Table 3
3σ upper limits of the non-detections obtained with the cross-correlation technique.
| Species | Number of lines | 1-pixel upper limit (ppm) | 1-pixel upper limit (H)(a) | Line width (km s−1) | Line upper limit (ppm) | Line upper limit (H) | S/N rec.(b) |
|---|---|---|---|---|---|---|---|
| Y I | 870 | 40 | 36 (c) | 1.4 | 1.3 | 6.1 | 12 | 10 | 0.4 | 0.4 | 3.8 | 4.5 |
| V I | 1100 | 40 | 35 | 1.4 | 1.2 | 6.4 | 11 | 10 | 0.4 | 0.3 | 4.2 | 5.5 |
| V II | 100 | 147 | 134 | 5.2 | 4.8 | 5.9 (d) | 43 | 39 | 1.5 | 1.4 | <1.0 |
| CaH | 1500 | 26 | 26 | 0.9 | 0.9 | 3.8 | 9 | 9 | 0.3 | 0.3 | 5.6 | 5.8 |
| TiO | 6000 | 16 | 14 | 0.6 | 0.5 | 2.5 | 7 | 6 | 0.2 | 0.2 | 3.9 | 4.6 |
Notes. (a)Number of scale heights, considering that H = 258 km, which produces an absorption depth of 28 ppm. (b)S/N at which the injected atmospheric models are recovered.(c)The first value is obtained before correcting for the RM and CLV effects as described in Sect. 5.1, while the second value is obtained after this correction.(d)For V II, the signal is not recovered, so the line width is measured after computing the difference between the results obtained with and without the injection.
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