The SZ-Mass scaling relation with the NIKA2 SZ Large Program

Moyer-Anin, A., Adam, R., Ade, P. ORCID: https://orcid.org/0000-0002-5127-0401, Ajeddig, H., Amarantidis, S., André, P., Aussel, H., Bartalucci, I., Beelen, A., Benoît, A., Berta, S., Béthermin, M., Bolliet, B., Bongiovanni, A., Bounmy, J., Bourrion, O., Calvo, M., Catalano, A., Chérouvrier, D., De Petris, M., Désert, F.-X., Doyle, S. ORCID: https://orcid.org/0000-0002-9054-986X, Driessen, E. F. C., Ejlali, G., Ferragamo, A., Gomez, A., Goupy, J., Hanser, C., Katsioli, S., Kéruzoré, F., Kramer, C., Ladjelate, B., Lagache, G., Leclercq, S., Lestrade, J.-F., Macías-Pérez, J. F., Madden, S. C., Maury, A., Mayet, F., Melin, J.B., Monfardini, A., Muñoz-Echeverría, M., Myserlis, I., Paliwal, A., Perotto, L., Pisano, G., Pointecouteau, E., Ponthieu, N., Pratt, G. W., Revéret, V., Rigby, A. J., Ritacco, A., Roussel, H., Ruppin, F., Sánchez-Portal, M., Savorgnano, S., Schuster, K., Sievers, A., Tucker, C. ORCID: https://orcid.org/0000-0002-1851-3918, Wicker, R. and Yepes, G. 2026. The SZ-Mass scaling relation with the NIKA2 SZ Large Program. Presented at: mm Universe 2025, Chicago, USA, 23-27 June 2025. EPJ Web of Conferences. , vol.353 Società Italiana di Fisica, 01011. 10.1051/epjconf/202635301011

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Abstract

In Sunyaev-Zeldovich (SZ) cluster cosmology, accurately determining cluster masses is crucial for constraining cosmological parameters through cluster number counts. As the mass is not an observable, a scaling relation is needed to link cluster masses to the integrated Compton parameter Y, i.e., the SZ observable, to exploit data from large millimeter surveys. Former cosmological results use a scaling relation obtained with clusters at low redshift (z < 0.5) observed in X-ray and in SZ at an angular resolution above 1 arcminute. The SZ large program (LPSZ) of the NIKA2 collaboration uses a sample of clusters at intermediate to high redshift (from z = 0.5 to z = 0.9) observed at similarly high-angular resolution both in SZ and in X-ray. We present the SZ-Mass scaling relation parameters calibrated thanks to the LPSZ data.

Item Type:	Conference or Workshop Item - published (Paper)
Date Type:	Published Online
Status:	Published
Schools:	Schools > Physics and Astronomy
Publisher:	Società Italiana di Fisica
ISSN:	2100-014X
Date of First Compliant Deposit:	2 March 2026
Last Modified:	02 Mar 2026 14:17
URI:	https://orca.cardiff.ac.uk/id/eprint/185382

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