Physics
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988soph..117...13g&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 117, no. 1, 1988, p. 13-20.
Physics
Angular Velocity, Solar Rotation, Velocity Measurement, Line Of Sight, Solar Velocity
Scientific paper
The authors propose a method to determine the surface velocity of solar rotation. The method rests on measurements of the line-of-sight velocity difference between two elements on the solar disk which are symmetric about the central meridian at the same heliolatitude. This is a simple method which is largely free from the influence of spectrograph noise and instrumental drifts and permits several measurements to be made during one day. Results of trial observations are reported. The rotation curve obtained is notable for the large value of equatorial velocity as well as a steeper dip with increasing latitude.
Grigor'ev Victor M.
Ilgamov R. M.
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