| Issue |
EPJ Web Conf.
Volume 228, 2020
mm Universe @ NIKA2 - Observing the mm Universe with the NIKA2 Camera
|
|
|---|---|---|
| Article Number | 00026 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/epjconf/202022800026 | |
| Published online | 27 January 2020 | |
https://doi.org/10.1051/epjconf/202022800026
Mapping the gas thermodynamic properties of the massive cluster merger MOO J1142+1527 at z = 1.2
1
Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
2
Laboratoire Leprince-Ringuet, École Polytechnique, CNRS/IN2P3, 91128 Palaiseau, France
3
Astronomy Instrumentation Group, University of Cardiff, UK
4
AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, F-91191 Gif-sur-Yvette, France
5
Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
6
Institut d’Astrophysique Spatiale (IAS), CNRS and Université Paris Sud, Orsay, France
7
Institut Néel, CNRS and Université Grenoble Alpes, France
8
Univ. Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 53, avenue des Martyrs, 38000 Grenoble, France
9
Department of Physics and Astronomy, University of Missouri, 5110 Rockhill Road, Kansas City, MO 64110, USA
10
Dipartimento di Fisica, Sapienza Università di Roma, Piazzale Aldo Moro 5, I-00185 Roma, Italy
11
Institut de RadioAstronomie Millimétrique (IRAM), Grenoble, France
12
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA
13
Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz, 28850 Madrid, Spain
14
Department of Astronomy, University of Florida, 211 Bryant Space Center, Gainesville, FL 32611, USA
15
Institut de RadioAstronomie Millimétrique (IRAM), Granada, Spain
16
Aix Marseille Université, CNRS, LAM (Laboratoire d’Astrophysique de Marseille) UMR 7326, 13388, Marseille, France
17
LERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ., 75014, Paris, France
18
School of Earth and Space Exploration and Department of Physics, Arizona State University, Tempe, AZ 85287
19
IRAP, Université de Toulouse, CNRS, CNES, UPS, (Toulouse), France
20
Institut d’Astrophysique de Paris, CNRS (UMR7095), 98 bis boulevard Arago, F-75014, Paris, France
21
Department of Physics, University of California, One Shields Avenue, Davis, CA 95616, USA
* e-mail: ruppin@mit.edu
Published online: 27 January 2020
We present the results of the analysis of the very massive cluster MOO J1142+1527 at a redshift z = 1.2 based on high angular resolution NIKA2 Sunyaev-Zel’dovich (SZ) and Chandra X-ray data. This multi-wavelength analysis enables us to estimate the shape of the temperature profile with unprecedented precision at this redshift and to obtain a map of the gas entropy distribution averaged along the line of sight. The comparison between the cluster morphological properties observed in the NIKA2 and Chandra maps together with the analysis of the entropy map allows us to conclude that MOOJ1142+1527 is an on-going merger hosting a cool-core at the position of the X-ray peak. This work demonstrates how the addition of spatially-resolved SZ observations to low signal-to-noise X-ray data can bring valuable insights on the intracluster medium thermodynamic properties at z > 1.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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