J/MNRAS/328/461ivo://CDS.VizieR/J/MNRAS/328/461doi:10.26093/cds/vizier.73280461CDSO'Sullivan E.Forbes D.A.Ponman T.J.2024-06-27T20:17:51Z2006-04-05T15:36:15ZCDS support team

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

cds-question@unistra.frx-ray-sourcesgalaxiescatalogsWe present a catalogue of X-ray luminosities for 401 early-type galaxies, of which 136 are based on newly analysed ROSAT PSPC pointed observations (Cat. <IX/30>). The remaining luminosities are taken from the literature and converted to a common energy band, spectral model and distance scale. Using this sample we fit the L_X_/L_B_ relation for early-type galaxies and find a best-fit slope for the catalogue of ~2.2. We demonstrate the influence of group-dominant galaxies on the fit and present evidence that the relation is not well modelled by a single power-law fit. We also derive estimates of the contribution to galaxy X-ray luminosities from discrete-sources and conclude that they provide L_(discrete-source-contribution)_/L_B_~29.5erg/s/L_B{sun}_. We compare this result with luminosities from our catalogue. Lastly, we examine the influence of environment on galaxy X-ray luminosity and on the form of the L_X_/L_B_ relation. We conclude that although environment undoubtedly affects the X-ray properties of individual galaxies, particularly those in the centres of groups and clusters, it does not change the nature of whole populations.2001MNRAS.328..461Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/328/461CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIX/30 : Second ROSAT PSPC Catalog (ROSAT, 2000)J/ApJS/80/531 : An X-ray catalog and atlas of galaxies (Fabbiano+, 1992)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/328/461https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/328/461http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/328/461https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/328/461https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/328/461http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/328/461GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/328/461/table3 (Combined catalogue of X-ray luminosities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/328/461/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/328/461/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/328/461/table3?GETtext/xml+votable180.050000true252.1704167-62.60444440.0055555555555555566/141 379 638 764 975 1700-1701 2142 2214 2227 2230 2251 2276 2282 2432 2622 2709 2774 2777 3564 4110 4188 4439 4447 4804 4807 4989-4990 5075 5429 5701 5975 5989 6014 6087 6090 6093 6539 6951 6963 7225 7374 7385 7424 7560 7642 7658 7684 7925 7975 7986 8173 8193 8196 8521 8557 8705 9287 9464 9468 9471 9812 10364 10378-10379 10454 10551 10637 10761 11026-11027 11246 11263 11389 11418 11435 11457 11525 11791 11824 11832 12018-12019 12025 13336 13401 13543 15056 16480 16543 16898 17472 17605-17606 17612 17662 17779 17982 18103 18184 18241 18269 18931 18935 19321 19432 19508 19851 20014 20031 20101 20282 20595 20742 20745 20786 21087 21149 21169 22746 23296 23306 24681 24732-24733 24839 24896-24897 24913 24920 24951 25042 25055 25100-25101 25346-25347 25383 25533 25647 25721 25762 25768 25907 25979 26055 26060 26065 26091 26102 26125 26135 26210 26312-26313 26436 26542 26555 26596 26724 26803 27079 27186 27255 27314 27515 27580 27604 27652 27713-27714 27718-27720 27723 27728 27730 27734 27738 27743 27765 27767 27773-27774 27857 27861 27907-27908 27913-27914 27936 27938 27944 27951 28037-28038 28040 28045 28142-28143 28221 28249 28251 28361 28471 28491 28495 28538 30044 32545 32662 33802 33952 33954 33956 33986 34161 34363 34377 34401 34493 34510 34521 34533-34535 34538 34540-34542 34695 35052 35055 35621 35707 35719-35720 35911 35923 35928 35969 35985 36045 36152-36153 36156 36231 36247 36621 36623 36632 36785 37266-37267 37306 37429 37560 38347 38356 38387 38621 38658 38693 38699 38701 38704 38817 38842 38853 39035 39176 39525 39835 39858 39880 39982 40025 40052 40124 40252 40294 40321 40340 40472 40952 41339 41423 41434 42003 42030 42032 43214 43232 43259 43262 43344 43503 43597 43602 43619 43626-43627 43630 43669 43677 43712 43731 43809 43828 43830 43874 43877 43891 43915 43925 43941 44000 44026 44247 44995 45118 45294 45311 45421 45469 45636 45746 45754 45770 45821 46017 46035-46036 46038 46107 46164 46566 46568 46596 46608 46618 46659 46689 46740 46760 46987 47078 47120 47190 47253 47383 47386 47397 47574 47943 48160 48484https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/328/461?format=asciiX-raydefaultJ/MNRAS/328/461/table3Combined catalogue of X-ray luminositiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the galaxymeta.id;meta.maincharDistDistanceMpcpos.distancefloatlogLBLuminosity, based on B_T_ magnitudelog(solLum)phys.luminosity;em.opt.Bfloatn_logLB[*] *: LB luminosity is based on m_B_ magnitudemeta.notecharl_logLXLimit flag on logLXmeta.code.errorcharlogLXX-ray luminositylog(1e-07W)phys.luminosity;em.X-rayfloatr_logLX[BFRN] Source of logLX value (1)meta.bibcharTTypeT-type from LEDAmeta.notefloatSimbadSimbad column added by the CDScharNEDSimbad column added by the CDSchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main