Large-scale magnetic fields of Sun-heliosphere magnetic system

Abstract

Some results of investigations of solar and interplanetary magnetic fields are presented. The time series of the solar background magnetic field (SBMF) of ±20 degree for 1904–2000, solar mean magnetic field (SMMF) for 1975–2003, and interplanetary magnetic field (IMF) for 1947–2001 were used. A change of the Sun’s rotation regime in the middle of the 20th century is confirmed. The rotation of the sector structures of SBMF, SMMF, and IMF had not identical character during common interval of the observations.