The VANDELS ESO public spectroscopic survey: The spectroscopic measurements catalogue

TL;DR

This paper releases a comprehensive spectroscopic measurements catalogue from the VANDELS survey, detailing emission and absorption line properties of high-redshift galaxies to facilitate further astrophysical research.

Contribution

It provides the first public release of detailed spectroscopic measurements and validation methods for high-redshift galaxy data from the VANDELS survey.

Findings

Catalogue includes emission and absorption line data for ~2100 sources

Validated measurement methods ensure data reliability

Provides correction factors for error spectra

Abstract

VANDELS is a deep spectroscopic survey, performed with the VIMOS instrument at VLT, aimed at studying in detail the physical properties of high-redshift galaxies. VANDELS targeted about 2100 sources at 1<z<6.5 in the CANDELS Chandra Deep-Field South (CDFS) and Ultra-Deep Survey (UDS) fields. In this paper we present the public release of the spectroscopic measurement catalogues from this survey, featuring emission and absorption line centroids, fluxes, and rest-frame equivalent widths obtained through a Gaussian fit, as well as a number of atomic and molecular indices (e.g. Lick) and continuum breaks (e.g. D4000), and including a correction to be applied to the error spectra. We describe the measurement methods and the validation of the codes that were used.