Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993acaps..13..245d&link_type=abstract
Acta Astrophys. Sin., Vol. 13, No. 3, p. 245 - 252
Astronomy and Astrophysics
Astrophysics
Scientific paper
The asymmetry and Doppler shift of metal lines of the 3B flare on September 19, 1979 are investigated. The results show that: (1) red asymmetries dominate in strong metal lines, but blue asymmetries also exist in some weak lines; (2) the maximum of the line asymmetry always precedes the maximum of the line intensity; (3) the blue asymmetry occurs generally in the early phase and can turn to a red one in the later phase; and (4) the line center has no obvious shift, regardless of the line asymmetry. It is proposed that the mass motions around the temperature minimum region caused by the impulsive heating or the propagation of the chromospheric condensation can explain these observational results. The study on metal lines can help understanding the dynamic process in the lower atmosphere of solar flares.
Ding Mingde
Fang Cheng
Okamoto Tohru
No associations
LandOfFree
Spectral analysis of the 3B flare on September 19, 1979: asymmetry and Doppler shift of the metal lines. 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 Spectral analysis of the 3B flare on September 19, 1979: asymmetry and Doppler shift of the metal lines., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectral analysis of the 3B flare on September 19, 1979: asymmetry and Doppler shift of the metal lines. will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1066800