Using 3D solar simulations, 72 spectral lines show that weak lines have the largest granulation-induced RV variability (up to 40–50 m/s), strong lines vary most in equivalent width, and most lines' RV and width change coherently in time.
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Towards understanding stellar variability at the sub m/s level: granulation-induced variability across the optical spectrum
Using 3D solar simulations, 72 spectral lines show that weak lines have the largest granulation-induced RV variability (up to 40–50 m/s), strong lines vary most in equivalent width, and most lines' RV and width change coherently in time.