Coronal Mass Ejections, Magnetic Fields, and the Green Corona in Cycle 23

Details Coronal Mass Ejections, Magnetic Fields, and the Green Corona in Cycle 23 Coronal Mass Ejections, Magnetic Fields, and the Green Corona in Cycle 23

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008soph..248..167m&link_type=abstract

Solar Physics, Volume 248, Issue 1, pp.167-176

Physics

2

Sun: Coronal Mass Ejections, Sun: Large-Scale Magnetic Fields

Scientific paper

We study a time latitudinal distribution of CMEs observed by the SOHO spacecraft, their projected speeds and associated magnetic fields, as well as the north south (N S) asymmetry of solar surface magnetic fields, and the coronal green line intensities. We have found that (a) there exists an intricate relation between the average projected velocity of CMEs and the mean value of large-scale magnetic fields; (b) there exists a pronounced N S asymmetry in both the distribution and the number of CMEs; (c) this asymmetry is in favor of the northern hemisphere at the beginning of the cycle, and of the southern hemisphere from 2001 onward, being, in fact, (d) closely related with the N S asymmetry in the distribution of large-scale magnetic fields and the coronal green line intensities.

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