The BINGO Project I: Baryon Acoustic Oscillations from Integrated Neutral Gas Observations
Elcio Abdalla, Elisa G. M. Ferreira, Ricardo G. Landim, Andre A. Costa, Karin S. F. Fornazier, Filipe B. Abdalla, Luciano Barosi, Francisco A. Brito, Amilcar R.… 展开作者
Elcio Abdalla, Elisa G. M. Ferreira, Ricardo G. Landim, Andre A. Costa, Karin S. F. Fornazier, Filipe B. Abdalla, Luciano Barosi, Francisco A. Brito, Amilcar R. Queiroz, Thyrso Villela, Bin Wang, Carlos A. Wuensche, Alessandro Marins, Camila P. Novaes, Vincenzo Liccardo, Chenxi Shan, Jiajun Zhang, Zhongli Zhang, Zhenghao Zhu, Ian Browne, Jacques Delabrouille, Larissa Santos, Marcelo V. dos Santos, Haiguang Xu, Sonia Anton, Richard Battye, Tianyue Chen, Clive Dickinson, Yin-Zhe Ma, Bruno Maffei, Eduardo J. de Mericia, Pablo Motta, Carlos H. N. Otobone, Michael W. Peel, Sambit Roychowdhury, Mathieu Remazeilles, Rafael M. Ribeiro, Yu Sang, Joao R. L. Santos, Juliana F. R. dos Santos, Gustavo B. Silva, Frederico Vieira, Jordany Vieira, Linfeng Xiao, Xue Zhang, Yongkai Zhu
Observations of the redshifted 21-cm line of neutral hydrogen (HI) are a new and powerful window of observation that offers us the possibility to map the spatial distribution of cosmic HI and learn about cosmology. BINGO (Baryon Acoustic Oscillations [BAO] from Integrated Neutral Gas Observations) is a new unique radio telescope designed to be one of the first to probe BAO at radio frequencies. BINGO has two science goals: cosmology and astrophysics. Cosmology is the main science goal and the driver for BINGO's design and strategy. The key of BINGO is to detect the low redshift BAO to put strong constraints in the dark sector models. Given the versatility of the BINGO telescope, a secondary goal is astrophysics, where BINGO can help discover and study Fast Radio Bursts (FRB) and other transients, Galactic and extragalactic science. In this paper, we introduce the latest progress of the BINGO project, its science goals, describing the scientific potential of the project in each science and the new developments obtained by the collaboration. We introduce the BINGO project and its science goals and give a general summary of recent developments in construction, science potential and pipeline development obtained by the BINGO collaboration in the past few years. We show that BINGO will be able to obtain competitive constraints for the dark sector, and also that will allow for the discovery of several FRBs in the southern hemisphere. The capacity of BINGO in obtaining information from 21-cm is also tested in the pipeline introduced here. There is still no measurement of the BAO in radio, and studying cosmology in this new window of observations is one of the most promising advances in the field. The BINGO project is a radio telescope that has the goal to be one of the first to perform this measurement and it is currently being built in the northeast of Brazil. (Abridged)
The BINGO project X. Cosmological parameter constraints from HI Intensity Mapping lognormal simulations
Universidade de São Paulo（圣保罗大学）；University of Science and Technology of China（中国科学技术大学）；ASTRON, the Netherlands Institute for Radio Astronomy（荷兰射电天文研究所）；Rhodes University（罗德斯大学）；Instituto Nacional de Pesquisas Espaciais（国家空间研究所）；Universidade Estadual da Paraíba（帕拉伊巴州立大学）；Universidade Federal da Paraíba（帕拉伊巴联邦大学）
Baryon Acoustic Oscillations from Integrated Neutral Gas Observations: an instrument to observe the 21cm hydrogen line in the redshift range 0.13 $<$ z $<$ 0.45 -- status update
BINGO（BAO from Integrated Neutral Gas Observations）是一个独特的射电望远镜，旨在绘制宇宙学距离上中性氢的强度分布，首次探测到980 MHz - 1260 MHz频段的重子声学振荡（BAO），对应于红移范围$0.127 < z < 0.449$。BAO是宇宙学参数最强大的探测器之一，BINGO的设计目的是探测BAO信号，使其能够对暗能量的状态方程施加新的约束。该望远镜将在巴西帕拉伊巴建造，由两个$\thicksim$ 40米反射镜、一个由28个喇叭组成的喇叭天线阵列组成，没有移动部件，作为漂移扫描仪器工作。它将覆盖以$\sim δ=-15^{\circ}$为中心的$15^{\circ}$十度带，映射天空中的$\sim 5400$平方度。BINGO联盟由圣保罗大学牵头，国家空间研究所和Campina Grande联邦大学（巴西）共同领导。望远镜子系统已经完成了制造和测试，天线和结构制造预计将于2020年底开始，道路和地形准备也将开始。
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。
Exploiting the shift of baryonic acoustic oscillations as a dynamical probe for dark interactions
星系和星系团的关联函数中的重子声峰为探测宇宙的时空几何提供了一把标准标尺，共同制约着角直径距离和哈勃膨胀率。此外，非线性效应可以系统地移动峰值位置，使我们有机会将这种聚集特征也作为动态探测来利用。我们调查的可能性，检测相互作用的黑暗部门通过准确测定重子声学标度。利用从CoDECS模拟中提取的公共晕目录-迄今为止最大的N体相互作用暗能量模型模拟套件-我们确定了重子尺度的位置，该位置适合带滤波关联函数，专门用于放大声音视界处的信号。在0 < z < 2的范围内，我们分析了由于非线性动力学、红移空间失真和高斯红移误差引起的位移。由于暗能量和暗物质之间的耦合以一种特殊的方式影响晕的成团特性，特别是重子声振荡的振幅和位置，重子峰位置的宇宙演化可能提供一种直接的方法来区分相互作用的暗能量模型和标准的ΛCDM框架。为了最大限度地提高重子峰作为动力学探测器的效率，必须在红移空间中测量关联函数，因为在红移空间中，由于非线性引起的重子声学位移被放大。光谱星系巡天的典型红移误差不会显著影响这些结果。
The Effect of Interstellar Absorption on Measurements of the Baryon Acoustic Peak in the Lyman-α Forest
近年来，人们利用氢Lyman-α森林的自相关性，利用BOSS巡天的数万条类星体谱，观测到了红移2 < z < 3.5的重子声峰。然而，银河系的星际介质会将吸收线引入任何河外源的光谱中。这些谱线虽然很弱，在单一BOSS光谱中无法检测到，但可能会使宇宙学信号产生偏差。为了检验这一点，我们通过叠加超过一百万个星系和类星体的光谱来生成吸收线图。我们发现，系统介绍太小，影响目前的重子声学峰值的准确性，但可能是相关的未来调查，如暗能量光谱仪（DESI）。我们概述了一种方法来解释这与未来的数据集。
Baryon Acoustic Oscillations and the Hubble Constant: Past, Present and Future
我们利用大爆炸核合成（BBN）的重子声学振荡（BAO）和重子密度测量研究了哈勃常数（$H_0$）的约束。我们首先调查星系BAO测量和那些使用莱曼- $α$森林，贝叶斯框架内的紧张局势。使用eBOSS DR 14的最新结果，我们发现，假设平坦的$Λ$ CDM，该张力的概率为$\simeq6.3\%$。我们测量$H_0 = 67.6\pm1.1$ km s $^{-1}$ Mpc $^{-1}$，与一个弱的依赖于先前使用的BBN，与普朗克宇宙微波背景（CMB）的结果，并在强张力与距离阶梯的结果。最后，我们预测了未来的BAO $+$ BBN测量的$H_0$，使用暗能量光谱仪（DESI）。我们发现，BBN之前的选择将有显着的影响时，考虑未来的BAO测量DESI。
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
