J/ApJS/182/12ivo://CDS.VizieR/J/ApJS/182/12doi:10.26093/cds/vizier.21820012CDSCavagnolo K.W.Donahue M.Voit G.M.Sun M.2017-10-12T13:00:19Z2010-01-28T22:05:34ZCDS support team

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

cds-question@unistra.frx-ray-sourcesgalaxy-clustersredshiftedWe present radial entropy profiles of the intracluster medium (ICM) for a collection of 239 clusters taken from the Chandra X-ray Observatory's Data Archive. We find that most ICM entropy profiles are well fitted by a model which is a power law at large radii and approaches a constant value at small radii: K(r)=K_0_+K_100_(r/100kpc)^{alpha}^, where K_0_ quantifies the typical excess of core entropy above the best-fitting power law found at larger radii. For completeness, we include previously unpublished optical spectroscopy of H{alpha} and [NII] emission lines discussed in Cavagnolo et al. (2008ApJ...683L.107C). All data and results associated with this work are publicly available via the project Web site (ACCEPT: Archive of Chandra Cluster Entropy Profile Tables).2009ApJS..182...12Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/182/12CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/chandra : The Chandra Archive Log (CXC, 1999-)http://www.pa.msu.edu/astro/MC2/accept : Home page of the projectJ/A+A/396/397 : Deep cluster survey in Chandra archival data (Boschin+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/182/12https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/182/12http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/182/12https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/182/12https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/182/12http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/182/12GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/182/12/table1 (Summary of sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/182/12/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/182/12/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/182/12/table1?GETtext/xml+votable180.050000true104.62344583-55.944386110.0055555555555555566/50 87 206 207 306 821 1701 2251 2388 2432 4206 4341 4867 5016 5099 5100 5370 5399 5483 5536 5585 5701 5743 5881 5975 5985 6337 6383 6441 6539 7004 7026 7242 7345 7756 7768 7882 7904 8033 8066 8195 8196 8220 8264 8268 8271 8520 8526 8648 8788 8921 8969 9036 9050 9052 9168 9354 9466 9468 9476 9498 9506 9583 9764 9776 9997 10312 10442 10527 10664 10743 11080 11195 11253 11467 11591 11626 11685 11807 12121 12253 12642 12653 13314 13384 13760 14744 15045 15112 15302 16410 16434 16486 16492 16543 16609 16661 16702 16713 16787 16806 16953 17141 17171 17237 17438 17457 17499 17741 17840 18003 18016 18324 18411 18437 18475 18566 18746 18784 18800 19009 19097 19542 19608 19848 19935 20021 20083 20481 20624 21169 21211 21766 22577 22607 22661 22722 22771 22915 22970 22972 23027 23173 23306 23324 23349 23451 24853 24943 24951 25188 25451 25675 25769 25981 26037 26135 26177 26189 26208 26302 26313 26690 26756 26785 27075 27428 27574 27652 27719 27765 27962 28174 28220 28430 28448 28535 28622 29234 30946 31288 31509 31537 32500 32503 32693 32798 33235 33628 33657 34159 34161 34165 34443 35147 35271 35853 35950 36028 36082 36089 36242 36423 36846 38853 38973 39067 39077 39079 40294 40615 40777 40809 40987 43626 43836 43837 43838 43849 43948 43977 44554 45044 45421 45543 45562 45984 46474 46484 46571 46911 47043 48076 48272 48423 48489https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/182/12?format=asciiX-rayOpticaldefaultJ/ApJS/182/12/table1Summary of samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster namemeta.id;meta.maincharprimaryObsIDChandra observation identifiermeta.id;obs.param;obsintRAJ2000Cluster Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Cluster Degree of Declination (J2000)pos.eq.dec;meta.mainExpExposure timekstime.duration;obs.exposurefloatACISCCD location of cluster centermeta.notecharzRedshiftsrc.redshiftfloat<kT>Average cluster temperaturekeVphys.temperaturefloatNotesAssigned note(s) (1)meta.notecharSimbadNameSimbad column added by the CDSmeta.idcharNEDSimbad column added by the CDScharJ/ApJS/182/12/table5Summary of entropy profile fitsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster namemeta.id;meta.maincharMeth? Method of T_X_ interpolation in inner region: flat or ext (linear extrapolation)meta.notecharNbin? Number of radial bins in fitmeta.numberintnullablermax? Maximum radius for fitMpcphys.size.radiusfloatnullableK0Best-fit core entropy (K=Tx.n_e_^-2/3^)keV.cm**2stat.fit.paramfloate_K0? Uncertainty in K0keV.cm**2stat.errorfloatnullablesigK0? Number of sigma K_0_ is away from zerostat.errorfloatnullableK100Best-fit entropy at 100kpckeV.cm**2stat.fit.paramfloate_K100Uncertainty in K100keV.cm**2stat.errorfloatalphaBest-fit power-law indexspect.indexfloate_alphaUncertainty in alphastat.error;pos.eq.rafloatDOFDegrees of Freedom in fitstat.fit.dofintchi2The {chi}^2^ of best-fit modelstat.fit.chi2floatp-valProbability of worse fit given chi2 and DOFstat.probabilitychar