Astronomy and Astrophysics – Astronomy
Scientific paper
May 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977mnras.179..339p&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 179, May 1977, p. 339-350.
Astronomy and Astrophysics
Astronomy
7
Atmospheric Circulation, Chromosphere, Photosphere, Solar Atmosphere, Solar Limb, Solar Spectra, Absorption Spectra, Atmospheric Models, Curve Fitting, Doppler Effect, Least Squares Method, Line Spectra
Scientific paper
The possibility is considered that some effect of photospheric velocity is contained within the wavelength of the center of gravity of an asymmetric solar line measured with a micrometer microscope from a grating spectrum of some specified point on the solar disk and within the interferometrically known wavelength of the same line at the center of the disk. An attempt is made to show that apparent anomalies in solar wavelengths are due to a radial current with vertical velocity and that the limb effect is probably a consequence of this current. A vertical velocity of about 0.39 km/s is obtained from analysis of the limb effect, and both photospheric and chromospheric origins of the radial current are investigated. It is concluded that there is insufficient information to determine whether this current occurs in the photosphere or the chromosphere.
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