Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974izssr..38.1849g&link_type=abstract
(Vsesoiuznaia Konferentsiia po Fizike Kosmicheskikh Luchei, Kharkov, Ukrainian SSR, Sept. 25-28, 1973.) Akademiia Nauk SSSR, Izv
Astronomy and Astrophysics
Astronomy
Particle Production, Proton Flux Density, Solar Cosmic Rays, Solar Protons, Spaceborne Astronomy, Anisotropy, Data Reduction, Mars 2 Spacecraft, Mean Free Path, Satellite Observation, Solar Activity Effects, Solar Wind, Venera Satellites
Scientific paper
Low-energy proton data obtained in anisotropy measurements carried out on board several spacecraft of the Venera series are analyzed, assuming a temporal and spatial nature of the variations. It is shown that the transport mean free path is a highly variable quantity; at the onset of intensity increases, the transport mean free path decreases to below 0.1 AU, reaching peak values of more than 1.0 AU at maximum intensity. Its mean value is a function of solar activity (decreasing with increasing activity). According to the measurements on board Venera-7 and Mars-2, the transport mean free path of 5-MeV protons is less by factors of 2 to 3 than that of 1-MeV protons.
Gorchakov E. V.
Morozova T. I.
Timofeev G. A.
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