Unveiling the merger dynamics of the most massive MaDCoWS cluster at $z = 1.2$ from a multi-wavelength mapping of its intracluster medium properties
F. Ruppin
(1)
,
M. Mcdonald
(1)
,
M. Brodwin
(2)
,
R. Adam
(3)
,
P. Ade
(4)
,
P. André
(5)
,
A. Andrianasolo
(6)
,
M. Arnaud
(5)
,
H. Aussel
(5)
,
I. Bartalucci
(5)
,
M.W. Bautz
(1)
,
A. Beelen
(7)
,
A. Benoît
(8)
,
A. Bideaud
(8)
,
O. Bourrion
(9)
,
M. Calvo
(10)
,
A. Catalano
(9)
,
B. Comis
(9)
,
B. Decker
(2)
,
M. de Petris
(11)
,
F.-X. Désert
(6)
,
S. Doyle
(4)
,
E.F.C. Driessen
(12)
,
P.R.M. Eisenhardt
(13)
,
A. Gomez
(14)
,
A.H. Gonzalez
(15)
,
J. Goupy
(8)
,
F. Keruzore
(9)
,
C. Kramer
(16)
,
B. Ladjelate
(16)
,
G. Lagache
(17)
,
S. Leclercq
(12)
,
J.-F. Lestrade
(18)
,
J.F. Macias-Perez
(9)
,
P. Mauskopf
(4)
,
F. Mayet
(9)
,
A. Monfardini
(8)
,
E. Moravec
(15)
,
L. Perotto
(9)
,
G. Pisano
(4)
,
E. Pointecouteau
(19)
,
N. Ponthieu
(6)
,
G.W. Pratt
(5)
,
V. Reveret
(5)
,
A. Ritacco
(16)
,
C. Romero
(12)
,
H. Roussel
(20)
,
K. Schuster
(12)
,
S. Shu
(12)
,
A. Sievers
(12)
,
S.A. Stanford
(21)
,
D. Stern
(13)
,
C. Tucker
(4)
,
R. Zylka
(12)
1
MIT Kavli Institute for Astrophysics and Space Research
2 UMKC - University of Missouri [Kansas City]
3 LLR - Laboratoire Leprince-Ringuet
4 Cardiff University
5 AIM (UMR7158 / UMR_E_9005 / UM_112) - Astrophysique Interprétation Modélisation
6 IPAG - Institut de Planétologie et d'Astrophysique de Grenoble
7 IAS - Institut d'astrophysique spatiale
8 NEEL - HELFA - Hélium : du fondamental aux applications
9 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
10 NEEL - Cryo - Cryogénie
11 UNIROMA - Università degli Studi di Roma "La Sapienza" = Sapienza University [Rome]
12 IRAM - Institut de RadioAstronomie Millimétrique
13 CALTECH - California Institute of Technology
14 CAB - Centro de Astrobiologia [Madrid]
15 UF - University of Florida [Gainesville]
16 IRAM - Instituto de RadioAstronomía Milimétrica
17 LAM - Laboratoire d'Astrophysique de Marseille
18 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
19 IRAP - Institut de recherche en astrophysique et planétologie
20 IAS - Institut d'astrophysique spatiale
21 UC Davis - University of California [Davis]
2 UMKC - University of Missouri [Kansas City]
3 LLR - Laboratoire Leprince-Ringuet
4 Cardiff University
5 AIM (UMR7158 / UMR_E_9005 / UM_112) - Astrophysique Interprétation Modélisation
6 IPAG - Institut de Planétologie et d'Astrophysique de Grenoble
7 IAS - Institut d'astrophysique spatiale
8 NEEL - HELFA - Hélium : du fondamental aux applications
9 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
10 NEEL - Cryo - Cryogénie
11 UNIROMA - Università degli Studi di Roma "La Sapienza" = Sapienza University [Rome]
12 IRAM - Institut de RadioAstronomie Millimétrique
13 CALTECH - California Institute of Technology
14 CAB - Centro de Astrobiologia [Madrid]
15 UF - University of Florida [Gainesville]
16 IRAM - Instituto de RadioAstronomía Milimétrica
17 LAM - Laboratoire d'Astrophysique de Marseille
18 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
19 IRAP - Institut de recherche en astrophysique et planétologie
20 IAS - Institut d'astrophysique spatiale
21 UC Davis - University of California [Davis]
M. Mcdonald
- Fonction : Auteur
- PersonId : 755503
- ORCID : 0000-0001-5226-8349
R. Adam
- Fonction : Auteur
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- IdHAL : remi-adam
- ORCID : 0009-0000-5380-1109
- IdRef : 192629077
H. Aussel
- Fonction : Auteur
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- IdHAL : haussel
- ORCID : 0000-0002-1371-5705
- IdRef : 253124654
A. Beelen
- Fonction : Auteur
- PersonId : 755575
- ORCID : 0000-0003-3201-0185
- IdRef : 133827755
O. Bourrion
- Fonction : Auteur
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A. Catalano
- Fonction : Auteur
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- IdHAL : andreacatalano
F. Keruzore
- Fonction : Auteur
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- IdHAL : florian-keruzore
- ORCID : 0000-0002-9605-5588
- IdRef : 259733563
G. Lagache
- Fonction : Auteur
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- ORCID : 0000-0003-1492-2519
- IdRef : 158000439
J.F. Macias-Perez
- Fonction : Auteur
- PersonId : 830870
- IdHAL : juan-francisco-macias-perez
F. Mayet
- Fonction : Auteur
- PersonId : 14811
- IdHAL : frederic-mayet
- ORCID : 0000-0001-9995-4792
- IdRef : 160311675
L. Perotto
- Fonction : Auteur
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- IdHAL : lperotto
- ORCID : 0000-0001-6937-5052
- IdRef : 118429221
E. Pointecouteau
- Fonction : Auteur
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- IdHAL : etienne-pointecouteau
- ORCID : 0000-0001-8488-3645
- IdRef : 080631878
D. Stern
- Fonction : Auteur
- PersonId : 758973
- ORCID : 0000-0003-2686-9241
Résumé
The characterization of the Intra-Cluster Medium (ICM) properties of high-redshift galaxy clusters is fundamental to our understanding of large-scale structure formation processes. We present the results of a multi-wavelength analysis of the very massive cluster MOO J1142$+$1527 at a redshift $z = 1.2$ discovered as part of the Massive and Distant Clusters of WISE Survey (MaDCoWS). This analysis is based on high angular resolution $Chandra$ X-ray and NIKA2 Sunyaev-Zel'dovich (SZ) data. Although the X-ray data have only about 1700 counts, we are able to determine the ICM thermodynamic radial profiles, namely temperature, entropy, and hydrostatic mass. These have been obtained with unprecedented precision at this redshift and up to $0.7R_{500}$, thanks to the combination of high-resolution X-ray and SZ data. The comparison between the galaxy distribution mapped in infrared by $Spitzer$ and the morphological properties of the ICM derived from the combined analysis of the $Chandra$ and NIKA2 data leads us to the conclusion that the cluster is an on-going merger. We measure the hydrostatic mass profile of the cluster in four angular sectors centered on the large-scale X-ray centroid. This allows us to estimate a systematic uncertainty on the cluster total mass that characterizes both the impact of the observed deviations from spherical symmetry and of the core dynamics on the mass profile. We further combine the X-ray and SZ data at the pixel level to obtain maps of the temperature and entropy distributions averaged along the line of sight. We find a relatively low entropy core at the position of the X-ray peak and high temperature regions located on its south and west sides. The increase in ICM temperature at the location of the SZ peak is expected given the merger dynamics. (abridged)
Domaines
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