Multi-probe analysis of the galaxy cluster CL J1226.9+3332: Hydrostatic mass and hydrostatic-to-lensing bias

M. Muñoz-Echeverría (1) , R. Adam (2) , P. Ade , H. Ajeddig (3) , P. André (3) , M. Arnaud (3) , E. Artis (1) , H. Aussel (3) , I. Bartalucci , A. Beelen (4) , A. Benoît (5) , S. Berta (6) , L. Bing (6) , O. Bourrion (1) , M. Calvo (7) , A. Catalano (1) , M. de Petris , F.-X. Désert (8) , S. Doyle , E.F.C. Driessen (6) , A. Ferragamo , A. Gomez , J. Goupy (5) , F. Kéruzoré (1) , C. Kramer (9) , B. Ladjelate (9) , G. Lagache (10) , S. Leclercq (6) , J.-F. Lestrade (11) , J.-F. Macías-Pérez (1) , A. Maury (3) , P. Mauskopf , F. Mayet (1) , A. Monfardini (5) , A. Paliwal , L. Perotto (1) , G. Pisano , E. Pointecouteau (12) , N. Ponthieu (8) , G.W. Pratt (3) , V. Revéret (3) , A.J. Rigby , A. Ritacco (13, 4) , C. Romero , H. Roussel (14) , F. Ruppin , K. Schuster (6) , S. Shu , A. Sievers (9) , C. Tucker , G. Yepes

1 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
2 LLR - Laboratoire Leprince-Ringuet
3 AIM (UMR7158 / UMR_E_9005 / UM_112) - Astrophysique Interprétation Modélisation
4 IAS - Institut d'astrophysique spatiale
5 NEEL - HELFA - Hélium : du fondamental aux applications
6 IRAM - Institut de RadioAstronomie Millimétrique
7 NEEL - Cryo - Cryogénie
8 IPAG - Institut de Planétologie et d'Astrophysique de Grenoble
9 IRAM - Instituto de RadioAstronomía Milimétrica
10 LAM - Laboratoire d'Astrophysique de Marseille
11 LERMA - Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres
12 IRAP - Institut de recherche en astrophysique et planétologie
13 Astrophysique
14 IAP - Institut d'Astrophysique de Paris

We present a multi-probe analysis of the well-known galaxy cluster CL J1226.9+3332 as a proof of concept for multi-wavelength studies within the framework of the NIKA2 Sunyaev-Zel’dovich Large Program (LPSZ). CL J1226.9+3332 is a massive and high redshift (z = 0.888) cluster that has already been observed at several wavelengths. A joint analysis of the thermal SZ (tSZ) effect at millimeter wavelength with the NIKA2 camera and in X-ray with the XMM-Newton satellite permits the reconstruction of the cluster’s thermodynamical properties and mass assuming hydrostatic equilibrium. We test the robustness of our mass estimates against different definitions of the data analysis transfer function. Using convergence maps reconstructed from the data of the CLASH program we obtain estimates of the lensing mass, which we compare to the estimated hydrostatic mass. This allows us to measure the hydrostatic-to-lensing mass bias and the associated systematic effects related to the NIKA2 measurement. We obtain M500HSE = (7:65 ± 1:03) × 1014M⊙ and M500lens = (7:35 ± 0:65) × 1014M⊙, which implies a HSE-to-lensing bias consistent with 0 within 20%.

Domaines: Astrophysique [astro-ph]

M. Muñoz-Echeverría, R. Adam, P. Ade, H. Ajeddig, P. André, et al.. Multi-probe analysis of the galaxy cluster CL J1226.9+3332: Hydrostatic mass and hydrostatic-to-lensing bias. mm Universe @ NIKA2 , Jun 2021, Online, Italy. pp.00032, ⟨10.1051/epjconf/202225700032⟩. ⟨hal-03436744⟩