INTERNATIONAL JOURNAL OF GEOMAGNETISM AND AERONOMY VOL. 5, GI2004, doi:10.1029/2004GI000070, 2004

Main phases of the solar cycle in the galactic cosmic ray intensity

M. B. Krainev
Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia

Abstract

[1] The separation of the solar cycle in the modulation of the galactic cosmic ray intensity into the four main phases (the minimum, ascending, maximum, and descending) is considered. We substantiate advantages of such classification, choose as its initial point one of the known classifications, and discuss the special features of the main phases of the solar cycle in the heliospheric and cosmic ray characteristics. The initial assumption on the physical meaning of the sought for classification is proposed. The role of the very local interstellar medium in forming the solar cycle in the heliosphere is briefly discussed.

Received 25 May 2004; revised 31 August 2004; accepted 14 September 2004; published 30 October 2004.

Keywords: Galactic cosmic ray; Very local interstellar medium; Phases of cosmic ray modulation.

Index Terms: 7536 Solar Physics, Astrophysics, and Astronomy: Solar activity cycle; 2104 Interplanetary Physics: Cosmic rays; 2134 Interplanetary Physics: Interplanetary magnetic fields.

Citation: Krainev, M. B. (2004), Main phases of the solar cycle in the galactic cosmic ray intensity, Int. J. Geomagn. Aeron., 5, GI2004, doi:10.1029/2004GI000070.