J/ApJ/905/28ivo://CDS.VizieR/J/ApJ/905/28doi:10.26093/cds/vizier.19050028CDSHarris W.E.Remus R.-S.Harris G.L.H.Babyk I.V.2022-09-30T22:25:58Z2022-06-13T14:12:42ZCDS support team

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

cds-question@unistra.frgalaxiesx-ray-sourcesstellar-massesgalaxy-classification-systemsLarge galaxies may contain an "atmosphere" of hot interstellar X-ray gas, and the temperature and radial density profile of this gas can be used to measure the total mass of the galaxy contained within a given radius r. We use this technique for 102 early-type galaxies with stellar masses M_*_>10^10^M_{sun}_, to evaluate the mass fraction of dark matter (DM) within the fiducial radius r=5_re_, denoted f_5_=f_DM_(5r_e_). On average, these systems have a median f_5_~0.8-0.9 with a typical galaxy-to-galaxy scatter +/-0.15. Comparisons with mass estimates made through the alternative techniques of satellite dynamics (e.g., velocity distributions of globular clusters, planetary nebulae, satellite dwarfs) as well as strong lensing show encouraging consistency over the same range of stellar mass. We find that many of the disk galaxies (S0/SA0/SB0) have a significantly higher mean f5 than do the pure ellipticals, by {Delta}f_5_~0.1. We suggest that this higher level may be a consequence of sparse stellar haloes and quieter histories with fewer major episodes of feedback or mergers. Comparisons are made with the Magneticum Pathfinder suite of simulations for both normal and centrally dominant "Brightest Cluster" galaxies. Though the observed data exhibit somewhat larger scatter at a given galaxy mass than do the simulations, the mean level of DM mass fraction for all classes of galaxies is in good first-order agreement with the simulations. Finally, we find that the group galaxies with stellar masses near M_*_~10^11^M_{sun}_ have relatively more outliers at low f5 than in other mass ranges, possibly the result of especially effective AGN feedback in that mass range leading to expansion of their DM halos.2020ApJ...905...28Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/905/28CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/chandra : The Chandra Archive Log (CXC, 1999-2014)VII/237 : HYPERLEDA. I. Catalog of galaxies (Paturel+, 2003)IX/57 : The Chandra Source Catalog (CSC), Release 2.0 (Evans+, 2019)J/ApJ/591/850 : Radial velocities of M49 globular clusters (Cote+, 2003)J/ApJS/164/334 : ACS Virgo Cluster Survey. VI (Ferrarese+, 2006)J/A+A/459/391 : Dynamics of NGC4636 globular cluster syst. (Schuberth+, 2006)J/ApJS/182/216 : Surface photometry of Virgo ellipticals (Kormendy+, 2009)J/MNRAS/393/329 : Planetary nebulae of NGC 4494 (Napolitano+, 2009)J/AJ/137/4956 : Globular clusters around NGC 1407 (Romanowsky+, 2009)J/ApJ/772/82 : A catalog of globular cluster systems (Harris+, 2013)J/A+A/620/A111 : Confirmed PN in M87 outer regions (Longobardi+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/905/28https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/905/28http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/905/28https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/905/28https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/905/28http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/905/28GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/905/28/gal (Basic data (Table 1) and derived luminosities and masses for observed galaxies (Table 2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/905/28/gal?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/905/28/gal?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/905/28/gal?GETtext/xml+votable180.050000true9.827373893.331333060.0055555555555555566/1701 2186 2214 2227 2251 2432 4804 7424 8173 8195-8196 8537 8705 9287 9443 9583 10182 10637 11246 11263 11457 12025 12241 13564 13760 16543 17472 17745 18123 18184 18241 18935 22746 22826 23178 23306 24733 24920 24951 25055 25083 26125 26313 26338 26563 26596 26690 27652 27714 27718-27719 27760 27765 27767 27773 27907 27931 27936 28045 28143 28221 28251 28471 32482 32545 34161 34493 34534-34535 35055 35985 36152 36172 36194 36231 36247 36785 37429 37560 38347 40294 42003 43503 43626 43806 43941 45754 46164 46477 46568 46608 46987 47386 47397https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/905/28?format=asciiX-rayOpticaldefaultJ/ApJ/905/28/galBasic data (Table 1) and derived luminosities and masses for observed galaxies (Table 2)SimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlcharLEDAmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintT[-4.9/6.4] de Vaucouleurs T-type (1)src.morph.typefloatRAJ2000Right Ascension, decimal degrees (J2000) (1)degpos.eq.ra;meta.maine_MKt[0.03/0.2] Uncertainty in MKtmagstat.errorfloatDEJ2000Declination, decimal degrees (J2000) (1)degpos.eq.dec;meta.mainABmag[0.045/1.1] Foreground extinction, A_B_ in B band (2)magphys.absorptionfloatDist[9.5/216.3] Distance (1)Mpcpos.distance;pos.heliocentricfloatre[1.5/50] Effective radius (1)kpcphys.size.radiusfloate_re[0.1/6.6] Uncertainty in re (1)kpcstat.errorfloat(B-V)0[0.5/1.1] Intrinsic (dereddened) integrated color (1)magphot.color;em.opt.B;em.opt.VfloatMVt[-24/-18.36] V-band luminosity, M_V_^t^magphys.magAbsfloate_MVt[0.09/1.33] Uncertainty in MVtmagstat.errorfloatMKt[-26.64/-21.43] K-band luminosity, M_K_^t^magphys.magAbs;em.IR.Kfloatn[2.24/9.52] Predicted Sersic indexstat.fit.paramfloatMstar[0.05/6.5] Stellar mass1e+11solMassphys.massfloate_Mstar[0.02/1] Uncertainty in Mstar1e+11solMassstat.errorfloatMX[0.01/130] Gas mass1e+11solMassphys.massfloate_MX[0.0/4.51] Uncertainty in MX1e+11solMassstat.errorfloatM5[2.0/199] Total gravitating mass within 5re1e+11solMassphys.massfloate_M5[0.1/35] Uncertainty in M51e+11solMassstat.errorfloatlogMh[11.52/14.15] log, total halo (virial) masslog(solMass)phys.massfloatf5[0.05/0.99] Dark matter (DM) mass fraction (f_5_=f_DM_(5r_e_))phys.mass;arith.ratiofloate_f5[0.003/0.14] Uncertainty in f5stat.errorfloatNameGalaxy name (1)meta.id;meta.maincharEnvGroup or cluster environment (2)src.classcharTypeGalaxy Hubble Type (1)meta.notecharu_re[:] Uncertainty flag in re (1)meta.code.errorcharONameOther name or aliasmeta.idchar