Evolution of vector magnetic fields and vertical currents and their relationship with solar flares in AR 5747

Details Evolution of vector magnetic fields and vertical currents and their relationship with solar flares in AR 5747 Evolution of vector magnetic fields and vertical currents and their relationship with solar flares in AR 5747

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994soph..155...99w&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 155, no.1, p. 99-112

Physics

66

Current Density, Magnetic Signatures, Solar Flares, Solar Magnetic Field, Vector Currents, Crossed Fields, Data Reduction, Magnetic Flux, Polarity

Scientific paper

NOAA was a flare-productive active region during its transit across the solar disk in October 1989. After the resolution of the 180 deg ambiguity of the transverse field synthetically, and transformation of vector magnetograms from the image plane to the heliographic frame, we have determined the distribution of the photospheric vertical electric current density in the active region. By analyzing the evolution of vector magnetograms and vertical current over a 6-day period (October 17-22) in the active region, we get the following results: (1) Two magnetic fluxes of opposite polarities emerged synchronously with their separating motion, one of which converged with an old magnetic structure and caused a number of flares. (2) There appeared a new current system, with the emergence of the fluxes. (3) The initial H beta bright kernels occurred in the vicinity of the neutral line of vertical current Jz = 0) with a steep gradient, but not just on the sites of vertical current peaks. (4) The flares were probably triggered by the interaction between the new emerging electric current system and old current system.

Affiliated with

Also associated with

No associations

Rating

Evolution of vector magnetic fields and vertical currents and their relationship with solar flares in AR 5747 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 Evolution of vector magnetic fields and vertical currents and their relationship with solar flares in AR 5747, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolution of vector magnetic fields and vertical currents and their relationship with solar flares in AR 5747 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-950326