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McLure, R.J. and Pentericci, L. and Cimatti, A. and Dunlop, J.S. and Elbaz, D. and Fontana, A. and Nandra, K. and Amorin, R. and Bolzonella, M. and Bongiorno, A. and Carnall, A.C. and Castellano, M. and Cirasuolo, M. and Cucciati, O. and Cullen, F. and De Barros, S. and Finkelstein, S.L. and Fontanot, F. and Franzetti, P. and Fumana, M. and Gargiulo, A. and Garilli, B. and Guaita, L. and Hartley, W.G. and Iovino, A. and Jarvis, M.J. and Juneau, S. and Karman, W. and Maccagni, D. and Marchi, F. and Mármol-Queraltó, E. and Pompei, E. and Pozzetti, L. and Scodeggio, M. and Sommariva, V. and Talia, M. and Almaini, O. and Balestra, I. and Bardelli, S. and Bell, E.F. and Bourne, N. and Bowler, R.A.A. and Brusa, M. and Buitrago, F. and Caputi, K.I. and Cassata, P. and Charlot, S. and Citro, A. and Cresci, G. and Cristiani, S. and Curtis-Lake, E. and Dickinson, M. and Fazio, G.G. and Ferguson, H.C. and Fiore, F. and Franco, M. and Fynbo, J P U and Galametz, A. and Georgakakis, A. and Giavalisco, M. and Grazian, A. and Hathi, N.P. and Jung, I. and Kim, S. and Koekemoer, A.M. and Khusanova, Y. and Le Fèvre, O. and Lotz, J.M. and Mannucci, F. and Maltby, D.T. and Matsuoka, K. and McLeod, D.J. and Mendez-Hernandez, H. and Mendez-Abreu, J. and Mignoli, M. and Moresco, M. and Mortlock, A. and Nonino, M. and Pannella, M. and Papovich, C. and Popesso, P. and Rosario, D.P. and Salvato, M. and Santini, P. and Schaerer, D. and Schreiber, C. and Stark, D.P. and Tasca, L.A.M. and Thomas, R. and Treu, T. and Vanzella, E. and Wild, V. and Williams, C.C. and Zamorani, G. and Zucca, E. (2018) The VANDELS ESO public spectroscopic survey. Monthly Notices of the Royal Astronomical Society, 479 (1). pp. 25-42. ISSN 1365-2966

Abstract

VANDELS is a uniquely deep spectroscopic survey of high-redshift galaxies with the VIMOS spectrograph on ESO’s Very Large Telescope (VLT). The survey has obtained ultradeep optical (0.48 < λ < 1.0 μm) spectroscopy of ≃2100 galaxies within the redshift interval 1.0 ≤ z ≤ 7.0, over a total area of ≃0.2 deg2 centred on the CANDELS Ultra Deep Survey and Chandra Deep Field South fields. Based on accurate photometric redshift pre-selection, 85 per cent of the galaxies targeted by VANDELS were selected to be at z ≥ 3. Exploiting the red sensitivity of the refurbished VIMOS spectrograph, the fundamental aim of the survey is to provide the high-signal-to-noise ratio spectra necessary to measure key physical properties such as stellar population ages, masses, metallicities, and outflow velocities from detailed absorption-line studies. Using integration times calculated to produce an approximately constant signal-to-noise ratio (20 < tint< 80 h), the VANDELS survey targeted: (a) bright star-forming galaxies at 2.4 ≤ z ≤ 5.5, (b) massive quiescent galaxies at 1.0 ≤ z ≤ 2.5, (c) fainter star-forming galaxies at 3.0 ≤ z ≤ 7.0, and (d) X-ray/Spitzer-selected active galactic nuclei and Herschel-detected galaxies. By targeting two extragalactic survey fields with superb multiwavelength imaging data, VANDELS will produce a unique legacy data set for exploring the physics underpinning high-redshift galaxy evolution. In this paper, we provide an overview of the VANDELS survey designed to support the science exploitation of the first ESO public data release, focusing on the scientific motivation, survey design, and target selection.

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