Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....93...67p&link_type=abstract
Astronomy and Astrophysics, vol. 93, no. 1-2, Jan. 1981, p. 67-70. Research supported by the Deutsche Forschungsgemeinschaft.
Astronomy and Astrophysics
Astrophysics
31
Doppler Effect, Plasma Dynamics, Rotating Plasmas, Solar Rotation, Solar Spectra, Solar Wind Velocity, Computer Techniques, Linear Arrays, Photodiodes
Scientific paper
Doppler shifts of the solar Fe line 630.15 nm relative to the terrestrial O2 line 630.2 nm were determined at many positions on the solar disk to investigate the rotation of the solar plasma and locate large-scale plasma motions. The spectrum was measured by a self-scanning linear photodiode array with 128 diodes; and average rotation velocity of (2.881 plus or minus 0.027) microrad/s was found at the solar equator in September 1978, and large-scale velocity pattern occurred between plus 40 and minus 30 deg in latitude with a period of 45 deg in longitude during Sept. 6 to 13, 1978.
Perez Garde M.
Schwan Heiner
Vazquez Manuel
Woehl Hubertus
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