Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007a%26a...465..603d&link_type=abstract
Astronomy and Astrophysics, Volume 465, Issue 2, April II 2007, pp.603-612
Astronomy and Astrophysics
Astrophysics
26
Sun: Coronal Mass Ejections (Cmes), Sun: Magnetic Fields, Sun: Activity, Sun: Flares, Sun: Chromosphere, Sun: Corona
Scientific paper
Context: EIT and Moreton waves came into focus in 1997, when a propagating disturbance on a large area of the solar disc was discovered. The process generating the EIT and Moreton waves has been frequently discussed. Aims: On May 2, 1998, a halo CME was observed related to an EIT wave, a Moreton wave, a X1 flare, radio emission sources, and dimmings. We studied this event to find the relation between all these structures. Methods: We use and co-align multi-wavelength observations and the online potential field source surface (pfss) package. Results: The observed EIT and Moreton waves present some brightenings that remain at the same location. We relate the connectivity of the coronal potential magnetic field to the stationary brightenings. We find that the areas where the magnetic field lines have drastic jumps of connectivity are cospatial to the stationary brightenings of the waves. Conclusions: .We conclude that the EIT and Moreton waves may be due to Joule heating resulting from the generation of electric currents in the neighboring area of the drastic jumps of magnetic connectivity, while the magnetic field lines are opening during a CME.
Aulanier Guillaume
Delannée Cecile
Hochedez Jean-François
No associations
LandOfFree
Stationary parts of an EIT and Moreton wave: a topological model 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 Stationary parts of an EIT and Moreton wave: a topological model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stationary parts of an EIT and Moreton wave: a topological model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1679801