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Consistent lensing and clustering in a low-S8 Universe with BOSS, DES Year 3, HSC Year 1, and KiDS-1000

Amon, A; Robertson, N C; Miyatake, † H; Heymans, C; White, M; Derose, J; Yuan, S; Wechsler, R H; Varga, T N; Bocquet, S; Dvornik, A; More, S; Ross, A J; Hoekstra, H; Alarcon, A; Asgari, M; Blazek, J; Campos, A; Chen, R; Choi, A; Crocce, M; Diehl, H T; Doux, C; Eckert, K; Elvin-Poole, J; Everett, S; Ferté, A; Gatti, M; Giannini, G; Gruen, D; Gruendl, R A; Hartley, W G; Herner, K; Hildebrandt, H; Wright, A H; Yin, B; Aguena, M; Allam, S; Annis, J; Bacon, D; Bilicki, M; Brooks, D; Burke, D L; Mohr, J J; Morgan, R; Muir, J; Paz-Chinchón, F; Pieres, A; Malagón, A A Plazas; Porredon, A; Rodriguez-Monroy, M; Roodman, A; Sanchez, E; Serrano, S; Shan, H; Suchyta, E; Swanson, M E C; Tarle, G; Thomas, D; To, C; Zhang, Y

Authors

A Amon

N C Robertson

† H Miyatake

C Heymans

M White

J Derose

S Yuan

R H Wechsler

T N Varga

S Bocquet

A Dvornik

S More

A J Ross

H Hoekstra

A Alarcon

M Asgari

J Blazek

A Campos

R Chen

A Choi

M Crocce

H T Diehl

C Doux

K Eckert

J Elvin-Poole

S Everett

A Ferté

M Gatti

G Giannini

D Gruen

R A Gruendl

W G Hartley

K Herner

H Hildebrandt

A H Wright

B Yin

M Aguena

S Allam

J Annis

D Bacon

M Bilicki

D Brooks

D L Burke

J J Mohr

R Morgan

J Muir

F Paz-Chinchón

A Pieres

A A Plazas Malagón

A Porredon

M Rodriguez-Monroy

A Roodman

E Sanchez

S Serrano

H Shan

E Suchyta

M E C Swanson

G Tarle

D Thomas

C To

Y Zhang



Abstract

We evaluate the consistency between lensing and clustering based on measurements from BOSS combined with galaxy-galaxy lensing from DES-Y3, HSC-Y1, KiDS-1000. We find good agreement between these lensing datasets. We model the observations using the Dark Emulator and fit the data at two fixed cosmologies: Planck (S 8 = 0.83), and a Lensing cosmology (S 8 = 0.76). For a joint analysis limited to large scales, we find that both cosmologies provide an acceptable fit to the data. Full utilisation of the higher signal-to-noise small-scale measurements is hindered by uncertainty in the impact of baryon feedback and assembly bias, which we account for with a reasoned theoretical error budget. We incorporate a systematic inconsistency parameter for each redshift bin, A, that decouples the lensing and clustering. With a wide range of scales, we find different results for the consistency between the two cosmologies. Limiting the analysis to the bins for which the impact of the lens sample selection is expected to be minimal, for the Lensing cosmology, the measurements are consistent with A=1; A = 0.91 ± 0.04 (A = 0.97 ± 0.06) using DES+KiDS (HSC). For the Planck case, we find a discrepancy: A = 0.79 ± 0.03 (A = 0.84 ± 0.05) using DES+KiDS (HSC). We demonstrate that a kSZ-based estimate for baryonic effects alleviates some of the discrepancy in the Planck cosmology. This analysis demonstrates the statistical power of small-scale measurements, but caution is still warranted given modelling uncertainties and foreground sample selection effects.

Citation

Amon, A., Robertson, N. C., Miyatake, †. H., Heymans, C., White, M., Derose, J., Yuan, S., Wechsler, R. H., Varga, T. N., Bocquet, S., Dvornik, A., More, S., Ross, A. J., Hoekstra, H., Alarcon, A., Asgari, M., Blazek, J., Campos, A., Chen, R., Choi, A., …Zhang, Y. (2023). Consistent lensing and clustering in a low-S8 Universe with BOSS, DES Year 3, HSC Year 1, and KiDS-1000. Monthly notices of the Royal Astronomical Society, 518(1), 477-503. https://doi.org/10.1093/mnras/stac2938

Journal Article Type Article
Acceptance Date Oct 7, 2022
Online Publication Date Oct 16, 2022
Publication Date 2023-01
Deposit Date Dec 9, 2022
Publicly Available Date Dec 15, 2022
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Publisher Oxford University Press
Peer Reviewed Peer Reviewed
Volume 518
Issue 1
Pages 477-503
DOI https://doi.org/10.1093/mnras/stac2938
Keywords Gravitational lensing: weak; Large-scale structure of Universe; Cosmology: observations
Public URL https://hull-repository.worktribe.com/output/4140370

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Copyright Statement
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2022 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.





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