The VIMOS Public Extragalactic Redshift Survey (VIPERS) ^⋆

Galaxy clustering and redshift-space distortions at z ≃ 0.8 in the first data release

¹ SUPA, Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK
e-mail: sdlt@roe.ac.uk
² INAF – Osservatorio Astronomico di Brera, via Brera 28, 20122 Milano, via E. Bianchi 46, 23807 Merate, Italy
³ Dipartimento di Fisica, Università di Milano-Bicocca, P.zza della Scienza 3, 20126 Milano, Italy
⁴ Dipartimento di Matematica e Fisica, Università degli Studi Roma Tre, via della Vasca Navale 84, 00146 Roma, Italy
⁵ INFN, Sezione di Roma Tre, via della Vasca Navale 84, 00146 Roma, Italy
⁶ INAF – Osservatorio Astronomico di Roma, via Frascati 33, 00040 Monte Porzio Catone ( RM), Italy
⁷ INAF – Osservatorio Astrofisico di Torino, 10025 Pino Torinese, Italy
⁸ Aix Marseille Université, CNRS, LAM (Laboratoire d’Astrophysique de Marseille) UMR 7326, 13388 Marseille, France
⁹ Canada-France-Hawaii Telescope, 65–1238 Mamalahoa Highway, Kamuela, HI 96743, USA
¹⁰ Centre de Physique Théorique, UMR 6207 CNRS-Université de Provence, Case 907, 13288 Marseille, France
¹¹ INAF – Osservatorio Astronomico di Bologna, via Ranzani 1, 40127 Bologna, Italy
¹² INAF – Istituto di Astrofisica Spaziale e Fisica Cosmica Milano, via Bassini 15, 20133 Milano, Italy
¹³ Laboratoire Lagrange, UMR7293, Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d’Azur, 06300 Nice, France
¹⁴ Institute of Astronomy and Astrophysics, Academia Sinica, PO Box 23-141, 10617 Taipei, Taiwan
¹⁵ Dipartimento di Fisica e Astronomia - Università di Bologna, viale Berti Pichat 6/2, 40127 Bologna, Italy
¹⁶ INAF – Osservatorio Astronomico di Trieste, via G. B. Tiepolo 11, 34143 Trieste, Italy
¹⁷ Institute of Physics, Jan Kochanowski University, ul. Swietokrzyska 15, 25-406 Kielce, Poland
¹⁸ Department of Particle and Astrophysical Science, Nagoya University, Furo-cho, Chikusa-ku, 464-8602 Nagoya, Japan
¹⁹ INFN, Sezione di Bologna, viale Berti Pichat 6/2, 40127 Bologna, Italy
²⁰ Institute d’Astrophysique de Paris, UMR7095 CNRS, Université Pierre et Marie Curie, 98bis Boulevard Arago, 75014 Paris, France
²¹ Institute of Cosmology and Gravitation, Dennis Sciama Building, University of Portsmouth, Burnaby Road, Portsmouth, PO1 3FX, UK
²² Astronomical Observatory of the Jagiellonian University, Orla 171, 30-001 Cracow, Poland
²³ National Centre for Nuclear Research, ul. Hoza 69, 00-681 Warszawa, Poland
²⁴ Universitätssternwarte München, Ludwig-Maximillians Universität, Scheinerstr. 1, 81679 München, Germany
²⁵ Max-Planck-Institut für Extraterrestrische Physik, 84571 Garching b. München, Germany
²⁶ INAF – Istituto di Astrofisica Spaziale e Fisica Cosmica Bologna, via Gobetti 101, 40129 Bologna, Italy
²⁷ INAF – Istituto di Radioastronomia, via Gobetti 101, 40129 Bologna, Italy
²⁸ Università degli Studi di Milano, via G. Celoria 16, 20130 Milano, Italy
²⁹ Dipartimento di Fisica dell’Università di Trieste, Sezione di Astronomia, via Tiepolo 11, 34131 Trieste, Italy

Received: 13 March 2013
Accepted: 10 July 2013

Abstract

We present the general real- and redshift-space clustering properties of galaxies as measured in the first data release of the VIPERS survey. VIPERS is a large redshift survey designed to probe in detail the distant Universe and its large-scale structure at 0.5 < z < 1.2. We describe in this analysis the global properties of the sample and discuss the survey completeness and associated corrections. This sample allows us to measure the galaxy clustering with an unprecedented accuracy at these redshifts. From the redshift-space distortions observed in the galaxy clustering pattern we provide a first measurement of the growth rate of structure at z = 0.8: fσ₈ = 0.47 ± 0.08. This is completely consistent with the predictions of standard cosmological models based on Einstein gravity, although this measurement alone does not discriminate between different gravity models.