An investigation of the large-scale magnetic field variations in the corona prior to and after CME eruptions

Details An investigation of the large-scale magnetic field variations in the corona prior to and after CME eruptions An investigation of the large-scale magnetic field variations in the corona prior to and after CME eruptions

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998soph..181..133f&link_type=abstract

Solar Physics, v. 181, Issue 1, p. 133-158 (1998).

Physics

5

Scientific paper

The magnetic field changes in the corona at the site of coronal mass ejections (CMEs) have been investigated using the potential field-source surface model. It is shown that a CME is accompanied by the opening of closed field lines that formed the streamer's helmet base prior to the onset of a coronal disturbance. Two to three days after the appearance of the CME, the field configuration at the location of the coronal ejection reverts approximately to the state pre-existing before the generation of the CME. The appearance of small transient open magnetic tubes has been found after eruption of the coronal mass. These magnetic tubes seem to be the analogs for transient coronal holes. Taking into account the results of calculations of the field changes in the neighbourhood of the CME occurrence site, we have suggested a possible mechanism governing the spatio-temporal correlation between some flares and CMEs. Also, a possible mechanism has been proposed for field reconfiguration in the corona, leading to loss of the equilibrium of the magnetic configuration and to the subsequent generation of a CME in the region of coronal streamer chains separating coronal holes with same-polarity magnetic field.

Affiliated with

Also associated with

No associations

Rating

An investigation of the large-scale magnetic field variations in the corona prior to and after CME eruptions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with An investigation of the large-scale magnetic field variations in the corona prior to and after CME eruptions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An investigation of the large-scale magnetic field variations in the corona prior to and after CME eruptions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1174893