The VIMOS Public Extragalactic Redshift Survey (VIPERS) An unbiased estimate of the growth rate of structure at ⟨z⟩=0.85 using the clustering of luminous blue galaxies

被引：35

作者：

Mohammad, F. G. ^{[1
,2
,3
,4
]}

Granett, B. R. ^{[1
,2
,4
]}

Guzzo, L. ^{[1
,2
,4
]}

Bel, J. ^{[1
,2
,5
]}

Branchini, E. ^{[6
,7
,8
]}

de la Torre, S. ^{[9
]}

Moscardini, L. ^{[10
,11
,12
]}

Peacock, J. A. ^{[13
]}

Bolzonella, M. ^{[12
]}

Garilli, B. ^{[14
]}

Scodeggio, M. ^{[14
]}

Abbas, U. ^{[15
]}

Adami, C. ^{[9
]}

Bottini, D. ^{[14
]}

Cappi, A. ^{[12
,16
]}

Cucciati, O. ^{[10
,12
]}

Davidzon, I. ^{[9
,12
]}

Franzetti, P. ^{[14
]}

Fritz, A. ^{[14
]}

Iovino, A. ^{[1
,2
]}

Krywult, J. ^{[17
]}

Le Brun, V. ^{[9
]}

Le Fevre, O. ^{[9
]}

Maccagni, D. ^{[10
,14
]}

Malek, K. ^{[9
,18
]}

Marulli, F. ^{[10
,11
,12
]}

Polletta, M. ^{[19
,20
]}

Pollo, A. ^{[21
]}

Tasca, L. A. M. ^{[9
]}

Tojeiro, R. ^{[22
]}

Vergani, D. ^{[23
]}

Zanichelli, A. ^{[24
]}

Arnouts, S. ^{[9
,25
]}

Coupon, J. ^{[26
]}

De Lucia, G. ^{[27
]}

Ilbert, O. ^{[9
]}

Moutard, T. ^{[9
,28
]}

机构：

[1] INAF Osservatorio Astronomico Brera, Via Brera 28, I-20122 Milan, Italy

[2] Via E Bianchi 46, I-23807 Merate, Italy

[3] Univ Insubria, Dipartimento Sci & Alta Tecnol, Via Valleggio 11, I-22100 Como, Italy

[4] Univ Milan, Via G Celoria 16, I-20133 Milan, Italy

[5] Univ Toulon & Var, Aix Marseille Univ, CNRS, CPT, F-13288 Marseille, France

[6] Univ Rome, Dipartimento Matemat & Fis, Via Vasca Navale 84, I-00146 Rome, Italy

[7] INFN, Sez Roma Tre, Via Vasca Navale 84, I-00146 Rome, Italy

[8] INAF Osservatorio Astron Roma, Via Frascati 33, I-00040 Monte Porzio Catone, RM, Italy

[9] Aix Marseille Univ, CNRS, LAM, F-13388 Marseille, France

[10] Alma Mater Studiorum Univ, Dipartimento Fis & Astron, Via Gobetti 93-2, I-40129 Bologna, Italy

[11] INFN, Sez Bologna, Viale Berti Pichat 6-2, I-40127 Bologna, Italy

[12] INAF Osservatorio Astron Bologna, Via Gobetti 93-3, I-40129 Bologna, Italy

[13] Univ Edinburgh, Royal Observ, Inst Astron, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland

[14] INAF Ist Astrofis Spaziale & Fis Cosm Milano, Via Bassini 15, I-20133 Milan, Italy

[15] INAF Osservatorio Astrofis Torino, I-10025 Pino Torinese, Italy

[16] Univ Nice Sophia Antipolis, CNRS, Lab Lagrange, UMR 7293,Observ Cote Azur, F-06300 Nice, France

[17] Jan Kochanowski Univ, Inst Phys, Ul Swietokrzyska 15, PL-25406 Kielce, Poland

[18] Natl Ctr Nucl Res, Ul Hoza 69, PL-00681 Warsaw, Poland

[19] Aix Marseille Univ, 58 Bd Charles Livon, F-13284 Marseille 7, France

[20] IRAP, Av 9 Colonel Roche,BP 44346, F-31028 Toulouse 4, France

[21] Jagiellonian Univ, Astron Observ, Orla 171, PL-30001 Krakow, Poland

[22] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Scotland

[23] INAF Ist Astrofis Spaziale & Fis Cosm Bologna, Via Gobetti 101, I-40129 Bologna, Italy

[24] INAF Ist Radioastron, Via Gobetti 101, I-40129 Bologna, Italy

[25] Canada France Hawaii Telescope, 65-1238 Mamalahoa Highway, Kamuela, HI 96743 USA

[26] Univ Geneva, Dept Astron, Ch Ecogia 16, CH-1290 Versoix, Switzerland

[27] INAF Osservatorio Astron Trieste, Via GB Tiepolo 11, I-34143 Trieste, Italy

[28] St Marys Univ, Dept Astron & Phys, 923 Robie St, Halifax, NS B3H 3C3, Canada

来源：

ASTRONOMY & ASTROPHYSICS | 2018年 / 610卷

基金：

欧洲研究理事会;

关键词：

cosmology: observations; large-scale structure of Universe; galaxies: high-redshift; galaxies: statistics; SPACE DISTORTIONS; COLOR DEPENDENCE; PECULIAR VELOCITIES; SYSTEMATIC-ERRORS; POWER-SPECTRUM; REAL-SPACE; SCALE; MODEL; HALOES; EVOLUTION;

D O I：

10.1051/0004-6361/201731685

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We used the VIMOS Public Extragalactic Redshift Survey (VIPERS) final data release (PDR-2) to investigate the performance of colour-selected populations of galaxies as tracers of linear large-scale motions. We empirically selected volume-limited samples of blue and red galaxies as to minimise the systematic error on the estimate of the growth rate of structure f sigma(8) from the anisotropy of the two-point correlation function. To this end, rather than rigidly splitting the sample into two colour classes we defined the red or blue fractional contribution of each object through a weight based on the (U-V) colour distribution. Using mock surveys that are designed to reproduce the observed properties of VIPERS galaxies, we find the systematic error in recovering the fiducial value of f sigma(8) to be minimised when using a volume-limited sample of luminous blue galaxies. We modelled non-linear corrections via the Scoccimarro extension of the Kaiser model (with updated fitting formulae for the velocity power spectra), finding systematic errors on f sigma(8) of below 1-2%, using scales as small as 5 h(-1) Mpc. We interpret this result as indicating that selection of luminous blue galaxies maximises the fraction that are central objects in their dark matter haloes; this in turn minimises the contribution to the measured xi(r(p), pi) from the 1-halo term, which is dominated by non-linear motions. The gain is inferior if one uses the full magnitude-limited sample of blue objects, consistent with the presence of a significant fraction of blue, fainter satellites dominated by non-streaming, orbital velocities. We measured a value of f sigma(8) = 0.45 +/- 0.11 over the single redshift range 0.6 <= z <= 1.0, corresponding to an effective redshift for the blue galaxies < z > = 0.85. Including in the likelihood the potential extra information contained in the blue-red galaxy cross-correlation function does not lead to an appreciable improvement in the error bars, while it increases the systematic error.

引用

页数：20

共 31 条

[31] The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 LRG sample: structure growth rate measurement from the anisotropic LRG correlation function in the redshift range 0.6 < z < 1.0
Icaza-Lizaola, M.
Vargas-Magana, M.
Fromenteau, S.
Alam, S.
Camacho, B.
Gil-Marin, H.
Paviot, R.
Ross, Ashley
Schneider, Donald P.
Tinker, Jeremy
Wang, Yuting
Zhao, Cheng
Prakash, Abhishek
Rossi, G.
Zao, Gong-Bo
Cruz-Gonzalez, Irene
de la Macorra, Axel
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 492 (03) : 4189 - 4215

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