J/AJ/154/96ivo://CDS.VizieR/J/AJ/154/96doi:10.26093/cds/vizier.51540096CDSde Carvalho R.R.Ribeiro A.L.B.Stalder D.H.Rosa R.R.Costa A.P.,Moura T.C.2017-12-15T18:24:47Z2017-11-17T14:11:46ZCDS support team

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

cds-question@unistra.frgalaxy-clustersredshiftedx-ray-sourcesWe investigate the dependence of stellar population properties of galaxies on group dynamical stage for a subsample of the Yang catalog. We classify groups according to their galaxy velocity distribution into Gaussian (G) and Non-Gaussian (NG). Using two totally independent approaches, we have shown that our measurement of Gaussianity is robust and reliable. Our sample covers Yang's groups in the redshift range 0.03{<=}z{<=}0.1, with mass {>=}10^14^M_{Sun}_. The new method, called Hellinger Distance, to determine whether a group has a velocity distribution Gaussian or NG is very effective in distinguishing between the two families. NG groups present halo masses higher than the G ones, confirming previous findings. Examining the skewness and kurtosis of the velocity distribution of G and NG groups, we find that faint galaxies in NG groups are mainly infalling, for the first time, into the groups. We show that considering only faint galaxies in the outskirts; those in NG groups are older and more metal-rich than those in G groups. Also, examining the Projected Phase Space of cluster galaxies, we see that bright and faint galactic systems in G groups are in dynamical equilibrium-which does not seem to be the case in NG groups. These findings suggest that NG systems have a higher infall rate, assembling more galaxies that have experienced preprocessing before entering the group.2017AJ....154...96Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/154/96CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)J/ApJ/776/71 : Galaxies in groups along the cosmic web. I. (Carollo+, 2013)J/A+A/542/A36 : Rich clusters from SDSS DR8 (Einasto+, 2012)J/A+A/540/A123 : Galaxy clusters from SDSS DR8 (Einasto+, 2012)J/A+A/425/367 : REFLEX Galaxy Cluster Survey catalogue (Boehringer+, 2004)J/ApJS/129/435 : NORAS galaxy cluster survey. I. (Bohringer+, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/154/96https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/154/96http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/154/96https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/154/96https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/154/96http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/154/96GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/154/96/table1 (Group sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/154/96/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/154/96/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/154/96/table1?GETtext/xml+votable180.050000true240.560216.11130.0055555555555555566/4221 4243 4318 4650 4704 4769 4772 4865 4999 5005 5012 5017 5030 5066 5099 5113 5116 5153 5305 5328 5370 5373 5394 5395 5438 5508 5515 5524 5535 5618 5692 5824 5929 5933 5967 5974 5982 5996 6000 6001 6002 6008 6039 6045 6057 6058 6067 6086 6245 6353 6436 6437 6459 6473 6499 6532 6551 6624 6992 7187 7198 7223 7254 7271 7277 7309 7315 7589 8211 8212 8213 8220 8223 8245 8253 8261 8263 8264 8268 8271 8288 8291 8330 8351 8357 8442 8469 8507 8514 8520 8521 8524 8526 8537 8545 8561 8625 8626 8648 8667 8668 8684 8695 8698 8700 8735 8759 8778 8787 8788 8853 8893 8926 8963 9009 9021 9026 9032 9036 9037 9040 9052 9072 9081 9084 9088 9123 9179 9242 9251 9252 9268 9354 9366 9370 9371 9443 9464 9468 9471 9504 9508 9607 9632 9743 9776 9793 9815 9833 9943 9987 10115 10146 10154 10271 10306 10312 10318 10322 10342 10356 10360 10364 10429 10438 10442 10459 10483 10594 10679 10684 10716 10717 10823 10826 10827 10865 10926 11101 11144 11159 11178 11182 11197 11240 11250 11279 11287 11328 11341 11348 11405 11407 11413 11433 11438 11591 11809 11814 17237 17300 17320 17515 17571 17747 17810 18003 18009 18019 18073 18084 18389 18410 18411 18607 18611 18854 18953 19760 19993 20035 22364 23059 23192 25852 26031 26051 26054 26093 26109 26141 26167 26169 26185 26188 26195 26208 26271 26302 26307 26329 26430 26432 26469 26501 26533 26990 27045 27060 27074 27079 27081 27109 27406 27407 27417 27486 27586 27595 27606 27629 27643 27671 27676 27685 27692 27736 27765 27775 27777 27839 27867 27872 27886 27960 27962 27963 27966 28003 28005 28181 28205 28274 28360 28400 28414 28415 28498 28529 28534 28548 28554 28599 28622 31395 31401 31407 31465 31486 31656 31686 31693 31699 31717 32445 32446 32683https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/154/96?format=asciiOpticalX-raydefaultJ/AJ/154/96/table1Group sampleDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintYang[2/665] Identification number of the galaxy group in Yang et al. 2007ApJ...671..153Ymeta.id;meta.mainintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.main<z>[0.03/0.1] Mean redshift of the group (1)src.redshift;pos.heliocentricfloatlogM200[13.3/15.8] Log of dynamical mass (M_200_) (2)log(solMass)phys.massfloatR200[0.45/2.73] Virial radius (R_200_) (2)Mpcphys.size.radiusfloatN200[20/525] Number of member galaxies within R_200_, down to the limiting magnitude of the catalog, N_R200_ (3)meta.numberintBAX[NY] Group having X-ray counterparts in BAX (http://bax.ast.obs-mip.fr/) (4)meta.codecharN/R[NY] Group having X-ray counterparts in NORAS and/or REFLEX (5)meta.codecharB00Indicates an X-ray counterpart in NORAS within 10'meta.ref.urlintnullableB04Indicates an X-ray counterpart in REFLEX within 10'meta.ref.urlintnullableSDSSDisplay the SDSS DR7 (Adelman-McCarthy et al. 2009, Cat. II/294), and SDSS DR12 (Alam et al. 2015, Cat. V/147) data within 2'meta.ref.urlcharSloanDisplay the online SDSS data for this clustermeta.ref.urlchar