The XXL Survey - XVII. X-ray and Sunyaev-Zel’dovich properties of the redshift 2.0 galaxy cluster XLSSC 122

Autor: John E. Carlstrom, Florian Pacaud, Crispin Logan, Marguerite Pierre, Daniel P. Marrone, B. J. Maughan, Steven W. Allen, Jon Willis, Adam Mantz, Zubair Abdulla
Přispěvatelé: Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
galaxies: clusters: intracluster medium
Metallicity
Astrophysics::High Energy Astrophysical Phenomena
FOS: Physical sciences
Astrophysics
clusters: intracluster medium [Galaxies]
Astrophysics::Cosmology and Extragalactic Astrophysics
01 natural sciences
Intracluster medium
0103 physical sciences
Cluster (physics)
010303 astronomy & astrophysics
Scaling
Galaxy cluster
Astrophysics::Galaxy Astrophysics
galaxies: clusters: individual: XLSSC 122
Physics
010308 nuclear & particles physics
clusters: individual: XLSSC 122 [Galaxies]
X-ray
Astronomy and Astrophysics
Redshift
Space and Planetary Science
X-rays: galaxies: clusters
Cluster sampling
galaxies: clusters [X-rays]
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Astrophysics - Cosmology and Nongalactic Astrophysics
Zdroj: Astron.Astrophys.
Astron.Astrophys., 2018, 620, pp.A2. ⟨10.1051/0004-6361/201630096⟩
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2018, 620, pp.A2. ⟨10.1051/0004-6361/201630096⟩
Mantz, A B, Abdulla, Z, Allen, S W, Carlstrom, J E, Logan, C H A, Marrone, D P, Maughan, B J, Willis, J P, Pacaud, F & Pierre, M 2018, ' The XXL Survey : XVII. X-ray and Sunyaev-Zel'dovich properties of the redshift 2.0 galaxy cluster XLSSC 122 ', Astronomy and Astrophysics, vol. 620, A2 . https://doi.org/10.1051/0004-6361/201630096
Astronomy and Astrophysics-A&A, 2018, 620, pp.A2. ⟨10.1051/0004-6361/201630096⟩
ISSN: 0004-6361
Popis: We present results from a 100 ks XMM-Newton observation of galaxy cluster XLSSC 122, the first massive cluster discovered through its X-ray emission at $z\approx2$. The data provide the first precise constraints on the bulk thermodynamic properties of such a distant cluster, as well as an X-ray spectroscopic confirmation of its redshift. We measure an average temperature of $kT=5.0\pm0.7$ keV; a metallicity with respect to solar of $Z/Z_{\odot}=0.33^{+0.19}_{-0.17}$, consistent with lower-redshift clusters; and a redshift of $z=1.99^{+0.07}_{-0.06}$, consistent with the earlier photo-z estimate. The measured gas density profile leads to a mass estimate at $r_{500}$ of $M_{500}=(6.3\pm1.5)\times10^{13}M_{\odot}$. From CARMA 30 GHz data, we measure the spherically integrated Compton parameter within $r_{500}$ to be $Y_{500}=(3.6\pm0.4)\times10^{-12}$. We compare the measured properties of XLSSC 122 to lower-redshift cluster samples, and find good agreement when assuming the simplest (self-similar) form for the evolution of cluster scaling relations. While a single cluster provides limited information, this result suggests that the evolution of the intracluster medium in the most massive, well developed clusters is remarkably simple, even out to the highest redshifts where they have been found. At the same time, our data reaffirm the previously reported spatial offset between the centers of the X-ray and SZ signals for XLSSC 122, suggesting a disturbed configuration. Higher spatial resolution data could thus provide greater insights into the internal dynamics of this system.
12 pages, A&A accepted
Databáze: OpenAIRE
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