The SRG/eROSITA All-Sky Survey: Weak-Lensing of eRASS1 Galaxy Clusters in KiDS-1000 and Consistency Checks with DES Y3 & HSC-Y3 - Archive ouverte HAL Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2024

The SRG/eROSITA All-Sky Survey: Weak-Lensing of eRASS1 Galaxy Clusters in KiDS-1000 and Consistency Checks with DES Y3 & HSC-Y3

Florian Kleinebreil
  • Fonction : Auteur
Sebastian Grandis
  • Fonction : Auteur
Tim Schrabback
  • Fonction : Auteur
Vittorio Ghirardini
  • Fonction : Auteur
I-Non Chiu
  • Fonction : Auteur
Ang Liu
  • Fonction : Auteur
Matthias Kluge
  • Fonction : Auteur
Thomas H Reiprich
  • Fonction : Auteur
Emmanuel Artis
  • Fonction : Auteur
Emre Bahar
  • Fonction : Auteur
Fabian Balzer
  • Fonction : Auteur
Esra Bulbul
  • Fonction : Auteur
Johan Comparat
  • Fonction : Auteur
Christian Garrel
  • Fonction : Auteur
Daniel Gruen
  • Fonction : Auteur
Xiangchong Li
  • Fonction : Auteur
Hironao Miyatake
  • Fonction : Auteur
Satoshi Miyazaki
  • Fonction : Auteur
Miriam E Ramos-Ceja
  • Fonction : Auteur
Jeremy Sanders
  • Fonction : Auteur
Riccardo Seppi
  • Fonction : Auteur
Nobuhiro Okabe
  • Fonction : Auteur
Xiaoyuan Zhang
  • Fonction : Auteur

Résumé

We aim to participate in the calibration of the X-ray photon count rate to halo mass scaling relation of galaxy clusters selected in the first eROSITA All-Sky Survey on the Western Galactic Hemisphere (eRASS1) using KiDS-1000 weak-lensing (WL) data. We measure the radial shear profiles around eRASS1 galaxy clusters using background galaxies in KiDS-1000, as well as the cluster member contamination. Furthermore we provide consistency checks with the other stage-III WL surveys who take part in the eRASS1 mass calibration, DES Y3 and HSC-Y3. We determine the cluster member contamination of eRASS1 clusters present in KiDS-1000 based on source number density profiles, where we account for the obscuration caused by cluster galaxies. The extracted shear profiles, together with the contamination model and the lens sample selection, are then analysed through a Bayesian population model. We calibrate the WL mass bias parameter by analysing realistic synthetic shear profiles from mock cluster catalogues. Our consistency checks between KiDS-1000 and DES Y3 & HSC-Y3 include the comparison of contamination-corrected density contrast profiles employing the union of background sources around common clusters, as well as the individual scaling relation results. We present a global contamination model for eRASS1 clusters in KiDS-1000 and the calibration results of the X-ray photon count rate to halo mass relation. The results of the WL mass bias parameter show that the uncertainty of the multiplicative shear bias dominates the systematic error budget at low clusters redshifts while the uncertainty of our contamination model does at high ones. The cross-checks between the three WL surveys show that they are statistically consistent with each other. This enables for the first time cosmological constraints from clusters calibrated by three state-of-the-art WL surveys. (abridged)

Dates et versions

hal-04483521 , version 1 (29-02-2024)

Identifiants

Citer

Florian Kleinebreil, Sebastian Grandis, Tim Schrabback, Vittorio Ghirardini, I-Non Chiu, et al.. The SRG/eROSITA All-Sky Survey: Weak-Lensing of eRASS1 Galaxy Clusters in KiDS-1000 and Consistency Checks with DES Y3 & HSC-Y3. 2024. ⟨hal-04483521⟩
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