The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from anisotropic clustering analysis of the Quasar Sample in configuration space between redshift 0.8 and 2.2
Jiamin Hou, Ariel G. Sánchez, Ashley J. Ross, Alex Smith, Richard Neveux, Julian Bautista, Etienne Burtin, Cheng Zhao, Román Scoccimarro, Kyle S. Dawson, Arnaud… 展开作者
Jiamin Hou, Ariel G. Sánchez, Ashley J. Ross, Alex Smith, Richard Neveux, Julian Bautista, Etienne Burtin, Cheng Zhao, Román Scoccimarro, Kyle S. Dawson, Arnaud de Mattia, Axel de la Macorra, Hélion du Mas des Bourboux, Daniel J. Eisenstein, Héctor Gil-Marín, Brad W. Lyke, Faizan G. Mohammad, Eva-Maria Mueller, Will J. Percival, Mariana Vargas Magaña, Graziano Rossi, Pauline Zarrouk, Gong-Bo Zhao, Jonathan Brinkmann, Joel R. Brownstein, Chia-Hsun Chuang, Adam D. Myers, Jeffrey A. Newman, Donald P. Schneider, M. Vivek
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21 pages, 16 figures, matches version accepted by MNRAS
We measure the anisotropic clustering of the quasar sample from Data Release 16 (DR16) of the Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey (eBOSS). A sample of $343,708$ spectroscopically confirmed quasars between redshift $0.8<z<2.2$ are used as tracers of the underlying dark matter field. In comparison with DR14 sample, the final sample doubles the number of objects as well as the survey area. In this paper, we present the analysis in configuration space by measuring the two-point correlation function and decompose using the Legendre polynomials. For the full-shape analysis of the Legendre multipole moments, we measure the BAO distance and the growth rate of the cosmic structure. At an effective redshift of $z_{\rm eff}=1.48$, we measure the comoving angular diameter distance $D_{\rm M}(z_{\rm eff})/r_{\rm drag} = 30.66\pm0.88$, the Hubble distance $D_{\rm H}(z_{\rm eff})/r_{\rm drag} = 13.11\pm0.52$, and the growth rate $fσ_8(z_{\rm eff}) = 0.439\pm0.048$. The accuracy of these measurements is confirmed using an extensive set of mock simulations developed for the quasar sample. The uncertainties on the distance and growth rate measurements have been reduced substantially ($\sim 45\%$ and $\sim30\%$) with respect to the DR14 results. We also perform a BAO-only analysis to cross check the robustness of the methodology of the full-shape analysis. Combining our analysis with the Fourier space analysis, we arrive at $D^{\bf{c}}_{\rm M}(z_{\rm eff})/r_{\rm drag} = 30.22 \pm 0.79$, $D^{\bf{c}}_{\rm H}(z_{\rm eff})/r_{\rm drag} = 13.26 \pm 0.47$, and $fσ_8^{\bf{c}}(z_{\rm eff}) = 0.464 \pm 0.045$.
The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from the anisotropic power spectrum of the Quasar sample between redshift 0.8 and 2.2
The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological implications from multi-tracer BAO analysis with galaxies and voids
我们使用DIVE void finder在SDSS BOSS DR 12和eBOSS DR 16星系样本上构建了宇宙空洞目录，并应用BAO重建，并使用不同类型的星系和相应的空洞进行联合BAO分析。BAO峰值对于所有数据集的星系-星系、星系-空洞和空洞-空洞关联函数都是明显的，包括那些互相关联的亮红色星系和发射线星系样本。两个多示踪剂BAO拟合方案，然后测试，一个结合的星系和空关联函数的权重适用于空隙，和其他使用一个单一的BAO膨胀参数的所有聚类测量不同的示踪剂。这两种方法产生一致的结果与模拟目录，平均约10%的改善的BAO统计不确定性观察到的所有样本相比，从星系单独的结果。通过结合星系和空洞的聚类，SDSS数据中BAO测量的不确定性降低了5%至15%，在有效红移分别为0.38、0.51、0.70、0.77和0.85时，距离$D_{_{\rm V}}(z)$的约束分别为0.9%、0.8%、1.1%、2.3%和2.9%。当与来自SDSS MGS、类星体和Ly $α$样本的BAO测量以及BBN结果相结合时，我们在平坦的$Λ$ CDM框架中获得了$H_0 = 67.58 \pm 0.91\,{\rm km}\,{\rm s}^{-1}\,{\rm Mpc}^{-1}$、$Ω_{\rm m} = 0.290 \pm 0.015$和$Ω_Λh^2 = 0.3241 \pm 0.0079$，其中…
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: tomographic BAO analysis of DR12 combined sample in Fourier space
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: tomographic BAO analysis of DR12 combined sample in configuration space
我们使用从BOSS DR 12的组合样本测量的两点星系相关函数进行层析重子声振荡分析，该组合样本覆盖了$0.2<z<0.75$的红移范围。将样本分成多个重叠的红移切片，提取星系团的红移信息，利用MultiDark-Patchy模拟星表校准的全协方差矩阵，得到了$D_A(z)/r_d$和$H(z)r_d$在9个有效红移处的测量结果。利用重建的星系星表，我们得到了$1.3\%-2.2\%$对$D_A(z)/r_d$和$2.1\%-6.0\%$对$H(z)r_d$的精度。为了量化从断层信息的增益，我们比较宇宙学参数的约束，使用我们的9-bin BAO测量，共识3-bin BAO和RSD测量在三个有效的红移在\citet{Alam2016}，和非断层（1-bin）BAO测量在一个单一的有效红移。将9-bin约束结果与1-bin约束结果进行比较，发现对于状态方程参数$w_{\rm DE}$的Chevallier-Polarski-Linder参数化，可以将暗能量品质因数提高1.24倍。与3-bin约束结果相比，来自9-bin约束的$w_0$和$w_a$的误差略有改善。
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: a tomographic measurement of structure growth and expansion rate from anisotropic galaxy clustering in Fourier space
Clustering in the Simulated H$α$ Galaxy Redshift Survey from Nancy Grace Roman Space Telescope
我们提出了一个现实的2000度$^{2}$ H $α$星系模拟目录与$1<z<2$的南希格雷斯罗马空间望远镜星系红移调查，高纬度光谱调查（HLSS），创建使用Galacticus，半解析星系形成模型，和高分辨率宇宙学N体模拟。星系成团可以通过测量重子声学振荡（BAO）和红移空间畸变（RSD）来探测暗能量和检验引力。使用我们的现实模拟的模拟罗马HLSS数据，协方差矩阵计算使用EZmock创建的一个大的近似模拟集，我们调查的预期精度和准确度的BAO和RSD测量使用相同的分析技术用于分析真实数据。我们发现，在四个红移区间中，仅Roman H $α$星系巡天就可以测量角直径距离，其不确定度为2%，哈勃参数的不确定度为3- 6%，线性增长参数的不确定度为7%.我们现实的预测说明了罗马星系巡天在探测暗能量的性质和测试引力方面的力量。
The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Large-scale Structure Catalogues and Measurement of the isotropic BAO between redshift 0.6 and 1.1 for the Emission Line Galaxy Sample
The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic correlation function between redshifts 0.6 and 1
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: theoretical systematics and Baryon Acoustic Oscillations in the galaxy correlation function
The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: a multi-tracer analysis in Fourier space for measuring the cosmic structure growth and expansion rate
The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the emission line galaxy sample from the anisotropic power spectrum between redshift 0.6 and 1.1
The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic power spectrum between redshifts 0.6 and 1.0
Extensive analysis of reconstruction algorithms for DESI 2024 baryon acoustic oscillations
Yale University（耶鲁大学）；Shanghai Jiao Tong University（上海交通大学）；University of Waterloo（滑铁卢大学）；Steward Observatory, University of Arizona（亚利桑那大学斯图尔德天文台）；Waterloo Centre for Astrophysics, University of Waterloo（滑铁卢大学天体物理中心）；Institute of Cosmology and Gravitation, University of Portsmouth（朴茨茅斯大学宇宙学与引力研究所）；Ohio University（俄亥俄大学）；Institute for Advanced Study（高等研究院）；University of California, Berkeley（加州大学伯克利分校）；IRFU, CEA, Université Paris-Saclay（法国原子能和替代能源委员会法国研究与技术研究所，巴黎萨克雷大学）；Lawrence Berkeley National Laboratory（劳伦斯伯克利国家实验室）
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: RSD measurement from the power spectrum and bispectrum of the DR12 BOSS galaxies
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Observational systematics and baryon acoustic oscillations in the correlation function
我们提出了重子声学振荡（BAO）尺度的测量确定的120万个大质量星系的红移0.2 < z < 0.75分布在9300平方度的集群，量化的红移空间关联函数。为了方便这些测量，我们定义，描述，并激励选择功能的SDSS III重子振荡光谱巡天（BOSS）的最终数据发布（DR 12）的星系。这包括观测足迹，图像质量和银河系消光的掩模，以及考虑调查成像和光谱部分固有的密度关系的权重。我们模拟了模拟星系样本中观察到的系统趋势，并证明它们对重子声学振荡（BAO）尺度测量没有影响，并且对恢复的统计不确定性有轻微的影响。我们在0.2 < z < 0.5，0.5 < z < 0.75和（重叠）0.4 < z < 0.6红移箱中测量横向和径向BAO距离测量。在每个红移箱，我们得到的精度是2.7%或更好的径向距离和1.6%或更好的横向距离。红移仓的组合表示径向距离的1.8%精度和横向距离的1.1%精度。本文是分析BOSS最终星系聚类数据集的一部分。这里提出的测量和可能性与Alam et al.（2016）中的其他测量和可能性相结合，以产生BOSS的最终宇宙学约束。
