The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmic flows and cosmic web from luminous red galaxies-猫眼课题宝

DOI：

10.1093/mnras/stx178

发表时间：

2016-05

期刊：

Monthly Notices of the Royal Astronomical Society

影响因子：

4.8

通讯作者：

中科院分区：

物理与天体物理2区

文献类型：

作者：

M. Ata;F. Kitaura;C. Chuang;S. Rodr'iguez-Torres;R. Angulo;S. Ferraro;H. Gil-Mar'in;P. Mcdonald;C. H. Monteagudo;V. Muller;G. Yepes;Mathieu Autefage;Falk Baumgarten;F. Beutler;J. Brownstein;A. Burden;D. Eisenstein;Hong Guo;S. Ho;C. McBride;M. Neyrinck;M. Olmstead;N. Padmanabhan;W. Percival;F. Prada;G. Rossi;Ariel G. S'anchez;David Schlege;D. Schneider;H. Seo;A. Streblyanska;J. Tinker;R. Tojeiro;M. Vargas-Magaña

作者姓名：Ata，M; Kitaura，FS; Chuang，CH; Rodriguez-Torres，S; Angulo，RE; Ferraro，S; Gil-Marin，H; McDonald，P; Monteagudo，CH; Muller，V;耶佩斯，G; Autefage，M; Baumgarten，F; Beutler，F; Brownstein，JR;负荷，A;爱森斯坦，DJ; Guo，H; Ho，S; McBride，C; Neyrinck，M; Olmstead，MD; Padmanabhan，N; Percival，WJ; Prada，F; Rossi，G;桑切斯，AG; Schlegel，D;施耐德，DP; Seo，HJ; Streblyanska，A; Tinker，J; Tojeiro，R;巴尔加斯-马加纳湾|摘要：© 2017作者。我们提出了一个贝叶斯相空间重建的宇宙大尺度物质密度和速度场的斯隆数字巡天III重子振荡光谱巡天数据发布12 CMASS星系聚类目录。我们依赖于一个给定的冷暗物质宇宙学，网格分辨率在6-10 h-1 Mpc的范围内，和一个对数正态泊松模型与红移相关的非线性偏差。偏置参数来自数据和一般重整化微扰理论方法。我们使用组合吉布斯和哈密顿采样，在ARGO代码中实现，迭代重建暗物质密度场和单个星系的相干特有的速度，从而校正相干红移空间失真。我们的测试依赖于准确的N体为基础的模拟星系目录显示无偏的真实的空间功率谱的非线性密度场的k ~ 0.2 h Mpc-1，和消失的四极下降到r ~ 20 h-1 Mpc。我们还证明了非线性宇宙网可以从潮汐场张量的基础上重建的密度场的高斯分量。我们发现，重建的速度有一个统计相关系数相比，每个单独的光锥模拟星系的r ~ 0.68，包括约10%的卫星星系维里运动（约r = 0.75没有卫星）的真实速度。速度发散的功率谱与理论预测一致，k ~ 0.2 h Mpc-1。这项工作将是特别有用的，以改善，例如，重子声振荡重建，运动学Sunyaev- Zeldovich，集成的萨克斯-沃尔夫测量或环境研究。

Author(s): Ata, M; Kitaura, FS; Chuang, CH; Rodriguez-Torres, S; Angulo, RE; Ferraro, S; Gil-Marin, H; McDonald, P; Monteagudo, CH; Muller, V; Yepes, G; Autefage, M; Baumgarten, F; Beutler, F; Brownstein, JR; Burden, A; Eisenstein, DJ; Guo, H; Ho, S; McBride, C; Neyrinck, M; Olmstead, MD; Padmanabhan, N; Percival, WJ; Prada, F; Rossi, G; Sanchez, AG; Schlegel, D; Schneider, DP; Seo, HJ; Streblyanska, A; Tinker, J; Tojeiro, R; Vargas-Magana, M | Abstract: © 2017 The Authors. We present a Bayesian phase-space reconstruction of the cosmic large-scale matter density and velocity fields from the Sloan Digital Sky Survey-III Baryon Oscillations Spectroscopic Survey Data Release 12 CMASS galaxy clustering catalogue. We rely on a given ∧ cold dark matter cosmology, a mesh resolution in the range of 6-10 h-1 Mpc, and a lognormal-Poisson model with a redshift-dependent non-linear bias. The bias parameters are derived from the data and a general renormalized perturbation theory approach. We use combined Gibbs and Hamiltonian sampling, implemented in the ARGO code, to iteratively reconstruct the darkmatter density field and the coherent peculiar velocities of individual galaxies, correcting hereby for coherent redshift space distortions. Our tests relying on accurate N-body-based mock galaxy catalogues show unbiased real space power spectra of the non-linear density field up to k ~ 0.2 h Mpc-1, and vanishing quadrupoles down to r ~ 20 h-1 Mpc. We also demonstrate that the non-linear cosmic web can be obtained from the tidal field tensor based on the Gaussian component of the reconstructed density field. We find that the reconstructed velocities have a statistical correlation coefficient compared to the true velocities of each individual lightcone mock galaxy of r ~ 0.68 including about 10 per cent of satellite galaxies with virial motions (about r = 0.75 without satellites). The power spectra of the velocity divergence agree well with theoretical predictions up to k ~ 0.2 h Mpc-1. This work will be especially useful to improve, for example, baryon acoustic oscillation reconstructions, kinematic Sunyaev- Zeldovich, integrated Sachs-Wolfe measurements or environmental studies.

The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmic flows and cosmic web from luminous red galaxies

文献摘要

被引文献

相似文献