Physical parameter fields of the post-flare loop system on February 18, 1984

Details Physical parameter fields of the post-flare loop system on February 18, 1984 Physical parameter fields of the post-flare loop system on February 18, 1984

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...269..496l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 269, no. 1-2, p. 496-502.

Physics

10

Coronal Loops, H Alpha Line, Solar Flares, Solar Limb, Solar Physics, Solar Spectra

Scientific paper

The profiles of H-alpha spectra lines of the loop prominence system on February 18, 1984 at the eastern solar limb are calculated in this paper. The following four 2D fields of physical parameters are obtained: (1) the velocity along the line-of-sight V(parallel); (2) the column number density of the hydrogen atoms at the second level N0,2; (3) the excitation temperature T(exc); and (4) the microturbulence velocity (Vt). The computed results show that the velocities V(parallel) at both the top and the low part of a single loop are smaller than those at the middle. The column number densities at the southern limb are the largest in the loop system. The excitation temperature at the southern limb is higher than elsewhere. The southern position is perhaps the site of the original flare core. In this loop system, V(parallel) goes up to 60 km/s, N0,2 varies from 0.15 to 1.0 x 10 exp 13/sq cm, T(exc): 6000-20,000 K, electron density n(e): 10 exp 11 - 10 exp 12/cu cm, electron pressure P(e): 0.10-10 dyn/sq cm.

Affiliated with

Also associated with

No associations

Rating

Physical parameter fields of the post-flare loop system on February 18, 1984 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 Physical parameter fields of the post-flare loop system on February 18, 1984, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical parameter fields of the post-flare loop system on February 18, 1984 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1440394