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相关论文: Tests of redshift-space distortions models in conf…

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We present a measurement of the linear growth rate of structure, \textit{f} from the Sloan Digital Sky Survey III (SDSS III) Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 12 (DR12) using Convolution Lagrangian Perturbation…

The growth of large-scale structure, as revealed in the anisotropic of clustering of galaxies in the low redshift Universe, provides a stringent test of our cosmological model. The strongest current constraints come from the BOSS and eBOSS…

宇宙学与河外天体物理 · 物理学 2023-06-14 Mark Maus , Shi-Fan Chen , Martin White

We explore the bluer star-forming population of the Sloan Digital Sky Survey (SDSS) III/BOSS CMASS DR11 galaxies at $z>0.55$ to quantify their differences, in terms of redshift-space distortions and large-scale bias, with respect to the…

In this work, we test a framework to perform the analysis of redshift-space distortions simultaneously in configuration and Fourier space. We test our methods with the AbacusSummit suite of N-body simulations as well as a more numerous set…

宇宙学与河外天体物理 · 物理学 2026-02-25 Vincenzo Aronica , Julian E. Bautista , Arnaud de Mattia , Hector Gil-Marín

We investigate the impact of different redshift distributions of random samples on the baryon acoustic oscillations (BAO) measurements of $D_V(z)r_\mathrm{d}^\mathrm{fid}/r_\mathrm{d}$ from the two-point correlation functions (2PCF) of…

宇宙学与河外天体物理 · 物理学 2017-10-11 Shao-Jiang Wang , Qi Guo , Rong-Gen Cai

We analyze the clustering of large scale structure in the Universe in a model independent method, accounting for anisotropic effects along and transverse to the line of sight. The Baryon Oscillation Spectroscopy Survey Data Release 11…

宇宙学与河外天体物理 · 物理学 2015-05-01 Yong-Seon Song , Cristiano G. Sabiu , Teppei Okumura , Minji Oh , Eric V. Linder

Future galaxy surveys hope to distinguish between the dark energy and modified gravity scenarios for the accelerating expansion of the Universe using the distortion of clustering in redshift space. The aim is to model the form and size of…

宇宙学与河外天体物理 · 物理学 2011-01-06 Elise Jennings , Carlton M. Baugh , Silvia Pascoli

We develop a series of N-body data challenges, functional to the final analysis of the extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 16 (DR16) galaxy sample. The challenges are primarily based on high-fidelity…

The growth rate and expansion history of the Universe can be measured from large galaxy redshift surveys using the Alcock-Paczynski effect. We validate the Redshift Space Distortion models used in the final analysis of the Sloan Digital Sky…

We present a new, model-independent measurement of the clustering amplitude of galaxies and the growth of cosmic large-scale structures from the Baryon Oscillation Spectroscopic Survey (BOSS) 12th data release (DR12). This is achieved by…

宇宙学与河外天体物理 · 物理学 2023-09-14 Konstantinos Tanidis , Stefano Camera

We present measurements of the anisotropic cross-correlation of galaxies and cosmic voids in data from the Sloan Digital Sky Survey Main Galaxy Sample (MGS), Baryon Oscillation Spectroscopic Survey (BOSS) and extended BOSS (eBOSS) luminous…

宇宙学与河外天体物理 · 物理学 2022-10-11 Alex Woodfinden , Seshadri Nadathur , Will J. Percival , Slađana Radinović , Elena Massara , Hans A. Winther

We report novel cosmological constraints obtained from cosmic voids in the final BOSS DR12 dataset. They arise from the joint analysis of geometric and dynamic distortions of average void shapes (i.e., the stacked void-galaxy…

宇宙学与河外天体物理 · 物理学 2020-12-17 Nico Hamaus , Alice Pisani , Jin-Ah Choi , Guilhem Lavaux , Benjamin D. Wandelt , Jochen Weller

We investigate the anisotropic clustering of the Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 12 (DR12) sample, which consists of $1\,198\,006$ galaxies in the redshift range $0.2 < z < 0.75$ and a sky coverage of…

We present a measurement of two-dimensional (2D) redshift-space power spectrum for the Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 11 CMASS galaxies in the North Galactic Cap (NGC) based on the method developed by Jing &…

宇宙学与河外天体物理 · 物理学 2017-10-11 Zhigang Li , Y. P. Jing , Pengjie Zhang , Dalong Cheng

We conducted a review of the fundamental aspects of describing and detecting the Baryon Acoustic Oscillation (BAO) feature in galaxy surveys, emphasizing the optimal tools for constraining this probe based on the type of observation.…

宇宙学与河外天体物理 · 物理学 2024-12-06 Paula S. Ferreira , Ribamar R. R. Reis

We analyze the science reach of a next generation galaxy redshift survey such as BigBOSS to fit simultaneously for time varying dark energy equation of state and time- and scale-dependent gravity. The simultaneous fit avoids potential bias…

宇宙学与河外天体物理 · 物理学 2013-02-06 Scott F. Daniel , Eric V. Linder
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