Structure and cyclic variations of open magnetic fields in the sun

VN Obridko, BD Shelting - Solar Physics, 1999 - Springer
The structure and variations of open field regions (OFRs) are analyzed against the solar
cycle for the time interval of 1970–1996. The cycle of the large-scale magnetic field (LSMF)
begins in the vicinity of maximum Wolf numbers, ie during the polar field reversal. At the
beginning of the LSMF cycle, the polar and mid-latitude magnetic field systems are
connected by a narrow bridge, but later they evolve independently. The polar field at the
latitudes above 60° has a completely open configuration and fills the whole area of the polar …

Structure and Cyclic Variations of Open Magnetic Fields in the Sun

VN Obridko, BD Shelting - … Phenomena at the Sun, in the …, 1997 - adsabs.harvard.edu
… The whole magnetic field of the heliosphere originates in the open field regions on the
Sun (OFR), that occupy … Open field regions are seen to rotate much more rigidly, …
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