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The solar gravitational redshift from HARPS-LFC Moon spectra

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The solar gravitational redshift from HARPS-LFC Moon spectra

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  • Author: J. I. González Hernández, R. Rebolo, L. Pasquini, G. Lo Curto, P. Molaro, E. Caffau, H.-G. Ludwig, M.Steffen, M. Esposito, A. Suárez Mascareño, B. Toledo-Padrón, R. A. Probst, T. W. Hänsch, R.Holzwarth, A. Manescau, T. Steinmetz, Th. Udem, and T. Wilken
The general theory of relativity predicts the redshift of spectral lines in the solar photosphere as a consequence of the gravitational potential of the Sun. This effect can be measured from a solar disk-integrated flux spectrum of the Sun’s reflected light on Solar System bodies.

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