Spatial distribution of line-of-sight velocities in a quiescent prominence

Details Spatial distribution of line-of-sight velocities in a quiescent prominence Spatial distribution of line-of-sight velocities in a quiescent prominence

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.344..161d&link_type=abstract

In ESA, Solar Physics and Astrophysics at Interferometric Resolution p 161-164 (SEE N93-10901 01-90)

Astronomy and Astrophysics

Astrophysics

Prominences, Solar Oscillations, Solar Prominences, Spatial Distribution, Velocity Distribution, H Beta Line, Image Dissector Tubes, Line Of Sight, Magnetohydrodynamic Waves, Solar Optical Telescope

Scientific paper

Doppler velocity observations in a quiescent prominence were performed. A device based on an image dissector (television tube) was used, and the Doppler velocity profile in prominence height was measured quasi-simultaneously at two intensity levels in the line H (beta) 486.1 nm. It was found that through the entire height of the prominence, there are 3 to 4 elements with quasi-hourly oscillations. Relative to each other, the oscillations in these elements show a random phase. The distance between such elements is about 20 inches. Quasi-five-minute oscillations have a train like character and a random phase at neighboring points of the prominence (separation about 4 inches).

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