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Table 1

Relevant fixed parameters used to simulate the stellar activity within StarSim.

Parameter Value Units Description
General
λmin 380 nm Lower boundary of spectral range of RV instrument
λmax 690 nm Upper boundary of spectral range of RV instrument
tObs 220 days Time span of simulations
Δt 60 min Time cadence
Radial velocities
ΔυCCF 15 km s−1 CCF velocity range
Mask M2 Spectral mask (G2 or K5 or M2)
Star
Teff 3500 K Stellar effective temperature
TSpot 400 K Spot temperature contrast(1)
Prot 22 d Stellar rotation period
R 0.36 R Stellar radius
log(g) 5 dex Stellar surface gravity
[Fe/H] 0 dex Stellar metallicity
[α/Fe] 0 dex Stellar alpha element abundance
i 90 deg Axis inclination
krot 0 deg day−1 Stellar differential rotation
Spots
0 days Spot lifetime standard deviation
NSpot 9 Average number of spots on surface at any time

Notes.(1) The spot temperature contrast for a dwarf star with Teff = 3500 K is based on the results of Andersen & Korhonen (2015) provided by their Fig. 2.

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