On the depth dependence of the solar rotation velocity determined from Fraunhofer lines

Details On the depth dependence of the solar rotation velocity determined from Fraunhofer lines On the depth dependence of the solar rotation velocity determined from Fraunhofer lines

Apr 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983soph...84..371b&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 84, April 1983, p. 371-376.

Physics

6

Angular Velocity, Dynamo Theory, Fraunhofer Lines, Photosphere, Solar Rotation, Solar Spectra, Chromosphere, Least Squares Method, Reference Atmospheres

Scientific paper

From 63 mostly unblended Fraunhofer lines measured along the solar east-west diameter the rotation velocity has been determined. The mean value is 1986 km s-1. The velocity decreases with the optical depth in the photosphere. Over a range of 700 km the difference of the velocities is 41 m s-1 for the Holweger-Müller atmosphere or 34 m s-1 for the Harvard Smithsonian reference atmosphere.

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