Three galaxy clusters selected from the XXL X-ray survey at high redshift and low mass (z similar to 1 and M-500 similar to 1 - 2 x 10(14) M-circle dot) were observed with NIKA2 to image their Sunyaev-Zel'dovich effect (SZ) signal. They all present an SZ morphology, together with the comparison with X-ray and optical data, that indicates dynamical activity related to merging events. Despite their disturbed intracluster medium, their high redshifts, and their low masses, the three clusters follow remarkably well the pressure profile and the SZ flux-mass relation expected from standard evolution. This suggests that the physics that drives cluster formation is already in place at z similar to 1 down to M-500 similar to 10(14) M-circle dot.
NIKA2 observations of 3 low-mass galaxy clusters at z ∼ 1. Pressure profile and YSZ - M relation / Adam, R; Ricci, M; Eckert, D; Ade, P; Ajeddig, H; Altieri, B; André, P; Artis, E; Aussel, H; Beelen, A; Benoist, C; Benoît, A; Berta, S; Bing, L; Birkinshaw, M; Bourrion, O; Boutigny, D; Bremer, M; Calvo, M; Cappi, A; Catalano, A; De Petris, M; Désert, Fx; Doyle, S; Driessen, Efc; Faccioli, L; Ferrari, C; Gastaldello, F; Giles, P; Gomez, A; Goupy, J; Hahn, O; Hanser, C; Horellou, C; Kéruzoré, F; Koulouridis, E; Kramer, C; Ladjelate, B; Lagache, G; Leclercq, S; Lestrade, Jf; Macías-Pérez, Jf; Madden, S; Maughan, B; Maurogordato, S; Maury, A; Mauskopf, P; Monfardini, A; Muñoz-Echeverría, M; Pacaud, F; Perotto, L; Pierre, M; Pisano, G; Pompei, E; Ponthieu, N; Revéret, V; Rigby, A; Ritacco, A; Romero, C; Roussel, H; Ruppin, F; Sereno, M; Schuster, K; Sievers, A; Vidal, Gt; Tucker, C; Zylka, R. - In: EPJ WEB OF CONFERENCES. - ISSN 2100-014X. - 293:(2024), pp. 1-6. (Intervento presentato al convegno Observing the Universe at mm wavelenghts, mm Universe 2023 tenutosi a Grenoble, France) [10.1051/epjconf/202429300002].
NIKA2 observations of 3 low-mass galaxy clusters at z ∼ 1. Pressure profile and YSZ - M relation
De Petris, M;Pisano, G;
2024
Abstract
Three galaxy clusters selected from the XXL X-ray survey at high redshift and low mass (z similar to 1 and M-500 similar to 1 - 2 x 10(14) M-circle dot) were observed with NIKA2 to image their Sunyaev-Zel'dovich effect (SZ) signal. They all present an SZ morphology, together with the comparison with X-ray and optical data, that indicates dynamical activity related to merging events. Despite their disturbed intracluster medium, their high redshifts, and their low masses, the three clusters follow remarkably well the pressure profile and the SZ flux-mass relation expected from standard evolution. This suggests that the physics that drives cluster formation is already in place at z similar to 1 down to M-500 similar to 10(14) M-circle dot.| File | Dimensione | Formato | |
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