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We present here a dataset of quasars observed with the Ultraviolet VisualEchelle Spectrograph (UVES) on the VLT and available in the ESO UVES AdvancedData Products archive. The sample is made up of a total of 250 high resolutionquasar spectra with emission redshifts ranging from 0.191 < z_em <6.311. Thetotal UVES exposure time of this dataset is 1560 hours. Thanks to the highresolution of UVES spectra, it is possible to unambiguously measure the columndensity of absorbers with damping wings, down to N_HI > 10^{19} cm^{-2}, whichconstitutes the sub-damped Lya absorber (sub-DLA) threshold. Within thewavelength coverage of our UVES data, we find 150 damped Lya systems(DLAs)/sub-DLAs in the range 1.5 < z_abs < 4.7. Of these 150, 93 are DLAs and57 are sub-DLAs. An extensive search in the literature indicates that 6 ofthese DLAs and 13 of these sub-DLAs have their N_HI measured for the firsttime. Among them, 10 are new identifications as DLAs/sub-DLAs. For each ofthese systems, we obtain an accurate measurement of the HI column density andthe absorber's redshift in the range 1.7 < z_abs < 4.2 by implementing a Voigtprofile-fitting algorithm. These absorbers are further confirmed thanks to thedetection of associated metal lines and/or lines from members of the Lymanseries. In our data, a few quasars' lines-of-sight are rich. An interestingexample is towards QSO J0133+0400 (z_em = 4.154) with six DLAs and sub-DLAsreported.

The ESO UVES Advanced Data Products Quasar Sample - I. Dataset and New N_HI Measurements of Damped Absorbers