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Table 2

RV measurements K2-106 obtained with HARPS-N1 and HARPS2.

RV4 ± σ Instrument FWHM BIS Ca II-S-index S / N
–2 450 000 [ km s-1] [ km s-1] [ km s-1] [ km s-1]
7692.379446 –15.7430 0.0034 HARPS-N 6.82659 –0.045 0.164 ± 0.013 −4.94 ± 0.08 27.3 ± 1.2
7692.449096 –15.7332 0.0028 HARPS-N 6.82738 –0.046 0.166 ± 0.010 −4.93 ± 0.06 31.6 ± 1.1
7692.530008 –15.7332 0.0031 HARPS-N 6.83729 –0.049 0.159 ± 0.011 −4.97 ± 0.07 30.8 ± 1.1
7692.602841 –15.7323 0.0017 HARPS-N 6.83159 –0.044 0.154 ± 0.005 −5.01 ± 0.04 49.0 ± 1.5
7693.372417 –15.7358 0.0020 HARPS-N 6.82553 –0.027 0.138 ± 0.011 −5.14 ± 0.10 32.7 ± 1.2
7693.458907 –15.7400 0.0040 HARPS-N 6.84200 –0.037 0.154 ± 0.016 −5.01 ± 0.11 25.8 ± 1.1
7693.526485 –15.7428 0.0033 HARPS-N 6.82186 –0.034 0.169 ± 0.013 −4.91 ± 0.07 29.4 ± 1.1
7693.623125 –15.7309 0.0040 HARPS-N 6.82752 –0.019 0.194 ± 0.017 −4.79 ± 0.07 25.9 ± 1.8
7694.378314 –15.7309 0.0027 HARPS-N 6.81469 –0.040 0.146 ± 0.009 −5.07 ± 0.08 33.2 ± 1.2
7694.463901 –15.7341 0.0033 HARPS-N 6.83332 –0.052 0.150 ± 0.012 −5.04 ± 0.09 29.0 ± 1.0
7694.532289 –15.7372 0.0025 HARPS-N 6.81328 –0.047 0.147 ± 0.008 −5.06 ± 0.07 35.4 ± 1.1
7782.372461 –15.7278 0.0032 HARPS-N 6.83734 –0.037 0.148 ± 0.011 −5.05 ± 0.09 31.4 ± 1.7
7686.681371 –15.7431 0.0046 HARPS 6.88550 –0.019908 0.144 ± 0.023 −5.09 ± 0.19 23.1 ± 1.3
7688.599844 –15.7245 0.0032 HARPS 6.89222 –0.044137 0.151 ± 0.014 −5.03 ± 0.11 31.0 ± 1.4
7689.614348 –15.7419 0.0030 HARPS 6.89334 –0.024879 0.123 ± 0.013 −5.32 ± 0.19 32.4 ± 1.3
7689.664034 –15.7353 0.0024 HARPS 6.90754 –0.031006 0.172 ± 0.010 −4.90 ± 0.06 38.6 ± 1.3
7690.634880 –15.7407 0.0032 HARPS 6.89677 –0.026417 0.146 ± 0.016 −5.07 ± 0.13 30.9 ± 1.3
7690.707945 –15.7422 0.0031 HARPS 6.91026 –0.032698 0.187 ± 0.015 −4.87 ± 0.08 32.2 ± 1.4
7691.580784 –15.7225 0.0024 HARPS 6.89344 –0.034861 0.134 ± 0.010 −5.18 ± 0.10 38.9 ± 1.4
7691.694275 –15.7339 0.0027 HARPS 6.90384 –0.034266 0.118 ± 0.013 −5.60 ± 0.35 36.1 ± 1.4
7694.633396 –15.7395 0.0033 HARPS 6.91074 –0.027830 0.230 ± 0.016 −4.66 ± 0.05 30.5 ± 1.3
7694.707919 –15.7359 0.0035 HARPS 6.90179 –0.007927 0.126 ± 0.018 −5.43 ± 0.34 29.5 ± 1.5
7695.599038 –15.7294 0.0044 HARPS 6.91306 –0.036791 0.184 ± 0.020 −4.84 ± 0.10 24.2 ± 1.3
7695.682507 –15.7343 0.0042 HARPS 6.93653 –0.016037 0.198 ± 0.020 −4.82 ± 0.09 25.3 ± 1.4
7696.568244 –15.7246 0.0034 HARPS 6.90287 –0.035173 0.081 ± 0.015 6 29.1 ± 1.4
7696.642708 –15.7293 0.0029 HARPS 6.88997 –0.035394 0.158 ± 0.013 −5.05 ± 0.10 33.9 ± 1.3
7697.588441 –15.7326 0.0035 HARPS 6.90341 –0.024429 0.141 ± 0.017 −5.11 ± 0.15 29.0 ± 1.3
7697.670196 –15.7336 0.0030 HARPS 6.90300 –0.033715 0.131 ± 0.015 −5.21 ± 0.17 32.9 ± 1.4
7717.539931 –15.7363 0.0036 HARPS 6.90771 –0.008729 0.177 ± 0.016 −4.93 ± 0.10 27.6 ± 1.3
7717.6093475 –15.7502 0.0056 HARPS 6.88414 —0.036983 0.202 ± 0.034 −4.76 ± 0.14 20.3 ± 1.4
7719.534214 –15.7280 0.0028 HARPS 6.90219 –0.032777 0.131 ± 0.014 −5.22 ± 0.16 34.4 ± 1.3
7719.601212 –15.7235 0.0033 HARPS 6.90281 –0.042827 0.165 ± 0.017 −4.94 ± 0.10 30.8 ± 1.3

Notes.

(1)

Systemic RV of HARPS-N: m s-1, jitter term m s-1.

(2)

Systemic RV of HARPS: m s-1, jitter term m s-1.

(3)

Barycentric Julian dates are given in barycentric dynamical time.

(4)

Absolute RV.

(5)

Spectrum with very low S/N, not used for the fit.

(6)

Value could not be obtained.

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