J/A+A/686/A68ivo://CDS.VizieR/J/A+A/686/A68doi:10.26093/cds/vizier.36860068CDSRossetti M.Eckert D.Gastaldello F.Rasia E.Pratt G.W.Ettori S.,Molendi S.Arnaud M.Balboni M.Bartalucci I.Batalha R.M.Borgani S.,Bourdin H.De Grandi S.De Luca F.De Petris M.Forman W.Gaspari M.,Ghizzardi S.Iqbal A.Kay S.Lovisari L.Maughan B.J.Mazzotta P.,Pointecouteau E.Riva G.Sayers J.Sereno M.2024-11-21T20:01:34Z2024-05-30T08:30:13ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxy-clustersx-ray-sourceseffective-temperatureThe "Cluster HEritage project with XMM-Newton: Mass Assembly and Thermodynamics at the Endpoint of structure formation" (CHEX-MATE) is a multi-year Heritage program, to obtain homogeneous XMM-Newton observations of a representative sample of 118 galaxy clusters. The observations are tuned to reconstruct the distribution of the main thermodynamic quantities of the ICM up to R500 and to obtain individual mass measurements, via the hydrostatic-equilibrium equation, with a precision of 15-20%. Temperature profiles are a necessary ingredient for the scientific goals of the project and it is thus crucial to derive the best possible temperature measurements from our data. This is why we have built a new pipeline for spectral extraction and analysis of XMM-Newton data, based on a new physically motivated background model and on a Bayesian approach with Markov Chain Monte Carlo (MCMC) methods, that we present in this paper for the first time. We applied this new method to a subset of 30 galaxy clusters representative of the CHEX-MATE sample and show that we can obtain reliable temperature measurements up to regions where the source intensity is as low as 20% of the background, keeping systematic errors below 10%. We compare the median profile of our sample and the best fit slope at large radii with literature results and we find a good agreement with other measurements based on XMM-Newton data. Conversely, when we exclude from our analysis the most contaminated regions, where the source intensity is below 20 of the background, we find significantly flatter profiles, in agreement with predictions from numerical simulations and independent measurements with a combination of Sunyaev-Zeldovich and X-ray imaging data.2024A&A...686A..68Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/686/A68CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/594/A27 : Planck Sunyaev-Zeldovich sources (PSZ2) (Planck+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/686/A68https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/686/A68http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/686/A68https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/686/A68https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/686/A68http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/686/A68GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/686/A68/tablec1 (Temperature profiles for the clusters of our sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/686/A68/tablec1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/686/A68/tablec1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/686/A68/tablec1?GETtext/xml+votable180.050000true344.701-34.80050.0055555555555555566/708 9036 9050 9506 9776 9997 10416 12664 18534 20290 20302 20335 22972 25675 26189 27966 28174 28181 28271 28512 32362 32503 32693 32766 33586 35310 41081 44802 46474 46571https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/686/A68?format=asciiX-raydefaultJ/A+A/686/A68/tablec1Temperature profiles for the clusters of our sampleE_TUpward error on temperaturekeVstat.error;stat.maxfloatSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster Namemeta.id;meta.maincharR500Cluster sizearcminphys.angSizefloatTmeanMean cluster temperaturekeVphys.temperaturefloatRAJ2000Center right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Center declination (J2000)degpos.eq.dec;meta.mainRadiusDistance of the radial bin from the centerarcminspect.dopplerVelocfloatWidthWidth of the radial binarcminstat.fit.paramfloatTBest-fit temperature in the radial binkeVphys.temperaturefloate_TDownward error on temperaturekeVstat.errorfloatSOU/BKGSOU/BKG in the radial bin (1)meta.code.qualdouble