Is the local Hubble flow consistent with concordance cosmology?

被引：3

作者：

Bengaly, Carlos A. P. ^{[1
]}

Larena, Julien ^{[2
]}

Maartens, Roy ^{[1
,3
]}

机构：

[1] Univ Western Cape, Dept Phys & Astron, ZA-7535 Cape Town, South Africa

[2] Univ Cape Town, Dept Math & Appl Math, ZA-7701 Cape Town, South Africa

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

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2019年 / 03期

基金：

新加坡国家研究基金会;

关键词：

cosmic web; cosmic flows; cosmological simulations; COSMIC HOMOGENEITY; BULK FLOW; SCALE; UNIVERSE; MOTION;

D O I：

10.1088/1475-7516/2019/03/001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Yes. In a perturbed Friedmann model, the difference of the Hubble constants measured in two rest-frames is independent of the source peculiar velocity and depends only on the relative velocity of the observers, to lowest order in velocity. Therefore this difference should be zero when averaging over sufficient sources, which are at large enough distances to suppress local nonlinear inhomogeneity. We use a linear perturbative analysis to predict the Doppler effects on redshifts and distances. Since the observed redshifts encode the effect of local bulk flow due to nonlinear structure, our linear analysis is able to capture aspects of the nonlinear behaviour. Using the largest available distance compilation from CosmicFlows-3, we find that the data is consistent with simulations based on the concordance model, for sources at 20 - 150 Mpc.

引用

页数：14

共 44 条

[1] 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

[2] The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample [J].

Alam, Shadab ;

Ata, Metin ;

Bailey, Stephen ;

Beutler, Florian ;

Bizyaev, Dmitry ;

Blazek, Jonathan A. ;

Bolton, Adam S. ;

Brownstein, Joel R. ;

Burden, Angela ;

Chuang, Chia-Hsun ;

Comparat, Johan ;

Cuesta, Antonio J. ;

Dawson, Kyle S. ;

Eisenstein, Daniel J. ;

Escoffier, Stephanie ;

Gil-Marin, Hector ;

Grieb, Jan Niklas ;

Hand, Nick ;

Ho, Shirley ;

Kinemuchi, Karen ;

Kirkby, David ;

Kitaura, Francisco ;

Malanushenko, Elena ;

Malanushenko, Viktor ;

Maraston, Claudia ;

McBride, Cameron K. ;

Nichol, Robert C. ;

Olmstead, Matthew D. ;

Oravetz, Daniel ;

Padmanabhan, Nikhil ;

Palanque-Delabrouille, Nathalie ;

Pan, Kaike ;

Pellejero-Ibanez, Marcos ;

Percival, Will J. ;

Petitjean, Patrick ;

Prada, Francisco ;

Price-Whelan, Adrian M. ;

Reid, Beth A. ;

Rodriguez-Torres, Sergio A. ;

Roe, Natalie A. ;

Ross, Ashley J. ;

Ross, Nicholas P. ;

Rossi, Graziano ;

Alberto Rubino-Martin, Jose ;

Saito, Shun ;

Salazar-Albornoz, Salvador ;

Samushia, Lado ;

Sanchez, Ariel G. ;

Satpathy, Siddharth ;

Schlegel, David J. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 470 (03) :2617-2652

[3] Homogeneity and isotropy in the Two Micron All Sky Survey Photometric Redshift catalogue [J].

Alonso, D. ;

Salvador, A. I. ;

Sanchez, F. J. ;

Bilicki, M. ;

Garcia-Bellido, J. ;

Sanchez, E. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 449 (01) :670-684

[4] Isotropy of low redshift type Ia supernovae: A Bayesian analysis [J].

Andrade, U. ;

Bengaly, C. A. P. ;

Alcaniz, J. S. ;

Santos, B. .

PHYSICAL REVIEW D, 2018, 97 (08)

[5] PROBING BULK FLOW WITH NEARBY SNe Ia DATA [J].

Appleby, Stephen ;

Shafieloo, Jarman ;

Johnson, Andrew .

ASTROPHYSICAL JOURNAL, 2015, 801 (02)

[6] Constraining the local variance of H0 from directional analyses [J].

Bengaly, C. A. P., Jr. .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2016, (04)

[7] Differential cosmic expansion and the Hubble flow anisotropy [J].

Bolejko, Krzysztof ;

Nazer, M. Ahsan ;

Wiltshire, David L. .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2016, (06)

[8] Fluctuations of the luminosity distance [J].

Bonvin, C ;

Durrer, R ;

Gasparini, MA .

PHYSICAL REVIEW D, 2006, 73 (02)

[9] Inhomogeneity and the foundations of concordance cosmology [J].

Clarkson, Chris ;

Maartens, Roy .

CLASSICAL AND QUANTUM GRAVITY, 2010, 27 (12)

[10] Probing the anisotropic local Universe and beyond with SNe Ia data [J].

Colin, Jacques ;

Mohayaee, Roya ;

Sarkar, Subir ;

Shafieloo, Arman .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 414 (01) :264-271

← 1 2 3 4 5 →