Table 1.
Quasar sample and log of X-shooter observations
| Quasar (SDSS) (a) | z | Observing dates | Seeing (b) (arcsec) | Airmass | Ref. |
|---|---|---|---|---|---|
| J001514.82+184212.3 | 2.63 | 29/07, 31/08, 31/08, 28/09 2019 | 1.67, 0.75, 0.65, 0.53 | 1.48, 1.39, 1.41, 1.42 | (1) |
| J001930.55–013708.4 | 2.53 | 06/11, 07/11, 08/11 2021 | 0.91, 0.72, 0.71 | 1.30, 1.26, 1.16 | (2) |
| J005917.64+112407.7 | 3.03 | 09/11, 09/11, 09/11 2021 | 0.77, 0.80, 1.14 | 1.24, 1.30, 1.47 | (2) |
| J012555.11–012925.0 | 2.66 | 21/07, 01/09, 01/09, 11/10, 25/11 2021 | 1.14, 1.00, 0.98, 1.22, 0.92 | 1.11, 1.10, 1.17, 1.10, 1.17 | (3) |
| J013644.02+044039.1 | 2.78 | 27/11, 28/11 2014 | 1.15, 1.15 | 1.16, 1.26 | (4) |
| J085859.67+174925.1 | 2.65 | 24/12 2014, 15/02 2015 | 0.73, 1.38 | 1.36, 1.37 | (4) |
| J123602.11+001024.5 | 3.03 | 07/02, 07/02, 07/02 2022 | 0.73, 0.83,0.87 | 1.20,1.12,1.11 | (2) |
| J124829.51+063925.6 | 2.53 | 08/02, 07/03, 07/03 2022 | 1.21, 0.61,0.65 | 1.19, 1.18, 1.19 | (2) |
| J125917.31+030922.5 | 3.23 | 06/02, 06/02 2022 | 0.79, 0.93 | 1.33, 1.43 | (2) |
| J133111.41+020609.0 | 2.92 | 08/03, 29/05, 29/05 2022 | 0.80, 0.84, 0.98 | 1.25,1.17,1.30 | (2) |
| J135808.94+141053.2 | 2.89 | 25/02, 01/03, 07/03 2022 | 1.01, 0.79, 0.68 | 1.29, 1.29, 1.30 | (2) |
| J222807.36–022117.1 | 2.77 | 31/08, 15/09, 12/10, 26/10 2021 | 0.87, 0.71, 0.84, 0.85 | 1.10, 1.12, 1.09, 1.09 | (2) |
| J232506.62+153929.3 | 2.62 | 29/08, 31/08, 30/09 2019 | 0.84, 0.77, 0.67 | 1.33, 1.33, 1.34 | (2) |
Notes.
The actual object designation following the rules from the International Astronomy Union, includes the SDSS preceding the J2000 coordinates sequence provided in this column.
Delivered seeing corrected for airmass, as measured at the telescope by the Shack-Hartmann wavefront sensor (fits keyword HIERARCH ESO TEL IA FWHM).
References. (1) Noterdaeme et al. (2021a); (2) this work; (3) Balashev et al. (in prep); (4) Balashev et al. (2019).
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