H alpha surges and associated soft X-ray loops

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

41

Coronal Loops, H Alpha Line, Solar Activity, Solar Physics, Solar X-Rays, Sun, Surges, Jets, Magnetic Field Reconnection, Solar Limb, Solar Magnetic Field

Scientific paper

A recurrent H alpha surge was observed on 7 Oct., 1991 on the western solar limb with the Meudon MSDP spectrograph. The GOES satellite recorded X-ray subflares coincident with all three events. During two of the surges high-resolution Yohkoh Soft X-ray Telescope (SXT) images have been taken. Low X-ray loops overlying the active region where the surges occurred were continuously restructuring. A flare loop appeared at the onset of each surge event and somewhat separated from the footpoint of the surge. The loops are interpreted as causally related to the surges. It is suggested that surges are due to magnetic reconnection between a twisted cool loop and open field lines. Cold plasma bubbles or jets squeezed among untwisting magnetic field lines could correspond to the surge material. No detection was made of either X-ray emission along the path of the surges or X-ray jets, possibly because of the finite detection threshold of the Yohkoh SXT.

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

H alpha surges and associated soft X-ray loops 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 H alpha surges and associated soft X-ray loops, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and H alpha surges and associated soft X-ray loops will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1824698

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