The VIMOS Public Extragalactic Redshift Survey (VIPERS): Never mind the gaps: comparing techniques to restore homogeneous sky coverage
Year: 2014
Type: article
Abstract: Aims. Non-uniform sampling and gaps in sky coverage are common in galaxy redshift surveys, but these effects can degrade galaxy counts-in-cells measurements and density estimates. We carry out a comparative study of methods that aim to fill the gaps to correct for the systematic effects. Our study is motivated by the analysis of the VIMOS Public Extragalactic Redshift Survey (VIPERS), a flux-limited survey at iAB < 22.5 consisting of single-pass observations with the VLT Visible Multi-Object Spectrograph (VIMOS) with gaps representing 25% of the surveyed area and an averagesampling rate of 35%. However, our findings are generally applicable to other redshift surveys with similar observing strategies.
Source: Astronomy and Astrophysics
Authors: O. Cucciati, B. R. Granett, E. Branchini, F. Marulli, A. Iovino, L. Moscardini, J. Bel, A. Cappi, J. A. Peacock, S. de la Torre, M. Bolzonella, L. Guzzo, M. Polletta, A. Fritz, C. Adami, D. Bottini, J. Coupon, I. Davidzon, P. Franzetti, M. Fumana, B. Garilli, J. Krywult, K. Małek, L. Paioro, A. Pollo, M. Scodeggio, L. A. M. Tasca, D. Vergani, A. Zanichelli, C. Di Porto, G. Zamorani
Institutions: Osservatorio astronomico di Bologna, University of Bologna, Brera Astronomical Observatory, National Institute for Astrophysics, Roma Tre University, Astronomical Observatory of Rome, Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre, Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Royal Observatory, University of Edinburgh, University of Milano-Bicocca, Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano, Centre National de la Recherche Scientifique, Aix-Marseille Université, Laboratoire d’Astrophysique de Marseille, University of Geneva, Jan Kochanowski University, Nagoya University, Jagiellonian University, National Centre for Nuclear Research, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, Istituto di Radioastronomia di Bologna
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2013822281