AXES-SDSS galaxy groups J/A+A/690/A52 ivo://CDS.VizieR/J/A+A/690/A52 doi:10.26093/cds/vizier.36900052 CDS Damsted S. Finoguenov A. Lietzen H. Mamon G.A. Comparat J. Tempel E.,Dmitrieva I. Clerc N. Collins C. Gozaliasl G. Eckert D. 2025-02-18T20:01:36Z 2024-09-27T10:27:48Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr galaxy-clusters x-ray-sources visible-astronomy Advances in cosmological studies require us to improve our understanding of the baryonic content of galaxy groups. The key baryonic components of groups are galaxies and hot gas, while key non-baryonic mass tracers are the velocity dispersion of galaxies and the distribution of galaxies within the group. We revisit the picture of X-ray emission of groups through the study of systematic differences in the optical properties of groups, with and without X-ray emission, and we study the effect of the large-scale density field on scaling relations. We present the identification of X-ray galaxy groups using a combination of ROSAT All Sky Survey (RASS) and Sloan Digital Sky Survey (SDSS) data. We include a new X-ray reanalysis of RASS, covering very extended (up to a size of half a degree) sources, and we account for differences in the limiting sensitivity with respect to compact and very extended X-ray emission. We applied a screening of the identified X-ray sources, based on the optical properties, to achieve 95% clean catalogues. We used a mock SDSS survey to understand the performance of our FoF group finder and applied the Clean algorithm to revise group mass estimates and achieve a clean membership catalogue. X-ray groups exhibit less scatter in the scaling relations and selecting the groups based on the extended X-ray emission leads to an additional scatter reduction. Most of the scatter for the optical groups is associated with a small (6%) fraction of outliers, primarily associated with low optical-luminosity groups found in dense regions of the cosmic web. These groups are primary candidates for the contaminants in the optical group catalogues. We find that removing only those groups from the optical group sample using optically measured properties leads to a substantial reduction in the scatter of the scaling relations of the optical groups. We report a dependence of both the X-ray and optical luminosity of groups {on large-scale density}, which we associate with the assembly bias. These results motivate an introduction of an additional characterisation of galaxy clusters and shed light on the physical origin of the anomalous clustering of galaxy clusters, found by the Dark Energy Survey (DES). 2024A&A...690A..52D https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/690/A52 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999) IX/29 : ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000) J/A+A/461/397 : RASS-SDSS galaxy cluster survey. V. (Popesso+, 2007) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/690/A52 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/690/A52 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/690/A52 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/690/A52 https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/690/A52 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/690/A52 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/A+A/690/A52/tablec1 (Clean SDSS FoF groups) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/690/A52/tablec1? https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/690/A52/tablec1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/690/A52/tablec1? GET text/xml+votable 180.0 50000 true 127.165364743 30.421435495 0.005555555555555556 Cone search capability for table J/A+A/690/A52/tablec2 (Compact X-ray catalogue of SDSS groups) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/690/A52/tablec2? https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/690/A52/tablec2? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/690/A52/tablec2? GET text/xml+votable 180.0 50000 true 201.29915 57.60069 0.005555555555555556 Cone search capability for table J/A+A/690/A52/tablec3 (Extended X-ray catalogue of SDSS groups) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/690/A52/tablec3? https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/690/A52/tablec3? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/690/A52/tablec3? GET text/xml+votable 180.0 50000 true 201.15987 57.63863 0.005555555555555556 Cone search capability for table J/A+A/690/A52/tablec4 (Clean members of SDSS FoF groups) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/690/A52/tablec4? https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/690/A52/tablec4? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/690/A52/tablec4? 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11502-11503 11506 11512 11515 11528 11780 11782-11785 11787 11796 11804-11806 11813-11818 11821-11824 11826 11829-11833 11836 11838-11840 11842-11844 11846-11847 11851 11853 11856 11858 11872-11873 11876 11883-11884 11904 11906-11908 11916 11919 11921 11925 11927 11932 11941-11945 11947 11954 11968 21845-21847 21852-21853 21855 21877-21879 21887 21959 21964-21965 21967 21970-21973 21976-21977 21982-21983 21991 22002-22003 22012-22013 22356-22358 22361 22363 22385 22388 22396-22397 22399 22485 25566 25575 25581-25583 25586-25588 25596 25598-25599 25822-25823 25841 25843 25852-25854 25885 25887 25905 25908-25909 25911-25912 25915-25917 25919 25926 25928 25930-25931 25933 25935 25944 25948 25951 25960 25962 25968 25970 25985 25987 25994-25997 26000-26002 26004-26005 26007 26009-26013 26015-26017 26019 26022-26025 26027-26028 26031-26032 26035 26044 26046-26047 26056 26060-26061 26063-26065 26067 26080 26082-26083 26085 26087 26108-26110 26141 26143 26157 26163 26169 26171 26178-26179 26188-26189 26191 26200 26202-26203 26212 26215 26222-26223 26225 26233-26238 26244-26246 26248 26250 26254 26257 26259 26264-26266 26273-26278 26282 26284-26286 26293-26295 26304 26306-26310 26316-26318 26324 26327 26332 26335 26337-26339 26344-26346 26357-26359 26376 26393-26397 26399 26403 26410-26413 26415 26418-26419 26424 26426-26428 26430-26431 26440-26441 26443-26444 26447 26457-26461 26463-26466 26469 26485-26487 26490-26493 26495 26497-26499 26516-26517 26532-26534 26540 26542 26548 26550 26552-26553 26559 26564 26566 26568-26570 26577 26579 26581 26583-26586 26593 26596 26598-26599 26602 26604 26606-26608 26610 26612 26615 26617-26618 26620-26621 26623 26941-26943 26945 26948-26949 26951 26953 26955 26957 26959 26965-26966 26972-26973 26976-26977 26982-26985 26987 26993-26995 26997 26999-27002 27004 27007 27022 27025 27027-27029 27035 27037-27039 27041-27046 27048 27050-27051 27057-27060 27064 27066-27067 27070-27074 27077-27079 27089-27091 27096-27098 27101 27107 27114-27115 27118-27119 27123 27126 27130-27134 27199 27214-27215 27218-27220 27222-27223 27228 27230-27231 27234-27235 27241-27243 27248-27249 27251 27254-27255 27260-27262 27279 27284-27285 27289 27292 27294 27301-27302 27306 27308 27314 27316-27318 27321 27323-27325 27327-27328 27331-27334 27337 27339-27341 27343 27348 27350-27351 27353 27355-27356 27358 27362 27365 27368 27376-27378 27381-27383 27390-27392 27394 27397-27400 27402-27403 27408-27409 27411 27413-27414 27420 27422-27424 27426-27427 27429 27431 27433-27435 27445-27446 27448 27450-27452 27454-27456 27458 27465 27467 27476 27478-27479 27484 27486 27488-27490 27493-27494 27497 27499 27509-27513 27515-27518 27521-27526 27529 27535 27544 27547 27550-27552 27554-27555 27558-27559 27569-27574 27580 27582-27583 27593-27597 27604 27606 27608-27609 27611 27613-27617 27619 27625-27627 27634 27638 27646 27648-27649 27651 27659-27662 27664-27666 27672 27674 27681-27683 27696 27700-27701 27706-27707 27709-27711 27736 27738-27739 27747 27753 27755 27760-27761 27763 27769-27771 27776-27778 27789-27790 27809 27818 27820-27821 27823-27825 27827 27832 27835 27840-27842 27844-27846 27848 27850-27851 27860-27862 27864-27865 27867 27885-27886 27888-27889 27891 27894 27898 27900-27901 27908 27910-27911 27918 27920 27925 27933 27940 27942-27943 27953 27957-27959 27964 27966-27969 27973 27975 27978-27980 27982-27984 27986 27988-27989 27991-27994 28000-28001 28003-28005 28007-28008 28017-28022 28025 28031-28033 28040-28042 28045-28046 28049 28051-28053 28056-28057 28060 28063-28064 28067 28073-28075 28077-28078 28080-28082 28093 28098 28104 28106 28115 28122 28129 28131-28133 28135 28137 28139 28141 28143-28145 28147 28156-28157 28159-28160 28162-28163 28165-28169 28171-28174 28178 28188-28189 28191 28201 28203 28205-28209 28220-28221 28225-28227 28241 28243 28246-28247 28260 28262-28265 28280-28281 28283-28285 28289-28291 28293-28295 28300-28301 28303 28314-28315 28318 28321 28323-28324 28326-28327 28330-28331 28333-28335 28340-28341 28343 28348-28350 28353-28354 28356 28358-28361 28363 28365-28367 28380-28381 28383 28385-28390 28392-28393 28397 28404-28406 28408-28409 28411 28420-28421 28423 28428 28430-28433 28435-28436 28438-28439 28444 28446-28447 28449-28450 28452-28453 28455 28458 28460 28462-28463 28469-28471 28480-28482 28484-28486 28490-28491 28500-28501 28507 28510 28513-28515 28524 28526-28527 28532 28534-28535 28542-28543 28545-28548 28550-28552 28554-28555 28558 28565 28569-28571 28573-28575 28580-28581 28594-28595 28600-28601 28620 28622-28623 28628 28630 28635-28636 28638-28641 28643 28657 28659 28661-28663 28669 28671 31145 31147 31290-31292 31311 31322-31323 31332-31333 31336 31338-31339 31354-31355 31372-31374 31376 31378-31379 31381 31383-31385 31387-31388 31390-31391 31396 31398-31399 31401 31403 31409-31413 31415 31424 31426 31430 31434-31435 31441 31445-31450 31453 31455 31458-31459 31468 31471 31478 31480-31481 31483 31530-31531 31546 31550-31551 31594 31598-31599 31622 31632-31633 31635 31640-31641 31644-31645 31647 31650-31651 31656-31657 31662-31663 31665-31666 31674-31677 31679 31683 31689 31693-31695 31704 31706 31710 31716-31718 31724-31725 31727-31728 31730-31732 31734 31738-31739 32397 32408 32414 32423 32427 32430 32434 32438 32442-32443 32456-32458 32462 32484 32486 32489-32492 32494 32497 32500-32501 32503 32508-32509 32674 32684 32686 45045 45050 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/690/A52?format=ascii X-ray Optical default J/A+A/690/A52/tablec1 Clean SDSS FoF groups recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Group FoF group identification number (GROUP_ID) meta.id int RAJ2000 Highest rank galaxy next X-ray peak, right ascension (J2000) (RA_OPT) deg pos.eq.ra;meta.main DEJ2000 Highest rank galaxy next X-ray peak, declination (J2000) (DEC_OPT) deg pos.eq.dec;meta.main Nmemb Number of spectroscopic members after the cleaning (NMEM) meta.number int zsp Group redshift, assigned using median value of clean members (ZSPEC) src.redshift double sigmaGAP Gapper estimate of the cluster velocity dispersion (VDISP_GAP) km/s phys.veloc.dispersion double e_sigmaGAP Error on sigmaGAP (EVDISP_GAP) km/s stat.error double sigmaMAD Velocity dispersion from mean absolute deviation (VDISP_MAD) km/s phys.veloc.dispersion double R200c R200c radius (R_200c) kpc phys.size.radius double LR195 ? Cleaned luminosity in r band, using Mr<-19.5 galaxy sample (z<0.06 groups) (L_R195_CLEAN) solLum phys.luminosity;em.opt double nullable e_LR195 ? Error on LR195 (EL_R195_CLEAN) solLum stat.error double nullable D10 Large-scale density, in 0.01227*10^10^M_{sun}/Mpc^3^ units (D_10) 1.0227e+09solMass.Mpc**-3 phys.density double e_D10 Error on D10, in 0.01227*10^10^M_{sun}/Mpc^3^ units (ED_10) 1.0227e+09solMass.Mpc**-3 stat.error double
J/A+A/690/A52/tablec2 Compact X-ray catalogue of SDSS groups R200c Apparent R200c radius of the galaxy cluster (R200C_DEG) deg phys.angSize float recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Group FoF group identification number (GROUP_ID) meta.id int zsp Group redshift, assigned using median value of clean members (ZSPEC) src.redshift double CODEX The CODEX cluster candidate unique identifier (CODEX) meta.id int RAJ2000 X-ray detection right ascension (J2000) (RA) deg pos.eq.ra;meta.main DEJ2000 X-ray detection declination (J2000) (DEC) deg pos.eq.dec;meta.main LX0124 Luminosity in the (0.1-2.4)keV band of the cluster, aperture R500c (LX0124) 1e-07W phys.luminosity;em.X-ray double e_LX0124 Uncertainty on LX0124 (ELX) 1e-07W stat.error double Flux052 Galaxy cluster X-ray flux in the 0.5-2.0keV band (FLUX052) mW.m**-2 phot.flux;em.X-ray double e_Flux052 Uncertainty on FLUX052 (EFLUX052) mW.m**-2 stat.error double RE Apparent radial extent of X-ray emission (R_E) arcmin phys.angSize double
J/A+A/690/A52/tablec3 Extended X-ray catalogue of SDSS groups zp Group redshift, assigned using median value of clean members (ZSPEC) src.redshift double AXES The AXES cluster candidate unique identifier (AXES) meta.id int RAJ2000 X-ray detection right ascension (J2000) (RA) deg pos.eq.ra;meta.main DEJ2000 X-ray detection declination (J2000) (DEC) deg pos.eq.dec;meta.main LX0124 Luminosity in the (0.1-2.4)keV band of the cluster, aperture R500c (LX0124) 1e-07W phys.luminosity;em.X-ray double e_LX0124 Uncertainty on LX0124 (ELX) 1e-07W stat.error double R200c Apparent R200c radius of the galaxy cluster (R200C_DEG) deg phys.angSize float Flux052 Galaxy cluster X-ray flux in the 0.5-2.0keV band (FLUX052) mW.m**-2 phot.flux;em.X-ray double e_Flux052 Uncertainty on Flux052 (EFLUX052) mW.m**-2 stat.error double RE Apparent radial extent of X-ray emission (R_E) arcmin phys.angSize double Flag [1/3] X-ray flux contamination flag (FLAG) (1) meta.code.error int Acor Ratio between the extrapolated and the measured flux (ACOR) stat.fit.omc float Kcor K-correction to compute the flux in the rest-frame 0.1-2.4keV band (KCOR) arith.factor;phot.mag float recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Group FoF group identification number (GROUP_ID) meta.id int
J/A+A/690/A52/tablec4 Clean members of SDSS FoF groups recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Group FoF group identification number (GROUP_ID) meta.id int GalID FoF ID of the galaxy (GALID) meta.id;meta.main int SpecObjID SDSS ID of the galaxy (specobjid) meta.id RAJ2000 Right ascension (J2000) (RA_GAL) deg pos.eq.ra;meta.main indexed DEJ2000 Declination (J2000) (DEC_GAL) deg pos.eq.dec;meta.main indexed zsp Galaxy redshift (ZSPEC) src.redshift double Lr r-band luminosity (L_R) solLum phys.luminosity;em.opt double