Generation and Merging of Magnetic Islands Associated With Homologous Flares

Other

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

The repetitive process of generation of magnetic flux ropes and their merging is studied in a magnetic arcade system by 2-1/2D numerical MHD simulations. Increase of magnetic shear enables field lines in a magnetic arcade to reconnect and form a magnetic island. In the shear-relaxed lowlying arcade, continuous footpoint shearing can create another island. The two islands merge very quickly to form one bigger island. This process is found to repeat in a time interval on the order of a day. This may explain how homologous flares repetitively take place in the same active region. Depending on the mode of shear-increasing motion, the energy flux through the photosphere is varied when magnetic reconnection is allowed. We will show the Poynting flux distributions in several cases and discuss how the energy exchange through the photosphere can affect the time interval of flaring events. We will also demonstrate that a shear-decreasing motion can cause a reverse magnetic reconnection and destroy the helical structure of the magnetic island.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Generation and Merging of Magnetic Islands Associated With Homologous Flares 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 Generation and Merging of Magnetic Islands Associated With Homologous Flares, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Generation and Merging of Magnetic Islands Associated With Homologous Flares will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1120186

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.