Table 1
Observing log for the ESPRESSO observations.
| Planet | Date of observation | Time (UT) | Airmass (a) | Texp (s) | Nobs (in/out) | S/N(b) Na I order | S–index (c) | DRS version |
|---|---|---|---|---|---|---|---|---|
| HD 209458b | 2019-07-20 | 03:43–09:30 | 2.23–1.38–1.89 | 175 | 89(46/43) | 122–261 | 0.127–0.129 | 2.0.0 |
| 2019-09-11 | 00:35–06:06 | 2.00–1.38–1.93 | 175 | 85(46/39) | 132–228 | 0.128–0.130 | 2.0.0 | |
| WASP-52b | 2018-11-01 | 00:51–04:37 | 1.21–1.20–1.87 | 500 | 25(12/13) | 22–30 | 0.467–0.508 | 1.3.2 |
| 2018-11-08 | 00:05–04:24 | 1.22–1.20–1.98 | 800 | 19(9/10) | 24–36 | 0.481–0.511 | 1.3.2 | |
| 2018-11-15 | 00:23–04:13 | 1.20–1.20–2.21 | 800 | 16(8/8) | 26–38 | 0.484–0.504 | 1.3.2 | |
| WASP-76b | 2018-09-03 | 03:49–09:56 | 2.15–1.13–1.37 | 600 | 34(19/13) | 52–117 | 0.111–0.114 | 2.0.0 |
| 2018-10-31 | 01:11–08:13 | 1.48–1.13–2.64 | 300 | 70(37/33) | 64–82 | 0.110–0.114 | 2.0.0 | |
| WASP-127b | 2019-02-25 | 02:00–08:56 | 1.53–1.07–1.95 | 300 | 69(42/25) | 23–62 | 0.118–0.130 | 2.0.0 |
| 2019-03-18 | 00:02–07:28 | 1.84–1.07–1.88 | 300 | 74(42/31) | 30–53 | 0.118–0.127 | 2.0.0 |
Notes. (a) The first and third value refers to the airmass at the beginning and end of the observation, respectively. The second value is the minimum airmass. (b) Minimum and maximum S/N for each observation, calculated in the Na I echelle order. (c) Minimum and maximum Ca II H&K S-index for each observation, computed with the ACTIN2 code (Gomes da Silva et al. 2018, 2021).
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