Physics
Scientific paper
Jun 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991kfnt....7...52b&link_type=abstract
Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 7, May-June 1991, p. 52-58. In Russian.
Physics
6
Balmer Series, H Alpha Line, H Gamma Line, Solar Flares, Solar Magnetic Field, Solar Spectra, Emission Spectra, Magnetic Measurement, Photosphere, Plasma-Electromagnetic Interaction, Thermodynamic Properties
Scientific paper
Spectral observations with a polarization analyzer of a solar flare of 1B importance are studied using a non-LTE program. An empirical flare model is derived utilizing the profiles of Fe I lines 513.15 and 543.45 nm, Fe II lines 492.39 and 501.84 nm, and H-alpha and H-gamma Balmer lines. It is found that, for depths greater than 0.04, the temperature and density are the same as for the undisturbed regions, and the magnetic field is very close to zero. For photospheric layers in the range between 0.0001 and 0.04 the temperature is higher and reaches a maximum value of 6100 K at a depth of about 0.004. The value of the longitudinal magnetic field for these layers is 80-90 mT. In the formation region of Balmer lines the magnetic field is 120 mT.
Baranovskii E. A.
Lozitskaia N. I.
Lozitskii V. G.
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