Alfven waves in the solar wind in association with solar energetic particles - Sunspot umbral origin?

Details Alfven waves in the solar wind in association with solar energetic particles - Sunspot umbral origin? Alfven waves in the solar wind in association with solar energetic particles - Sunspot umbral origin?

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...280..346m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 280, May 1, 1984, p. 346-381.

Astronomy and Astrophysics

Astrophysics

6

Magnetohydrodynamic Waves, Solar Wind, Sunspots, Correlation Coefficients, International Sun Earth Explorer 3, Particle Acceleration, Shock Waves, Umbras

Scientific paper

The paper reports on a search for Alfven waves in the solar wind during solar particle events using ISEE 3 data. During the period June 6-8, 1979, signatures of outgoing Alfven waves are found which could have been released from the sun simultaneously with the initial release of energetic particles. The waves have durations of 200-900 s. An isolated Alfven wave is also seen when the first particles (with E greater than or approximately equal to 57 MeV) are detected by ISEE 3; the width of this wave is about 950 s. A series of five small-amplitude 'spikes' in the magnetic field are also seen, preceding the arrival of the first particles by a few hours. The spikes are separated by intervals of 854 + or - 20 s. It is suggested that these periodicities may be determined by the propagation characteristics of Alfven waves in the solar atmosphere. The features which have been detected appear to be consistent with Alfven waves released from the umbra of a sunspot during a flare.

Affiliated with

Also associated with

No associations

Rating

Alfven waves in the solar wind in association with solar energetic particles - Sunspot umbral origin? 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 Alfven waves in the solar wind in association with solar energetic particles - Sunspot umbral origin?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alfven waves in the solar wind in association with solar energetic particles - Sunspot umbral origin? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1368022