The influence of the height velocity gradient on the profiles of Fraunhofer lines

Details The influence of the height velocity gradient on the profiles of Fraunhofer lines The influence of the height velocity gradient on the profiles of Fraunhofer lines

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001kfnt...17..357c&link_type=abstract

Kinematika i Fizika Nebesnykh Tel, vol. 17, no. 4, p. 357-364

Physics

Scientific paper

The influence of the height velocity gradient in the photosphere on the profiles of Fraunhofer lines was analyzed. It was found that only the data about line shifts gives a possibility to make a conclusion on the direction and magnitude of the line-of-sight velocities in the layer where the cores of spectral lines are formed. The interpretation of the asymmetry of Fraunhofer lines in flares requires a more careful approach because red (blue) asymmetry may appear with in the descending and the ascending flows of matter.

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