Limits on wCDM from the EFTofLSS with the PyBird code

被引：96

作者：

D'Amico, Guido ^{[1
,2
]}

Senatore, Leonardo ^{[3
,4
,5
]}

Zhang, Pierre ^{[6
,7
,8
]}

机构：

[1] Univ Parma, Dept Math Phys & Comp Sci, Parco Area Sci 7-A, I-43124 Parma, Italy

[2] Ist Nazl Fis Nucl, Grp Collegato Parma, Parco Area Sci 7-A, I-43124 Parma, Italy

[3] Stanford Univ, Dept Phys, Stanford Inst Theoret Phys, Stanford, CA 94306 USA

[4] SLAC, Kavli Inst Particle Astrophys & Cosmol, Menlo Pk, CA 94025 USA

[5] Stanford Univ, Menlo Pk, CA 94025 USA

[6] Univ Sci & Technol China, Sch Phys Sci, Dept Astron, Hefei 230026, Anhui, Peoples R China

[7] Univ Sci & Technol China, CAS Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China

[8] Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2021年 / 01期

基金：

美国国家科学基金会;

关键词：

cosmological parameters from LSS; power spectrum; BARYON ACOUSTIC-OSCILLATIONS; GALAXIES;

D O I：

10.1088/1475-7516/2021/01/006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We apply the Effective Field Theory of Large-Scale Structure to analyze the wCDM cosmological model. By using the full shape of the power spectrum and the BAO post-reconstruction measurements from BOSS, the Supernovae from Pantheon, and a prior from BBN, we set the competitive CMB-independent limit w = -1.0461(-0.052)(+0.055) at 68% C.L. After adding the Planck CMB data, we find w = -1.023(-0.030)(+0.033) at 68% C.L. Our results are obtained using PyBird, a new, fast Python-based code which we make publicly available.

引用

页数：30

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