing intensity of the incoming flux (Fig.1).

確保

Toshihiro Fujito,Kei Kimura,Yuki MizunoIt is shown that experimentally measured ratio of atmospheric electron-neutrino flux to that of muon-neutrinos and expected theoretical ratio do not contradict each other if muon polarization is taken into account in calculations.

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Conservation and Efficiency Issues,We discuss the question whether a laboratory placed on the Moon has some advantages for astrophysical neutrino studies compared to such a laboratory on the Earth.

Gingivitis

Junhee Cho,Sewon Park,Martin ZieglerA short historical outline of VHE and UHE gamma-ray astronomy is given, including personal reminiscences of the author. Special attention is paid to the development of experimental techniques and methods of analysis. The main results obtained in the field to date are critically reviewed.

季雨

Ligy Philip,C. Ramprasad,D. KrithikaWe compare the observations of Cygnus X-3 performed in 1986 by different arrays in the 100 TeV energy range. Three experiments (Baksan, Plateau Rosà, Grex in Leeds) show similar excesses at 2 ÷ 3σ. A search for pulsar periodicity in the Baksan Hercules X-l data is presented ; no positive evidence is found.

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DAMP

Other Macroeconomic Estimations,The Crab pulsar (PSR0531+21) has been observed with the Whipple Observatory 10 m Reflector in imaging mode for ~102h. A suggestion of a broad light curve has been found, but with a low statistical significance. An upper limit (95% confidence level) for the pulsed flux (energy > 0.7TeV) is 4.5x10. photons-cm.-s..

Hormones

健壯

A Comment on ,,/,, Ratio in Atmospheric Neutrino FluxesIt is shown that experimentally measured ratio of atmospheric electron-neutrino flux to that of muon-neutrinos and expected theoretical ratio do not contradict each other if muon polarization is taken into account in calculations.

Diluge

Fluxes of Muons and Neutrinos Generated by Primary Radiation on the MoonWe discuss the question whether a laboratory placed on the Moon has some advantages for astrophysical neutrino studies compared to such a laboratory on the Earth.