Upper panel of the plot shows the radial velocity curve. Symbols are as follows: circles = CORALIE, (red) squares = HARPS, (blue) filled triangles = FEROS, open triangles = Leone & Catanzaro (1999), filled diamonds = Palomar plates of Dworetsky et al. (1982), crosses = SAAO plates of Dworetsky et al. (1982), and (green) pluses = Campbell & Moore (1928). Residuals observed-minus-calculated for our high-resolution measurements are shown in the lower panel.
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