Mapping the gas thermodynamic properties of the massive cluster merger MOO J1142$+$1527 at z = 1.2

Autor: Ruppin, F., Adam, R., Ade, P., André, P., Andrianasolo, A., Arnaud, M., Aussel, H., Bartalucci, I., Bautz, M. W., Beelen, A., Benoît, A., Bideaud, A., Bourrion, O., Brodwin, M., Calvo, M., Catalano, A., Comis, B., Decker, B., De Petris, M., Désert, F. -X., Doyle, S., Driessen, E. F. C., Eisenhardt, P. R. M., Gomez, A., Gonzalez, A. H., Goupy, J., Kéruzoré, F., Kramer, C., Ladjelate, B., Lagache, G., Leclercq, S., Lestrade, J. -F., Macías-Pérez, J. F., Mauskopf, P., Mayet, F., McDonald, M., Monfardini, A., Moravec, E., Perotto, L., Pisano, G., Pointecouteau, E., Ponthieu, N., Pratt, G. W., Revéret, V., Ritacco, A., Romero, C., Roussel, H., Schuster, K., Shu, S., Sievers, A., Stanford, S. A., Stern, D., Tucker, C., Zylka, R.
Rok vydání: 2019
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1051/epjconf/202022800026
Popis: 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 MOO J1142$+$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 $z>1$.
Comment: to appear in the proceedings of the international conference entitled mm Universe @ NIKA2, Grenoble (France), June 2019, EPJ Web of conferences
Databáze: arXiv
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