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95/105= 0.91


1,1

Probing cosmology in the outskirts of galaxy clusters

doi: 10.6062/jcis.2014.05.01.0080

Authors

A.P.A. Andrade, A.L.B. Ribeiro, P.A.A Lopes

Abstract

We study a sample of 183 galaxy clusters over a scale of ≤ 6 Mpc to investigate the structure of peculiar velocity field around these systems in order to explore the outskirts of galaxy clusters as cosmological probe for dark energy candidates. We find the velocity profiles around the virial radii of the clusters and compare observational data and theory for a ΛCDM model and a dynamical dark energy model, such as Chevallier-Polarski-Linder parametrization. We find differences higher than 12 percent between ΛCDM and CPL models for R/RV ≥ 5.0 Mpc. These differences exceeds the 2 σ margin around the theoretical profile given by the infall collapse model, suggesting that the velocity field in the outskirts of galaxy clusters can be usefull to investigate cosmological models only in observational ranges ≥ 5.0 Mpc.

Keywords

large scale structures; observational cosmology; model comparison

References

[1] Menci, N; Fusco-Femiano, R; 1996, ApJ, 472, 46

[2] Haiman, Z; Mohr, JJ; Holder, GP; 2001, The Astrophysical Journal, Volume 553, Issue 2, pp. 545-561

[3] Cunha, C; Huteres, D; Frieman, JA; 2009, Physical Review D, vol. 80,Issue 6, id. 063532

[4] Lopes, PAA; 2003, Ph.D. Thesis, Observat ́orio Nacional

[5] Lopes, PAA; de Carvalho RR; Gal RR; Djorgovski SG; Odewahn SC; Mahabal AA; Brunner RJ; 2004, AJ, 128, 1017

[6] Gal, RR; de Carvalho, RR; Lopes, PAA; Djorgovski SG; Brunner R.J; Mahabal AA; Odewahn SC; 2003, AJ, 125, 20642003

[7] Gal, RR; Lopes, PAA; de Carvalho, RR; Kohl-Moreira, JL; Capelato, HV; Djorgovski, SG; 2009, AJ, 137, 2981

[8] Djorgovski SG; de Carvalho RR; Gal RR; Odewahn SC; Mahabal AA;Brunner RJ; Lopes PAA; Kohl-Moreira JL; 2003, Bulletin of the Astronomical Society of Brazil, 23, 197

[9] Gal RR; de Carvalho RR; Odewahn SC; Djorgovski SG; Mahabal AA; Brunner RJ; Lopes PAA; 2004, AJ, 128, 3082

[10] Lopes, PAA; de Carvalho, RR; Kohl-Moreira, JL; Jones, C; 2009, MNRAS, 392, 135

[11] Franceschini, A., et al. 1999, MNRAS, 310, L5

[12] Lopes, PAA; 2007, MNRAS, 380, 1680

[13] Odewahn SC; de Carvalho RR; Gal RR; Djorgovski SG; Brunner RJ; Mahabal AA; Lopes PAA; Kohl-Moreira JL; Stalder B; 2004, AJ, 128, 3092

[14] Lopes, PAA; de Carvalho, RR; Kohl-Moreira, JL; Jones, C; 2009, MNRAS, 392, 135

[15] Rines, K; Diaferio, A; 2006, AJ, 132, 1275

[16] Popesso, P; Biviano, A; B ̈ohringer, H; Romaniello M; 2006, A&A, 29

[17] Chevalier, M; Polarski, D; 2001, Int.J.Mod.Phys.D,10, 213

[18] Linder, VE; 2003, Phys. Rev. Lett., 90, 091301

[19] Li, M; Li, X; Zhang X; 2010, Science China, 53, 9, 1631

[20] Barkana, R; 2004, Mon.Not.Roy.Astron.Soc. 347, 57

[21] Carlberg, RG; Galaxies in the Young Universe, Lecture Notes in Physics, 1996, 463, 2061996

[22] Girardi, M; Biviano, A; Giuricin, G; Mardirossian, F; Mezzetti, M; 1995, ApJ, 438, 527

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