Combining Planck and SPT cluster catalogs: cosmological analysis and impact on Planck scaling relation calibration
L. Salvati, A. Saro, S. Bocquet, M. Costanzi, B. Ansarinejad, B. A., Benson, L. E. Bleem, M. S. Calzadilla, J. E. Carlstrom, C. L. Chang, R., Chown, A. T. Crites, T. deHaan, M. A. Dobbs, W. B. Everett, B. Floyd, S., Grandis, E. M. George, N. W. Halverson, G. P. Holder

TL;DR
This paper combines SPT and Planck cluster data to calibrate Planck scaling relations independently, revealing a significant deviation from self-similar evolution and providing insights into mass bias and cosmological parameters.
Contribution
It presents the first combined analysis of SPT and Planck cluster catalogs to independently calibrate Planck scaling relations and assess their cosmological implications.
Findings
Mass slope $ eq$ self-similar expectation, indicating evolution departure.
Matter density $ eq$ Planck-only results, influenced by SPT data.
Mass bias varies with redshift and mass, increasing at high redshift and low mass.
Abstract
We provide the first combined cosmological analysis of South Pole Telescope (SPT) and Planck cluster catalogs. The aim is to provide an independent calibration for Planck scaling relations, exploiting the cosmological constraining power of the SPT-SZ cluster catalog and its dedicated weak lensing (WL) and X-ray follow-up observations. We build a new version of the Planck cluster likelihood. In the CDM scenario, focusing on the mass slope and mass bias of Planck scaling relations, we find and respectively. The results for the mass slope show a departure from the self-similar evolution, . This shift is mainly driven by the matter density value preferred by SPT data, , lower than the one obtained by Planck data alone,…
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