Photospheric layers of a flare and a plage. IV. Semiempirical models

Details Photospheric layers of a flare and a plage. IV. Semiempirical models Photospheric layers of a flare and a plage. IV. Semiempirical models

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000kfnt...16..387b&link_type=abstract

Kinematika i Fizika Nebesnykh Tel, vol. 16, no. 5, p. 387-399

Physics

1

Scientific paper

Semiempirical inhomogeneous photospheric models of a plage and a small flare were constructed by fitting the calculated and observed profiles of 11 Fraunhofer lines. In the plage the upper layers of magnetic fluxtubes were more heated, and there was a region of decreased density in the middle photosphere. During the main phase of the flare the temperature in the magnetic fluxtubes was also higher than in their surroundings. Some photospheric layers were heated by 1500 K. The flare disturbance propagated from the upper to the lower layers and had a wave character. The variations of the thermodynamical parameters may be caused by the passage of a chromospheric condensation.

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