Steady flows in the solar transition region observed with SMM

Details Steady flows in the solar transition region observed with SMM Steady flows in the solar transition region observed with SMM

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...251l.115g&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 251, Dec. 15, 1981, p. L115-L118.

Astronomy and Astrophysics

Astrophysics

73

Chromosphere, Satellite Observation, Solar Atmosphere, Solar Maximum Mission, Steady Flow, Ultraviolet Spectroscopy, Line Shape, Photosphere, Polarimeters, Solar Corona, Solar Limb

Scientific paper

Steady flows in the quiet solar transition region have been observed with the Ultraviolet Spectrometer and Polarimeter experiment on the Solar Maximum Mission (SMM) satellite. The persistent vertical motions seen at disk center have spatial rms amplitudes of 1.4 km/s in the C II line, 3.9 km/s in Si IV, and 4.2 km/s in C IV. The amplitudes of the more horizontal flows seen toward the limb tend to be somewhat higher. Plots of steady vertical velocity versus intensity seen at disk center in Si IV and C IV show two distinct branches.

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