EPJ Web of Conferences (Jan 2022)
PSZ2 G091: A massive double cluster at z ~ 0.822 observed by the NIKA2 camera
- Artis E.,
- Adam R.,
- Ade P.,
- Ajeddig H.,
- André P.,
- Arnaud M.,
- Aussel H.,
- Bartalucci I.,
- Beelen A.,
- Benoît A.,
- Berta S.,
- Bing L.,
- Bourrion O.,
- Calvo M.,
- Catalano A.,
- De Petris M.,
- Désert F.-X.,
- Doyle S.,
- Driessen E. F. C.,
- Ferragamo A.,
- Gomez A.,
- Goupy J.,
- Kéruzoré F.,
- Kramer C.,
- Ladjelate B.,
- Lagache G.,
- Leclercq S.,
- Lestrade J.-F.,
- Macías-Pérez J.-F.,
- Maury A.,
- Mauskopf P.,
- Mayet F.,
- Monfardini A.,
- Muñoz-Echeverría M.,
- Paliwal A.,
- Perotto L.,
- Pisano G.,
- Pointecouteau E.,
- Ponthieu N.,
- Pratt G. W.,
- Revéret V.,
- Rigby A. J.,
- Ritacco A.,
- Romero C.,
- Roussel H.,
- Ruppin F.,
- Schuster K.,
- Shu S.,
- Sievers A.,
- Tucker C.,
- Yepes G.
Affiliations
- Artis E.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Adam R.
- LLR (Laboratoire Leprince-Ringuet), CNRS, École Polytechnique, Institut Polytechnique de Paris
- Ade P.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- Ajeddig H.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot
- André P.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot
- Arnaud M.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot
- Aussel H.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot
- Bartalucci I.
- INAF, IASF-Milano
- Beelen A.
- Institut d’Astrophysique Spatiale (IAS), CNRS, Université Paris Sud
- Benoît A.
- Institut Néel, CNRS, Université Grenoble Alpes
- Berta S.
- Institut de RadioAstronomie Millimétrique (IRAM)
- Bing L.
- Aix Marseille Univ, CNRS, CNES, LAM (Laboratoire d’Astrophysique de Marseille)
- Bourrion O.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Calvo M.
- Institut Néel, CNRS, Université Grenoble Alpes
- Catalano A.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- De Petris M.
- Dipartimento di Fisica, Sapienza Università di Roma
- Désert F.-X.
- Univ. Grenoble Alpes, CNRS, IPAG
- Doyle S.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- Driessen E. F. C.
- Institut de RadioAstronomie Millimétrique (IRAM)
- Ferragamo A.
- Dipartimento di Fisica, Sapienza Università di Roma
- Gomez A.
- Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz
- Goupy J.
- Institut Néel, CNRS, Université Grenoble Alpes
- Kéruzoré F.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Kramer C.
- Instituto de Radioastronomía Milimétrica (IRAM)
- Ladjelate B.
- Instituto de Radioastronomía Milimétrica (IRAM)
- Lagache G.
- Aix Marseille Univ, CNRS, CNES, LAM (Laboratoire d’Astrophysique de Marseille)
- Leclercq S.
- Institut de RadioAstronomie Millimétrique (IRAM)
- Lestrade J.-F.
- LERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Université, UPMC
- Macías-Pérez J.-F.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Maury A.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot
- Mauskopf P.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- Mayet F.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Monfardini A.
- Institut Néel, CNRS, Université Grenoble Alpes
- Muñoz-Echeverría M.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Paliwal A.
- Dipartimento di Fisica, Sapienza Università di Roma
- Perotto L.
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3
- Pisano G.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- Pointecouteau E.
- Univ. de Toulouse, UPS-OMP, Institut de Recherche en Astrophysique et Planétologie
- Ponthieu N.
- Univ. Grenoble Alpes, CNRS, IPAG
- Pratt G. W.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot
- Revéret V.
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot
- Rigby A. J.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- Ritacco A.
- Institut d’Astrophysique Spatiale (IAS), CNRS, Université Paris Sud
- Romero C.
- Department of Physics and Astronomy, University of Pennsylvania
- Roussel H.
- Institut d’Astrophysique de Paris, CNRS (UMR7095)
- Ruppin F.
- Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology
- Schuster K.
- Institut de RadioAstronomie Millimétrique (IRAM)
- Shu S.
- Caltech
- Sievers A.
- Instituto de Radioastronomía Milimétrica (IRAM)
- Tucker C.
- School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade
- Yepes G.
- Departamento de Física Teórica and CIAFF, Facultad de Ciencias, Modulo 8, Universidad Autánoma de Madrid
- DOI
- https://doi.org/10.1051/epjconf/202225700003
- Journal volume & issue
-
Vol. 257
p. 00003
Abstract
PSZ2 G091.83+26.11 is a massive galaxy cluster with M500 = 7:43 × 1014M⊙ at z = 0:822. This object exhibits a complex morphology with a clear bimodality observed in X-rays. However, it was detected and analysed in the Planck sample as a single, spherical cluster following a universal profile [1]. This model can lead to miscalculations of thermodynamical quantities, like the pressure profile. As future multiwavelength cluster experiments will detect more and more objects at higher redshifts (where we expect the fraction of merging objects to be higher), it is crucial to quantify this systematic effect. In this work, we use high-resolution observations of PSZ2 G091.83+26.11 by the NIKA2 camera to integrate the morphological characteristics of the cluster in our modelling. This is achieved by fitting a two-halo model to the SZ image and then by reconstruction of the resulting projected pressure profile. We then compare these results with the spherical assumption.
