Table 3
Best-fit parameters of Gaussian fits to Kp−Vres diagram of Fig. 4 at the Kp position where the maximum signal is observed.
| Δ Kp | Amp (σ) | Vres | FWHM | |
|---|---|---|---|---|
| Ca+ | −74.1 ± 0.5 | 21.1 ± 0.5 | 4.9 ± 0.1 | 36.9 ± 0.2 |
| Fe+ | −7.1 ± 0.1 | 12.3 ± 1.1 | −4.0 ± 0.5 | 11.4 ± 1.2 |
| Ti+ | −16.0 ± 0.1 | 7.5 ± 1.1 | −3.4 ± 0.6 | 9.1 ± 1.4 |
| Ba+ | −15.9 ± 0.1 | 11.4 ± −0.6 | −5.2 ± 0.3 | 13.7 ± 0.8 |
| Ca | −11.4 ± 0.1 | 8.1 ± 0.9 | −3.7 ± 0.6 | 10.1 ± 1.4 |
| Fe | −22.2 ± 0.2 | 17.9 ± 1.7 | −3.8 ± 0.5 | 11.1 ± 1.2 |
| Ti | −4.5 ± 0.4 | 10.1 ± 0.7 | −4.3 ± 0.3 | 9.7 ± 0.8 |
| Si | −29.2 ± 0.2 | 5.9 ± 0.9 | −1.4 ± 0.8 | 9.7 ± 1.8 |
| Mg | −6.5 ± 0.3 | 8.1 ± 0.8 | −3.1 ± 0.6 | 11.7 ± 1.4 |
| V | −47.4 ± 0.6 | 5.8 ± 0.5 | −3.1 ± 0.5 | 10.2 ± 1.1 |
| Mn | −5.5 ± 0.6 | 4.0 ± 0.2 | −3.5 ± 0.2 | 12.7 ± 0.6 |
| Cr | −8.8 ± 0.1 | 4.0 ± 0.4 | −1.3 ± 0.8 | 12.5 ± 1.9 |
| Na | −14.2 ± 0.1 | 7.9 ± 1.0 | −1.3 ± 1.2 | 18.3 ± 3.3 |
| VO | −32.8 ± 0.2 | 4.9 ± 0.2 | −12.1 ± 0.2 | 10.5 ± 0.5 |
| All | −20.5 ± 0.1 | 21.1 ± 2.6 | −2.9 ± 0.7 | 11.6 ± 1.7 |
Notes. Amplitude (Amp) corresponds to the best-fit line depth of the absorbing species above the spectral continuum. The amplitude is expressed in units of signal-to-noise ratio (σ), as each map is divided by the standard deviation as explained in Sect. 3.2. Detections range from 4 to 21.1 σ. Vres corresponds to the radial velocity of the line center, as measured in the rest frame of the stellar system (same as ΔVsys). FWHM denotes the Gaussian full width at half maximum. The other parameters are expressed in kilometers per second. The value of ΔKp is calculated by performing a Gaussian fit at the best-fit Vres. The error bars are determined from the covariance matrix of the Gaussian fit.
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