Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Euclid preparation: XLII. A unified catalogue-level reanalysis of weak lensing by galaxy clusters in five imaging surveys
 
research article

Euclid preparation: XLII. A unified catalogue-level reanalysis of weak lensing by galaxy clusters in five imaging surveys

Sereno, M.
•
Farrens, S.
•
Ingoglia, L.
Show more
September 1, 2024
Astronomy & Astrophysics

Precise and accurate mass calibration is required to exploit galaxy clusters as astrophysical and cosmological probes in the Euclid era. Systematic errors in lensing signals by galaxy clusters can be empirically estimated by comparing different surveys with independent and uncorrelated systematics. To assess the robustness of the lensing results to systematic errors, we carried out end-to-end tests across different data sets. We performed a unified analysis at the catalogue level by leveraging the Euclid combined cluster and weak-lensing pipeline (COMB-CL). Notably, COMB-CL will measure weak lensing cluster masses for the Euclid Survey. Heterogeneous data sets from five recent, independent lensing surveys (CHFTLenS, DES SV1, HSC-SSP S16a, KiDS DR4, and RCSLenS), which exploited different shear and photometric redshift estimation algorithms, were analysed with a consistent pipeline under the same model assumptions. We performed a comparison of the amplitude of the reduced excess surface density and of the mass estimates using lenses from the Planck PSZ2 and SDSS redMaPPer cluster samples. Mass estimates agree with the results in the literature collected in the LC2 catalogues. Mass accuracy was further investigated considering the AMICO-detected clusters in the HSC-SSP XXL-North field. The consistency of the data sets was tested using our unified analysis framework. We found agreement between independent surveys at the level of systematic noise in Stage-III surveys or precursors. This indicates successful control over systematics. If this control continues into Stage IV, Euclid will be able to measure the weak lensing masses of around 13 000 (considering shot noise only) or 3000 (noise from shape and large-scale-structure) massive clusters with a signal-to-noise ratio greater than three.

  • Details
  • Metrics
Type
research article
DOI
10.1051/0004-6361/202348680
Scopus ID

2-s2.0-85204704135

Author(s)
Sereno, M.

INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna

Farrens, S.

Université Paris-Saclay

Ingoglia, L.

Alma Mater Studiorum Università di Bologna

Lesci, G. F.

INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna

Baumont, L.

Université Paris-Saclay

Covone, G.

Università degli Studi di Napoli Federico II

Giocoli, C.

INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna

Marulli, F.

INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna

Miranda La Hera, S.

Université Paris-Saclay

Vannier, M.

Observatoire de la Côte d'Azur

Show more
Corporate authors
Euclid Collaboration
Date Issued

2024-09-01

Published in
Astronomy & Astrophysics
Volume

689

Article Number

A252

Subjects

Cosmology: observations

•

Galaxies: clusters: general

•

Gravitational lensing: weak

•

Surveys

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LASTRO  
FunderFunding(s)Grant NumberGrant URL

United Kingdom Space Agency

University of Hawaii

Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University

Show more
Available on Infoscience
January 24, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/243697
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés