The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 9 Spectroscopic Galaxy Sample
Lauren Anderson, Eric Aubourg, Stephen Bailey, Dmitry Bizyaev, Michael Blanton, Adam S. Bolton, J. Brinkmann, Joel R. Brownstein, Angela Burden, Antonio J. Cues… 展开作者
Lauren Anderson, Eric Aubourg, Stephen Bailey, Dmitry Bizyaev, Michael Blanton, Adam S. Bolton, J. Brinkmann, Joel R. Brownstein, Angela Burden, Antonio J. Cuesta, Luiz N. A. da Costa, Kyle S. Dawson, Roland de Putter, Daniel J. Eisenstein, James E. Gunn, Hong Guo, Jean-Christophe Hamilton, Paul Harding, Shirley Ho, Klaus Honscheid, Eyal Kazin, D. Kirkby, Jean-Paul Kneib, Antione Labatie, Craig Loomis, Robert H. Lupton, Elena Malanushenko, Viktor Malanushenko, Rachel Mandelbaum, Marc Manera, Claudia Maraston, Cameron K. McBride, Kushal T. Mehta, Olga Mena, Francesco Montesano, Demetri Muna, Robert C. Nichol, Sebastian E. Nuza, Matthew D. Olmstead, Daniel Oravetz, Nikhil Padmanabhan, Nathalie Palanque-Delabrouille, Kaike Pan, John Parejko, Isabelle Paris, Will J. Percival, Patrick Petitjean, Francisco Prada, Beth Reid, Natalie A. Roe, Ashley J. Ross, Nicholas P. Ross, Lado Samushia, Ariel G. Sanchez, David J. Schlegel Donald P. Schneider, Claudia G. Scoccola, Hee-Jong Seo, Erin S. Sheldon, Audrey Simmons, Ramin A. Skibba, Michael A. Strauss, Molly E. C. Swanson, Daniel Thomas, Jeremy L. Tinker, Rita Tojeiro, Mariana Vargas Magana, Licia Verde, Christian Wagner, David A. Wake, Benjamin A. Weaver, David H. Weinberg, Martin White, Xiaoying Xu, Christophe Yeche, Idit Zehavi, Gong-Bo Zhao
We present measurements of galaxy clustering from the Baryon Oscillation Spectroscopic Survey (BOSS), which is part of the Sloan Digital Sky Survey III (SDSS-III). These use the Data Release 9 (DR9) CMASS sample, which contains 264,283 massive galaxies covering 3275 square degrees with an effective redshift z=0.57 and redshift range 0.43 < z < 0.7. Assuming a concordance Lambda-CDM cosmological model, this sample covers an effective volume of 2.2 Gpc^3, and represents the largest sample of the Universe ever surveyed at this density, n = 3 x 10^-4 h^-3 Mpc^3. We measure the angle-averaged galaxy correlation function and power spectrum, including density-field reconstruction of the baryon acoustic oscillation (BAO) feature. The acoustic features are detected at a significance of 5σin both the correlation function and power spectrum. Combining with the SDSS-II Luminous Red Galaxy Sample, the detection significance increases to 6.7σ. Fitting for the position of the acoustic features measures the distance to z=0.57 relative to the sound horizon DV /rs = 13.67 +/- 0.22 at z=0.57. Assuming a fiducial sound horizon of 153.19 Mpc, which matches cosmic microwave background constraints, this corresponds to a distance DV(z=0.57) = 2094 +/- 34 Mpc. At 1.7 per cent, this is the most precise distance constraint ever obtained from a galaxy survey. We place this result alongside previous BAO measurements in a cosmological distance ladder and find excellent agreement with the current supernova measurements. We use these distance measurements to constrain various cosmological models, finding continuing support for a flat Universe with a cosmological constant.
The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: Anisotropic Baryon Acoustic Oscillations measurements in Fourier-space with optimal redshift weights
利用扩展的重子振荡光谱巡天数据Release 14类星体样品,测量了具有最佳红移权的各向异性和各向同性的重子声学振荡(BAO)。应用红移权重将对BAO膨胀参数$α(z_{\rm eff})$的约束提高了17\ %。我们重建了$0.8<z<2.2$红移范围内BAO距离指标的演化历史。本文是分析eBOSS DR 14类星体样本的一组中的一部分。
Comments on arXiv:1310.5067: "A response to `A self-consistent public catalogue of voids and superclusters in the SDSS Data Release 7 galaxy surveys' "
A response to arXiv:1310.2791: A self-consistent public catalogue of voids and superclusters in the SDSS Data Release 7 galaxy surveys
最近,Nadathur和Hotchkiss(2013)提交了一篇论文,讨论了一个新的宇宙空洞目录。本文包括Sutter et al.(2012)中描述的关于空目录的声明。在本说明中,我们回应了这些说法,澄清了Sutter等人(2012)的文本与最新版本的目录之间的一些差异,并对我们的目录与Nadathur & Hotchkiss(2013)的目录之间的差异提供了一些评论。我们目录的所有更新和文档都可以在http://www.cosmicvoids.net上找到。
Large scale distribution of mass versus light from Baryon Acoustic Oscillations: Measurement in the final SDSS-III BOSS Data Release 12
早期宇宙中的重子声学振荡(BAO)被预测会在总质量与发光物质的相对聚集上留下一个尚未被探测到的特征。这个特征是对重子和暗物质的相对大尺度聚集的调制,它提供了一个新的角度来比较光与质量的大尺度分布。对这种效应的探测将为标准宇宙学范式提供重要的确认,并限制暗物质的替代品以及补偿等曲率扰动(CIP)等非标准波动。在SDSS-III BOSS Data Release 10 CMASS样本中测量这种效应的第一次尝试仍然没有结果,但允许开发一种方法,我们在这里详细介绍并用于进行第二次观测搜索。当使用与我们先前研究相同的模型并在模型中包括CIP时,DR 12数据与零检测一致,这导致与先前使用DR 10数据测量的强有力证据的张力。当我们使用一个更现实的模型,考虑到我们对调查通量限制的了解时,这种紧张仍然存在,因为数据然后特权为零效应。在没有CIP的情况下,我们得到了一个零检测一致的情况下的效果和幅度预测在以前的理论研究。这表明需要更准确的数据来证明或反驳理论预测。
Smoothing the redshift distributions of random samples for the baryon acoustic oscillations : applications to the SDSS-III BOSS DR12 and QPM mock samples
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Measuring D_A and H at z=0.57 from the Baryon Acoustic Peak in the Data Release 9 Spectroscopic Galaxy Sample
The SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations at redshift of 0.72 with the DR14 Luminous Red Galaxy Sample
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。
The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: Measuring the anisotropic Baryon Acoustic Oscillations with redshift weights
The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey quasar sample: Testing observational systematics on the Baryon Acoustic Oscillation measurement
Measuring the cosmic homogeneity scale with SDSS-IV DR16 Quasars
我们报告的测量尺度的宇宙均匀性($r_{h}$)使用最近发布的类星体样本的第十六次数据发布的斯隆数字巡天(SDSS-IV DR 16)。我们利用分维$D_2$对位于红移区间$2.2 < z < 3.2$内的2个红移仓进行了分析。通过采用通常的假设,即当$D_2 \sim 2.97$,即在$D_2=3$的1%以内时得到$r_{h}$,我们发现宇宙均匀性尺度随红移有减小的趋势,并且与$Λ$ CDM预测很好地吻合。我们的研究结果证实了标准宇宙学模型的基本假设所预测的类星体空间分布的均匀性尺度的存在。
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: galaxy clustering measurements in the low redshift sample of Data Release 11
Fitting Methods for Baryon Acoustic Oscillations in the Lyman-α Forest Fluctuations in BOSS Data Release 9
描述了分析莱曼-α森林涨落和测量重子声学振荡(BAO)参数的拟合方法。我们将我们的方法应用于BOSS Data Release 9。我们的方法是基于物理坐标空间中的三维关联函数模型,并包括红移空间失真,各向异性非线性展宽,和宽带失真的影响。我们允许独立的尺度因子沿和垂直的视线,以尽量减少对我们假设的基准宇宙学的依赖,并获得单独的测量的BAO角和相对速度尺度。我们的拟合软件和复制我们的主要BOSS数据版本9结果所需的输入文件是公开的。
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 10 and 11 galaxy samples
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the correlation function of LOWZ and CMASS galaxies in Data Release 12
我们目前的距离尺度测量的重子声振荡信号的CMASS和LOWZ样品的重子振荡光谱巡天(BOSS)的数据发布12。探测的总量为14.5 Gpc $^3$,比第11版数据增加10%。从球平均的关联函数的分析,我们推断到$z=0.57$的距离为$D_V(z)r^{\rm fid}_{\rm d}/r_ {\rm d}=2028\pm21$ Mpc,到$z=0.32$的距离为$D_V(z)r^{\rm fid}_{\rm d}/r_{\rm d}=1264\pm22$ Mpc,假设宇宙学中$r^{\rm fid}_{\rm d}=147.10$ Mpc。从各向异性分析,我们发现一个角直径距离$z=0.57$的$D_{\rm A}(z)r^{\rm fid}_{\rm d}/r_{\rm d}=1401\pm21$ Mpc和距离$z=0.32$的$981\pm20$ Mpc,分别为1.5%和2.0%的测量。$z=0.57$的哈勃参数为$H(z)r_{\rm d}/r^{\rm fid}_{\rm d}=100.3\pm3.7$ km s $^{-1}$ Mpc $^{-1}$,$z=0.32$的哈勃参数值为$79.2\pm5.6$ km s $^{-1}$ Mpc $^{-1}$,分别为3.7%和7.1%。这些宇宙距离尺度约束与最近的普朗克2015结果发布的宇宙学参数的$Λ$ CDM模型非常一…
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 clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological implications of the full shape of the clustering wedges in the data release 10 and 11 galaxy samples
Detection significance of Baryon Acoustic Oscillations peaks in galaxy and quasar clustering
我们比较我们的分析的重子声学振荡(BAO)功能的相关函数的SDSS BOSS DR 12 LOWZ和CMASS星系样本的arXiv:1509.06371 v2的结果。使用数据的子集,我们获得了相关函数的误差的经验估计,这与arXiv:1509.06371v2的模拟误差一致。我们发现,BAO检测的显著性是对拟合范围的选择最敏感的量,随着拟合范围的减小,CMASS值从$8.0σ$减小到$5.3σ$。尽管我们对$D_V(z)$的测量结果与arXiv:1509.06371 v2的测量结果一致,但我们注意到它们的CMASS $8.0σ$(LOWZ $4.0σ$)检测显著性仅在与对角协方差项拟合时降低至$4.7σ$($2.8σ$)。我们通过拟合2QDESp,SDSS DR5 EQUORM,2QZ和2SLAQ类星体相关函数的加权平均值,将我们的BAO分析扩展到更高的红移,与eBOSS DR 14实现的$3.9\%$相比,获得了$7.6\%$测量。与LRG调查不同,类星体相关函数的较大误差意味着滋扰参数(占尺度依赖的聚类)在提供良好的拟合基准$Λ$ CDM模型中的作用较小。再次仅使用arXiv:1705.06373 v2的误差条并忽略任何非对角协方差矩阵项,我们发现eBOSS峰值显著性从2.8降低到$1.4σ$。我们的结论是,对于LRG和类星体,报告的BAO峰值的意义,从SDSS调查敏感地依赖于在…