CA II K line diagnostics of the dynamics of the solar flare atmosphere

Details CA II K line diagnostics of the dynamics of the solar flare atmosphere CA II K line diagnostics of the dynamics of the solar flare atmosphere

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasj...44...63f&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264), vol. 44, no. 1, p. 63-72.

Astronomy and Astrophysics

Astronomy

17

Calcium, Plasma Diagnostics, Solar Atmosphere, Solar Flares, Solar Spectra, Asymmetry, Chromosphere, H Alpha Line, Nonequilibrium Thermodynamics

Scientific paper

Observations of the Ca II K line profiles for 12 solar flares have been analyzed and some characteristics of the red asymmetry of the Ca II K line are given. Based on Non-LTE calculations, the influence of velocity fields in the lower atmosphere of flares on the profiles of the H-alpha and Ca II K lines has been explored. The result indicates that a downward motion of plasma above the temperature minimum region (TMR) as well as a contracting motion of the plasma toward TMR can well explain the red asymmetry observed at the K1 positions. The typical velocity is 10-30 km/s.

Affiliated with

Also associated with

No associations

Rating

CA II K line diagnostics of the dynamics of the solar flare atmosphere 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 CA II K line diagnostics of the dynamics of the solar flare atmosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CA II K line diagnostics of the dynamics of the solar flare atmosphere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1051152