Manifestations of CME-associated dimmings at four EUV wavelengths of SOHO/EIT

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4

Solar Corona, Coronal Mass Ejections (Cmes), Dimming

Scientific paper

We describe two halo coronal mass ejection (CME) events as examples of our analysis of dimmings simultaneously in three coronal and one transition region lines by forming of rerotated SOHO/EIT difference images with 6- or 12-hour intervals. It is shown that usually the dimmings are most pronounced and have similar large-scale structures in the moderate-temperature coronal lines 171 and 195 Å. In the high-temperature line 284 Å, analogous dimmings are visible not always, and sometimes the deepest dimming fragments are visible only. On-disk CME events display also clear, but relatively small-area dimmings in the transition region line 304 Å particularly in regions joining to a main eruption source, although sometimes remote dimming patches are present as well. These results suggest that not only opening of magnetic field lines, resulting in density and emission depletion, but also temperature variations may be responsible for observed dimmings, and that these effects may also extend into cooler plasma of the transition region.

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

Manifestations of CME-associated dimmings at four EUV wavelengths of SOHO/EIT 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 Manifestations of CME-associated dimmings at four EUV wavelengths of SOHO/EIT, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manifestations of CME-associated dimmings at four EUV wavelengths of SOHO/EIT will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1152877

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