J/A+A/585/A130ivo://CDS.VizieR/J/A+A/585/A130doi:10.26093/cds/vizier.35850130CDSHofmann F.Sanders J.S.Nandra K.Clerc N.Gaspari M.2017-12-05T05:10:18Z2016-01-08T08:41:04ZCDS support team

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

cds-question@unistra.frgalaxy-clustersx-ray-sourcesIn high-resolution X-ray observations of the hot plasma in clusters of galaxies significant structures caused by AGN feedback, mergers, and turbulence can be detected. Many clusters have been observed by Chandra in great depth and at high resolution. Using archival data taken with the Chandra ACIS instrument the aim was to study thermodynamic perturbations of the X-ray emitting plasma and to apply this to better understand the thermodynamic and dynamic state of the intra cluster medium (ICM). We analyzed deep observations for a sample of 33 clusters with more than 100ks of Chandra exposure each at distances between redshift 0.025 and 0.45. The combined exposure of the sample is 8Ms. Fitting emission models to different regions of the extended X-ray emission we searched for perturbations in density, temperature, pressure, and entropy of the hot plasma. For individual clusters we mapped the thermodynamic properties of the ICM and measured their spread in circular concentric annuli. Comparing the spread of different gas quantities to high-resolution 3D hydrodynamic simulations, we constrain the average Mach number regime of the sample to Mach1D ~0.16+/-0.07. In addition we found a tight correlation between metallicity, temperature and redshift with an average metallicity of Z~0.3+/-0.1 Z(solar). This study provides detailed perturbation measurements for a large sample of clusters which can be used to study turbulence and make predictions for future X-ray observatories like eROSITA, Astro-H, and Athena.2016A&A...585A.130Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/585/A130CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/585/A130https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/585/A130http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/585/A130https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/585/A130https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/585/A130http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/585/A130GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/585/A130/table1 (Sample properties and fits files informations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/585/A130/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/585/A130/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/585/A130/table1?GETtext/xml+votable180.050000true206.89692-11.753830.0055555555555555566/87 207 7768 8066 8264 8969 9168 9468 10271 10307 11467 11672 12642 14744 16486 17141 22577 22607 22972 25675 26037 26189 26208 26785 27428 28430 31509 31537 38973 40613 40777 45984 46398https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/585/A130?format=asciiX-raydefaultJ/A+A/585/A130/table1Sample properties and fits files informationsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster name (1)meta.id;meta.maincharclusterAbbreviate name of cluster, used for the fits file namesmeta.idcharnHHydrogen column density1e+22cm**-2phys.columnDensityfloat<Tmap>Mean map temperaturekeVphys.temperaturefloate_<Tmap>rms uncertainty on <Tmap>keVstat.errorfloatrFOVMaximum radius (from X-ray peak) covered in our analysisMpcphys.size.radius;stat.maxfloatr500Overdensity radius (2)Mpcphys.size.radiusfloate_r500rms uncertainty on r500 (2)Mpcstat.errorfloatM500Oversensity mass (2)1e+14solMassphys.massfloate_M500rms uncertainty on M500 (2)1e+14solMassstat.errorfloatrFOV/r500Radius ratiophys.size;arith.ratiofloatRAJ2000Right ascension of image center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of image center (J2000)degpos.eq.dec;meta.mainImageName of the fits image in subdirectory imagesmeta.id;meta.filecharInt5Name of the fits file (asymmetry measured in 5 annuli) in subdirectory tables (3)meta.id;meta.fitscharPixlistName of the fits file (pixel by pixel thermodynamic map) in subdirectory tables (4)meta.id;meta.fitschar