https://doi.org/10.1051/epjconf/202225700038
The NIKA2 Sunyaev-Zeldovich Large Program: Precise galaxy cluster physics for an accurate cluster-based cosmology
1 Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38000 Grenoble, France
2 LLR, CNRS, École Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
3 School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade, Cardiff, CF24 3AA, UK
4 AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, 91191 Gifsur-Yvette, France
5 INAF, IASF-Milano, Via A. Corti 12, 20133 Milano, Italy
6 Institut d’Astrophysique Spatiale (IAS), CNRS, Université Paris Sud, Orsay, France
7 Institut Néel, CNRS, Université Grenoble Alpes, France
8 Institut de RadioAstronomie Millimétrique (IRAM), Grenoble, France
9 Aix Marseille Univ, CNRS, CNES, LAM, Marseille, France
10 Dipartimento di Fisica, Sapienza Università di Roma, Piazzale Aldo Moro 5, I-00185 Roma, Italy
11 Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
12 Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz, 28850 Madrid, Spain
13 Instituto de Radioastronomía Milimétrica (IRAM), Granada, Spain
14 LERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Université, UPMC, 75014 Paris, France
15 Univ. de Toulouse, UPS-OMP, CNRS, IRAP, 31028 Toulouse, France
16 Laboratoire de Physique de l’École Normale Supérieure, ENS, PSL Research University, CNRS, Sorbonne Université, Université de Paris, 75005 Paris, France
17 Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA, 19104, USA
18 Institut d’Astrophysique de Paris, CNRS (UMR7095), 98 bis boulevard Arago, 75014 Paris, France
19 Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
20 School of Earth and Space Exploration and Department of Physics, Arizona State University, Tempe, AZ 85287, USA
21 Caltech, Pasadena, CA 91125, USA
22 Departamento de Física Teórica and CIAFF, Facultad de Ciencias, Modulo 8, Universidad Autánoma de Madrid, 28049 Madrid, Spain
* e-mail: laurence.perotto@lpsc.in2p3.fr
Published online: 17 January 2022
The NIKA2 Guaranteed-Time SZ Large Program (LPSZ) is dedicated to the high-angular resolution SZ mapping of a representative sample of 45 SZ-selected galaxy clusters drawn from the catalogues of the Planck satellite, or of the Atacama Cosmology Telescope. The LPSZ sample spans a mass range from 3 to 11 × 1014M⊙ and a redshift range from 0:5 to 0:9, extending to higher redshift and lower mass the previous samples dedicated to the cluster mass calibration and universal properties estimation. The main goals of the LPSZ are the measurement of the average radial profile of the ICM pressure up to R500 by combining NIKA2 with Planck or ACT data, and the estimation of the scaling law between the SZ observable and the mass using NIKA2, XMM-Newton and Planck/ACT data. Furthermore, combining LPSZ data with existing or forthcoming public data in lensing, optical/NIR or radio domains, we will build a consistent picture of the cluster physics and further gain knowledge on the mass estimate as a function of the cluster morphology and dynamical state.
We give an overview of the LPSZ, present recent results and discuss the future implication for cosmology with galaxy clusters.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
