The NIKA2 Sunyaev-Zeldovich Large Program: Sample and upcoming product public release

Abstract

The NIKA2 camera operating at the IRAM 30 m telescope excels in high-angular resolution mapping of the thermal Sunyaev-Zeldovich effect towards galaxy clusters at intermediate and high-redshift. As part of the NIKA2 guaranteed time, the SZ Large Program (LPSZ) aims at tSZ-mapping a representative sample of SZ-selected galaxy clusters in the catalogues of the Planck satellite and of the Atacama Cosmology Telescope, and also observed in X-ray with XMM Newton or Chandra. Having completed observations in January 2023, we present tSZ maps of 38 clusters spanning the targeted mass ($3<M_{500}/10^{14}{M}_{\odot }<10$) and redshift ($0.5<z<0.9$) ranges. The first in depth studies of individual clusters highlight the potential of combining tSZ and X-ray observations at similar angular resolution for accurate mass measurements. These were milestones for the development of a standard data analysis pipeline to go from NIKA2 raw data to the thermodynamic properties of galaxy clusters for the upcoming LPSZ data release. Final products will include unprecedented measurements of the mean pressure profile and mass observable scaling relation using a distinctive SZ-selected sample, which will be key for ultimately improving the accuracy of cluster based cosmology.

arXiv commentto appear in Proc. of the mm Universe 2023 conference, Grenoble (France), June 2023, published by F. Mayet et al. (Eds), EPJ Web of conferences, EDP Sciences

References in corpus (15)

• The universal galaxy cluster pressure profile from a representative sample of nearby systems (REXCESS) and the Y_SZ-M_500 relation
• Galaxy cluster X-ray luminosity scaling relations from a representative local sample (REXCESS)
• The Atacama Cosmology Telescope: Sunyaev-Zel'dovich Selected Galaxy Clusters at 148 GHz from Three Seasons of Data
• The galaxy cluster mass scale and its impact on cosmological constraints from the cluster population
• The Three Hundred project: a large catalogue of theoretically modelled galaxy clusters for cosmological and astrophysical applications
• The Atacama Cosmology Telescope: The Two-Season ACTPol Sunyaev-Zel'dovich Effect Selected Cluster Catalog
• Planck 2013 results. XXIX. The Planck catalogue of Sunyaev-Zeldovich sources: Addendum
• Calibration and Performance of the NIKA2 camera at the IRAM 30-meter Telescope
• First Sunyaev-Zel'dovich mapping with the NIKA2 camera: Implication of cluster substructures for the pressure profile and mass estimate
• Resolving galaxy cluster gas properties at z~1 with XMM-Newton and Chandra
• Exploiting NIKA2/XMM-Newton imaging synergy for intermediate mass, high-$z$ galaxy clusters within the NIKA2 SZ Large Program
• Multi-probe analysis of the galaxy cluster CL J1226.9+3332: Hydrostatic mass and hydrostatic-to-lensing bias
• Comparison of hydrostatic and lensing cluster mass estimates:a pilot study in MACS J0647.7+7015
• The Three Hundred-NIKA2 Sunyaev-Zeldovich Large Program twin samples: Synthetic clusters to support real observations
• PSZ2G091:A massive double cluster at z=0.822 observed by the NIKA2 camera

Cited by in corpus (2)

• Exploiting the high-resolution NIKA2 data to study the intracluster medium and dynamical state of ACT-CL J0240.0+0116
• Inference of morphology and dynamical state of nearby $Planck$-SZ galaxy clusters with Zernike polynomials