Absolute wavelengths of Fraunhofer lines: Convective motions in the solar photosphere and the gravitational red shift |
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| Authors: | D L Lambert E A Mallia |
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| Institution: | (1) Dept. of Astrophysics, University Observatory, Oxford;(2) Present address: Mount Wilson and Palomar Observatories, Pasadena, Calif., U.S.A. |
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| Abstract: | Absolute wavelengths for Fraunhofer lines are compared with laboratory measurements for several atomic and molecular spectra. The wavelength differences are shown to be consistent with the proposal that the deeper layers of the photosphere are in convective motion: 
e
 -3 km/sec for log  0> -1.0. Convective motions in the outer layers (log0< - 1.0) are shown to be very small. Wavelength shifts of Fraunhofer lines formed in these outer layers are in good quantitative agreement with the predictions of the General Theory of Relativity. |
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