Stellar signal components seen in HARPS and HARPS-N solar radial velocities

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Table 3.

Radial velocity rms contributions.

Component	rms [m s⁻¹]
Observed RVs
HARPS	1.66
HARPS detrended with linear drift	1.58
HARPS detrended with 1-day mean	0.93
HARPS-N	1.74
HARPS-N detrended with 100-day mean	1.37

Recreated RVs
Photon noise	0.24
Oscillations	0.73
Rotation	0.74
Granulation	0.31
Supergranulation	0.68
Total	1.31

Notes. The observed RVs correspond to the data shown in the two upper rows of Fig. 5 and the background data in Fig. 7, and the recreated RVs correspond to the simulated contributions shown in Fig. 7.

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