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arXiv 1303.2622astro-ph.CO
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VIMOS公开河外红移巡天(VIPERS)。第一次数据发布中z=0.8时的星系团和红移空间扭曲

The VIMOS Public Extragalactic Redshift Survey (VIPERS). Galaxy clustering and redshift-space distortions at z=0.8 in the first data release

S. de la Torre, L. Guzzo, J. A. Peacock, E. Branchini, A. Iovino, B. R. Granett, U. Abbas, C. Adami, S. Arnouts, J. Bel, M. Bolzonella, D. Bottini, A. Cappi, J.… 展开作者

S. de la Torre, L. Guzzo, J. A. Peacock, E. Branchini, A. Iovino, B. R. Granett, U. Abbas, C. Adami, S. Arnouts, J. Bel, M. Bolzonella, D. Bottini, A. Cappi, J. Coupon, O. Cucciati, I. Davidzon, G. De Lucia, A. Fritz, P. Franzetti, M. Fumana, B. Garilli, O. Ilbert, J. Krywult, V. Le Brun, O. Le Fevre, D. Maccagni, K. Malek, F. Marulli, H. J. McCracken, L. Moscardini, L. Paioro, W. J. Percival, M. Polletta, A. Pollo, H. Schlagenhaufer, M. Scodeggio, L. A. M. Tasca, R. Tojeiro, D. Vergani, A. Zanichelli, A. Burden, C. Di Porto, A. Marchetti, C. Marinoni, Y. Mellier, P. Monaco, R. C. Nichol, S. Phleps, M. Wolk, G. Zamorani

摘要:

我们在本文中提出的一般真实和红移空间星系团的性质,测量的第一次数据发布的VIPERS调查。VIPERS是一个大型红移巡天,旨在探测遥远的宇宙及其0.5 < z < 1.2的大尺度结构。我们在此分析中描述了样本的全球属性,并讨论了调查的完整性和相关的校正。这个样本使我们能够以前所未有的精度测量星系团的红移。从星系团的红移空间畸变中,我们首次测量了z = 0.8时的结构增长率:fσ_8 = 0.47 +/-0.08。这与基于爱因斯坦引力的标准宇宙学模型的预测完全一致,尽管这种测量本身并不能区分不同的引力模型。

英文摘要:

We present in this paper the general real- and redshift-space clustering properties of galaxies as measured in the first data release of the VIPERS survey. VIPERS is a large redshift survey designed to probe the distant Universe and its large-scale structure at 0.5 < z < 1.2. We describe in this analysis the global properties of the sample and discuss the survey completeness and associated corrections. This sample allows us to measure the galaxy clustering with an unprecedented accuracy at these redshifts. From the redshift-space distortions observed in the galaxy clustering pattern we provide a first measurement of the growth rate of structure at z = 0.8: fσ_8 = 0.47 +/- 0.08. This is completely consistent with the predictions of standard cosmological models based on Einstein gravity, although this measurement alone does not discriminate between different gravity models.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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