Consistency of the growth rate in different environments with the 6-degree Field Galaxy Survey: Measurement of the void-galaxy and galaxy-galaxy correlation functions

被引：54

作者：

Achitouv, I. ^{[1
,2
]}

Blake, C. ^{[1
,2
]}

Carter, P. ^{[3
]}

Koda, J. ^{[4
]}

Beutler, F. ^{[3
]}

机构：

[1] Swinburne Univ Technol, Ctr Astrophys & Supercomp, POB 218, Hawthorn, Vic 3122, Australia

[2] ARC Ctr Excellence All Sky Astrophys CAASTRO, Sydney, NSW, Australia

[3] Univ Portsmouth, Inst Cosmol & Gravitat, Dennis Sciama Bldg, Portsmouth PO1 3FX, Hants, England

[4] Univ Roma Tre, Dept Math & Phys, Via Vasca Navale 84, I-00146 Rome, Italy

来源：

PHYSICAL REVIEW D | 2017年 / 95卷 / 08期

基金：

澳大利亚研究理事会;

关键词：

BARYON ACOUSTIC-OSCILLATIONS; REDSHIFT-SPACE DISTORTIONS; COSMIC STRUCTURE FORMATION; POWER-SPECTRUM ANALYSIS; DARK ENERGY; PECULIAR VELOCITIES; MASS; GRAVITY; EVOLUTION; EXPANSION;

D O I：

10.1103/PhysRevD.95.083502

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a new test of gravitational physics by comparing the growth rate of cosmic structure measured around voids with that measured around galaxies in the same large-scale structure data set: the low-redshift 6-degree Field Galaxy Survey. By fitting a redshift space distortion model to the two-dimensional galaxy-galaxy and void-galaxy correlation functions, we recover the growth rate values f sigma(8) = 0.42 +/- 0.06 and 0.39 +/- 0.11, respectively. The environmental dependence of cosmological statistics can potentially discriminate between modified-gravity scenarios which modulate the growth rate as a function of scale or environment and test the underlying assumptions of homogeneity and isotropy.

引用

页数：11

共 56 条

[1] Improving reconstruction of the baryon acoustic peak: The effect of local environment [J].

Achitouv, I. ;

Blake, C. .

PHYSICAL REVIEW D, 2015, 92 (08)

[2] Computation of the halo mass function using physical collapse parameters: application to non-standard cosmologies [J].

Achitouv, I. ;

Wagner, C. ;

Weller, J. ;

Rasera, Y. .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2014, (10)

[3] Testing the imprint of nonstandard cosmologies on void profiles using Monte Carlo random walks [J].

Achitouv, Ixandra .

PHYSICAL REVIEW D, 2016, 94 (10)

[4] Imprint of f(R) gravity on nonlinear structure formation [J].

Achitouv, Ixandra ;

Baldi, Marco ;

Puchwein, Ewald ;

Weller, Jochen .

PHYSICAL REVIEW D, 2016, 93 (10)

[5] Testing spherical evolution for modelling void abundances [J].

Achitouv, Ixandra ;

Neyrinck, Mark ;

Paranjape, Aseem .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 451 (04) :3964-3974

[6] Planck 2015 results XIII. Cosmological parameters [J].

Ade, P. A. R. ;

Aghanim, N. ;

Arnaud, M. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartlett, J. G. ;

Bartolo, N. ;

Battaner, E. ;

Battye, R. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bonaldi, A. ;

Bonavera, L. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chary, R. -R. ;

Chiang, H. C. ;

Chluba, J. ;

Christensen, P. R. ;

Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Combet, C. ;

Coulais, A. ;

Crill, B. P. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. ;

Davies, R. D. ;

Davis, R. J. ;

de Bernardis, P. .

ASTRONOMY & ASTROPHYSICS, 2016, 594

[7] EVOLUTION FREE TEST FOR NON-ZERO COSMOLOGICAL CONSTANT [J].

ALCOCK, C ;

PACZYNSKI, B .

NATURE, 1979, 281 (5730) :358-359

[8] Imprints of dark energy on cosmic structure formation - I. Realistic quintessence models and the non-linear matter power spectrum [J].

Alimi, J-M. ;

Fuzfa, A. ;

Boucher, V. ;

Rasera, Y. ;

Courtin, J. ;

Corasaniti, P-S. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2010, 401 (02) :775-790

[9]

[Anonymous], ARXIV161107046

[10]

[Anonymous], ARXIV161109787

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