The spectral diagnostics for a hydrodynamical model of the gradual phase of solar flares

Details The spectral diagnostics for a hydrodynamical model of the gradual phase of solar flares The spectral diagnostics for a hydrodynamical model of the gradual phase of solar flares

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997acasn..38..273g&link_type=abstract

Acta Astronomica Sinica, vol. 38, p. 273

Astronomy and Astrophysics

Astronomy

2

Solar Flares, Hydrodynamics, Spectrum Analysis, Stellar Models, High Temperature, Low Temperature

Scientific paper

Based on a hydrodynamical model of the gradual phase of solar flares, we have calculated both high temperature spectra (CaXIX) as well as low temperature ones (H-alpha and CaII K). The results show that the calculated spectra and their characteristics are consistent with common observations. This indicates that the hydrodynamical model of the gradual phase proposed by Gan and Fang (1990) can rather well reproduce the spectral observations. Meanwhile, it is shown that the extra heating is not necessary for quite a number of flares during their gradual phase.

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