The main limiting factor of cosmological analyses based on thermal Sunyaev-Zel’dovich (SZ) cluster statistics comes from the bias and systematic uncertainties that affect the estimates of the mass of galaxy clusters. High-angular resolution SZ observations at high redshift are needed to study a potential redshift or morphology dependence of both the mean pressure profile and of the mass-observable scaling relation used in SZ cosmological analyses. The NIKA2 camera is a new generation continuum instrument installed at the IRAM 30-m telescope. With a large field of view, a high angular resolution and a high-sensitivity, the NIKA2 camera has unique SZ mapping capabilities. In this paper, we present the NIKA2 SZ large program, aiming at observing a large sample of clusters at redshifts between 0.5 and 0.9, and the characterization of the first cluster oberved with NIKA2.
Cluster cosmology with the NIKA2 SZ Large Program / Mayet, F., Adam, R., Ade, P., André, P., Andrianasolo, A., Arnaud, M., Aussel, H., Bartalucci, I., Beelen, A., Benoît, A., Bideaud, A., Bourrion, O., Calvo, M., Catalano, A., Comis, B., De Petris, M., Désert, F.-X., Doyle, S., Driessen, E.F.C., Gomez, A., et al.. - In: EPJ WEB OF CONFERENCES. - ISSN 2100-014X. - 228:(2020), p. 00017. (mm Universe @ NIKA2 - Observing the mm Universe with the NIKA2 Camera Grenoble, France ) [10.1051/epjconf/202022800017].
Cluster cosmology with the NIKA2 SZ Large Program
De Petris, M.;Pisano, G.;
2020
Abstract
The main limiting factor of cosmological analyses based on thermal Sunyaev-Zel’dovich (SZ) cluster statistics comes from the bias and systematic uncertainties that affect the estimates of the mass of galaxy clusters. High-angular resolution SZ observations at high redshift are needed to study a potential redshift or morphology dependence of both the mean pressure profile and of the mass-observable scaling relation used in SZ cosmological analyses. The NIKA2 camera is a new generation continuum instrument installed at the IRAM 30-m telescope. With a large field of view, a high angular resolution and a high-sensitivity, the NIKA2 camera has unique SZ mapping capabilities. In this paper, we present the NIKA2 SZ large program, aiming at observing a large sample of clusters at redshifts between 0.5 and 0.9, and the characterization of the first cluster oberved with NIKA2.| File | Dimensione | Formato | |
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Mayet_Cluster cosmology_2020.pdf
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Note: https://www.epj-conferences.org/articles/epjconf/abs/2020/04/epjconf_mmuniverse2019_00017/epjconf_mmuniverse2019_00017.html
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