Dynamics of solar filaments. II - Mass motions in an active region filament from H-alpha center to limb observations

Details Dynamics of solar filaments. II - Mass motions in an active region filament from H-alpha center to limb observations Dynamics of solar filaments. II - Mass motions in an active region filament from H-alpha center to limb observations

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...119..197m&link_type=abstract

Astronomy and Astrophysics, vol. 119, no. 2, Mar. 1983, p. 197-206.

Astronomy and Astrophysics

Astrophysics

40

H Alpha Line, Plasma Dynamics, Radial Velocity, Solar Atmosphere, Solar Corona, Solar Limb, Solar Prominences, Chromosphere, Doppler Effect, Mass Flow, Radiant Flux Density, Spectroheliographs, Statistical Analysis, Stellar Models, Velocity Distribution

Scientific paper

The authors present the observations of a solar filament obtained at Meudon with the Hα spectroheliograph over a period of 10 d. They show a morphologically stable feature. The authors perform a statistical analysis of the radial velocity field. Assuming long-lived (several days) stationary motions, they compute a 3-dimensional velocity field from center to limb observations of the radial component of velocity in the stable feature. Different pictures of stationary material circulations are suggested and compared with theoretical models of filaments. On the contrary, in the case of short-lived (a few 10 min) flows of material, the authors interpret their data in terms of velocity loops in the magnetic structure supporting the filament, and they compare the results with the MHD model proposed by Ribes and Unno (1980). Possible improvements to this model are pointed out in the conclusion.

Affiliated with

Also associated with

No associations

Rating

Dynamics of solar filaments. II - Mass motions in an active region filament from H-alpha center to limb observations 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 Dynamics of solar filaments. II - Mass motions in an active region filament from H-alpha center to limb observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamics of solar filaments. II - Mass motions in an active region filament from H-alpha center to limb observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1464793