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Communication Dans Un Congrès Année : 2024

Planck and SPT cluster catalogs: A combined analysis

Résumé

We show the results for the first combined analysis of clusters detected by the Planck satellite and the South Pole Telescope. The combination of these two experiments, with different resolution, mass and redshift range, allows to track the full cosmological evolution of galaxy clusters and the interplay between astrophysics and cosmology. In particular, we exploit the cosmological constraining power of SPT-SZ clusters to provide an independent calibration of Planck scaling relations, and therefore a new estimation of Planck cluster masses. Combining the two cluster catalogs we are thus able to test the hypotheses of self-similarity and hydrostatic equilibrium. We show therefore the huge potentiality of combining catalogs from different experiments, in improving the cosmological analysis and the treatment of different astrophysical and systematic uncertainties.
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hal-04529694 , version 1 (03-04-2024)

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L Salvati. Planck and SPT cluster catalogs: A combined analysis. mm Universe 2023, Jun 2023, Grenoble, France. pp.00045, ⟨10.1051/epjconf/202429300045⟩. ⟨hal-04529694⟩
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