Combination of cluster number counts and two-point correlations: validation on mock Dark Energy Survey

被引：13

作者：

To, Chun-Hao ^{[1
,2
,3
]}

Krause, Elisabeth ^{[4
,5
]}

Rozo, Eduardo ^{[5
]}

Wu, Hao-Yi ^{[6
,7
]}

Gruen, Daniel ^{[2
,3
]}

DeRose, Joseph ^{[8
,9
]}

Rykoff, Eli ^{[2
,3
]}

Wechsler, Risa H. ^{[1
,2
,3
]}

Becker, Matthew ^{[10
]}

Costanzi, Matteo ^{[11
,12
]}

Eifler, Tim ^{[4
]}

Pereira, Maria Elidaiana da Silva ^{[13
]}

Kokron, Nickolas ^{[1
,2
,3
]}

机构：

[1] Stanford Univ, Dept Phys, 382 Via Pueblo Mall, Stanford, CA 94305 USA

[2] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, POB 2450, Stanford, CA 94305 USA

[3] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

[4] Univ Arizona, Steward Observ, Dept Astron, 933 North Cherry Ave, Tucson, AZ 85721 USA

[5] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[6] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA

[7] Boise State Univ, Dept Phys, Boise, ID 83725 USA

[8] Univ Calif Berkeley, Dept Astron, 501 Campbell Hall, Berkeley, CA 94720 USA

[9] Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA

[10] Argonne Natl Lab, 9700 South Cass Ave, Lemont, IL 60439 USA

[11] INAF Osservatorio Astron Trieste, Via GB Tiepolo 11, I-34143 Trieste, Italy

[12] Inst Fundamental Phys Universe, Via Beirut 2, I-34014 Trieste, Italy

[13] Brandeis Univ, Phys Dept, 415 South St, Waltham, MA 02453 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2021年 / 502卷 / 03期

基金：

欧洲研究理事会; 美国国家科学基金会; 英国科学技术设施理事会;

关键词：

cosmological parameters; cosmology: theory; large-scale structure of Universe; 1 RESULTS CALIBRATION; REDSHIFT DISTRIBUTIONS; SDSS; MODEL; DES; DEPENDENCE; COSMOLOGY; GALAXIES; BIAS;

D O I：

10.1093/mnras/stab239

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a method of combining cluster abundances and large-scale two-point correlations, namely galaxy clustering, galaxy-cluster cross-correlations, cluster autocorrelations, and cluster lensing. This data vector yields comparable cosmological constraints to traditional analyses that rely on small-scale cluster lensing for mass calibration. We use cosmological survey simulations designed to resemble the Dark Energy Survey Year 1 (DES-Y1) data to validate the analytical covariance matrix and the parameter inferences. The posterior distribution from the analysis of simulations is statistically consistent with the absence of systematic biases detectable at the precision of the DES-Y1 experiment. We compare the chi(2) values in simulations to their expectation and find no significant difference. The robustness of our results against a variety of systematic effects is verified using a simulated likelihood analysis of DES-Y1-like data vectors. This work presents the first-ever end-to-end validation of a cluster abundance cosmological analysis on galaxy catalogue level simulations.

引用

页码：4093 / 4111

页数：19

共 12 条

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