163 research outputs found

    Primary cosmic rays on the lunar surface

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    Results are reported for determination of the galactic cosmic ray flux during various time intervals in the 1965-1972 period, on the basis of data from the instruments of a spacecraft that made a soft landing on the lunar surface, and from the radioactivity of samples returned by the spacecraft. During minimum solar activity (the second half of 1965 and the beginning of 1966) I sub 0 (E greater than or equal to 30 percent MeV/nucleon) was determined to be 0.43 (plus or minus 10 percent). These values, within the error limits of the determinations, agree with the corresponding values of galactic cosmic ray intensities determined by stratospheric measurements. The mean flux of galactic cosmic rays over the past million years is equal to I (E greater or equal to 100 MeV/nucleon) + 0.28 (plus or minus 20 percent). This value agrees with the mean flux of modulated cosmic rays during the period of the nineteenth solar cycle. The mean flux of solar protons between 1965 and 1972 was 2.46

    Behavior of radiation belts anomalous cosmic radionoise absorption in the aurora zone during the magnetic storms of 12-14 and 20-21 February 1964

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    Characteristics of radiation belt and ionospheric absorption of cosmic radio noise in auroral zone during geomagnetic storm

    Observation of a diffusion wave of relativistic electrons in the outer radiation belt

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    Cosmos satellite registration of relativistic electron diffusion wave in outer radiation bel
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