Structure of the velocity field in the solar photosphere near H-alpha filaments

Details Structure of the velocity field in the solar photosphere near H-alpha filaments Structure of the velocity field in the solar photosphere near H-alpha filaments

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995azh....72..932i&link_type=abstract

Astronomicheskij Zhurnal, vol. 72, p. 932

Astronomy and Astrophysics

Astronomy

2

Solar Atmosphere, Photosphere, Velocity Distribution, H Alpha Line, Solar Activity, Telescopes, Magnetohydrodynamic Stability

Scientific paper

Results are presented of measurements of the photospheric velocity field under two solar active region filaments observed in 1991 and 1992 on the IZMIRAN solar tower telescope using a magnetograph and an integrated interference spectrograph. It is shown that the stable parts of the filaments are located on the boundary between regions of rising and sinking photospheric material. The relationship between the structure of the photospheric velocity field and the type of filament and its characteristic stability is considered.

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