Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001apj...550l.105k&link_type=abstract
The Astrophysical Journal, Volume 550, Issue 1, pp. L105-L108.
Astronomy and Astrophysics
Astronomy
88
Sun: Activity, Sun: Flares, Sun: Magnetic Fields, Sun: Particle Emission, Sun: Photosphere, Sun: X-Rays, Gamma Rays, Sun: Sunspots
Scientific paper
High-resolution observations of a large solar flare on 2000 July 14 (``Bastille Day Flare'') from the Michelson Doppler Imager instrument on the SOHO spacecraft reveal rapid variations of the magnetic field in the lower solar atmosphere during the flare. Some of these variations were irreversible, occurred in the vicinity of magnetic neutral lines, and likely were related to magnetic energy release in the flare. A surprising result is that these variations happened very rapidly on the scale of 10-15 minutes in a large area of ~50 Mm2 at the beginning of the flare. Other, more localized and impulsive magnetic field variations somewhat similar to ``magnetic transients'' observed by Zirin and coworkers were accompanied by impulses in continuum intensity and Doppler velocity. These impulses have dynamic characteristics similar to Ellerman's ``bombs'' and Severny's ``mustaches'' and were probably caused by high-energy particles bombarding the solar surface.
Kosovichev Aleksandr G.
Zharkova Valentin
No associations
LandOfFree
Magnetic Energy Release and Transients in the Solar Flare of 2000 July 14 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 Magnetic Energy Release and Transients in the Solar Flare of 2000 July 14, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic Energy Release and Transients in the Solar Flare of 2000 July 14 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1005965