J/MNRAS/436/275ivo://CDS.VizieR/J/MNRAS/436/275doi:10.26093/cds/vizier.74360275CDSWen Z.L.Han J.L.2024-08-07T20:11:59Z2014-11-25T12:31:00ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxy-classification-systemsDynamical state of galaxy clusters is closely related to their observational properties in X-ray, optical and radio wavelengths. We develop a method to diagnose the substructure and dynamical state of galaxy clusters by using photometric data of Sloan Digital Sky Survey (SDSS). To trace mass distribution, the brightness distribution of member galaxies is smoothed by using a Gaussian kernel with a weight of their optical luminosities. After deriving the asymmetry, the ridge flatness and the normalized deviation of the smoothed optical map, we define a relaxation parameter, {Gamma}, to quantify dynamical state of clusters. This method is applied to a test sample of 98 clusters of 0.05<z<~0.42 collected from literature with known dynamical states and can recognize dynamical state for relaxed ({Gamma}>=0) and unrelaxed ({Gamma}<0) clusters with a success rate of 94 percent. We then calculate relaxation parameters of 2092 rich clusters previously identified from the SDSS, of which 28 percent clusters are dynamically relaxed with {Gamma}>=0. We find that the dominance and absolute magnitude of the brightest cluster galaxies closely correlate with dynamical states of clusters. The emission power of radio haloes is quantitatively related to cluster dynamical state, beside the known dependence on the X-ray luminosity.2013MNRAS.436..275Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/436/275CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/183/197 : Galaxy clusters identified from the SDSS-DR6 (Wen+, 2009)http://www.sdss3.org/dr8 : SDSS DR8 Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/436/275https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/436/275http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/436/275https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/436/275https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/436/275http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/436/275GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/436/275/table2 (Relaxation parameters of 2092 rich clusters in the SDSS)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/436/275/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/436/275/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/436/275/table2?GETtext/xml+votable180.050000true0.0523810.635090.0055555555555555565/422 2254 4198 6/0-1 3 13-14 32 35 48 85 110 130 136 260 277 291 303 311 391 402-403 521 566-567 603 616 627-628 657 663 670 679 702 705 708 727 742 752 759 765 825 902-903 921 925 935-936 986 994 999 1011 1028 1402 1584 1680 1682 1699 2010 2053 2075 2090 2103 2120 2160 2164 2167-2168 2172 2179 2183 2187-2188 2198 2213 2221 2231 2251 2257 2278 2284-2285 2300 2305 2389 2420 2511 2516 2580 2582 2609 2615 2617 2629 2650 2661 2663-2664 2672 2676 2678 2821 2836 2841 3080 4106 4108 4110 4119 4130 4137 4140 4167 4175-4177 4180-4181 4203 4206 4213 4220 4225 4230-4231 4233 4237 4260 4266 4268 4272 4274 4292 4305-4307 4320 4323 4327 4338 4351 4363 4372 4385 4389 4395 4400 4402 4404 4406 4417-4418 4427-4429 4442-4444 4451 4454-4455 4461 4466-4467 4474 4476 4490 4507 4548-4549 4552 4561-4562 4568 4577 4579 4584 4608 4610 4637-4639 4656 4670 4672 4692 4713 4720 4726 4728 4748 4809 4812 4816 4827 4831 4851 4857 4860 4863 4879 4905 4907 4940 4946-4947 4966 4976 5010 5013 5015-5016 5030 5034-5035 5042 5048 5050 5059 5061 5067 5079 5086 5099-5100 5102-5103 5112 5116 5129 5142 5155 5161 5175 5179 5195 5226 5232 5245 5250 5259 5262 5268 5282 5287-5288 5299 5301-5302 5307 5320 5326-5327 5334 5339 5346 5349 5377 5383 5403 5412 5451 5454-5455 5458 5466 5468 5481 5483-5484 5507 5514 5527 5533 5537-5538 5541 5544 5562-5563 5567 5580 5590 5597 5603 5618 5622 5657 5665 5688-5689 5701 5715 5753 5759 5764 5770 5773 5776 5798 5825 5852 5860 5865 5877 5881 5884 5887 5894 5901 5931 5936 5955 5978 5987-5989 6003 6011 6019 6022 6024 6047 6088 6094 6110-6111 6137 6145 6189 6202 6207 6212 6215 6237 6265 6287 6292 6304 6337-6339 6342 6344 6347 6351 6355 6359 6361 6375 6383 6385 6390-6391 6393 6403 6421-6422 6428-6429 6431-6432 6434 6436 6441 6444 6451 6453 6466 6468 6474 6490 6499 6522 6524 6534 6544-6546 6553 6593 6606 6608-6609 6611 6614 6622 6628 6685-6686 6723 6743 6857 6912-6913 7160 7174 7209 7221 7239 7242-7244 7264 7271 7277 7282 7310 7318 7321 7334 7347 7362 7382 7387-7388 7395 7404 7408 7415 7433 7441 7446 7448-7449 7457 7461-7462 7513 7516 7566 7579 7645 7676 7756 7768-7769 7777 7781 7834 7843 8026 8134 8139 8204 8212 8220-8221 8223 8228 8231 8234 8247 8249 8253 8258 8260 8344-8345 8356 8379 8381 8390-8391 8393 8400 8407 8412 8415 8418 8422 8428 8438 8444 8446-8447 8451-8452 8458 8461 8478-8479 8483 8507 8515 8547 8570 8584 8601 8609 8614 8629 8634 8654 8662 8678 8689 8705 8719 8724 8735 8739-8740 8744 8749 8757 8766 8771 8775 8777 8787-8789 8797 8802 8811 8818 8822 8826 8828 8832 8839 8848 8869 8875 8881 8902 8908 8911 8913 8918 8923 8937 8947 8954-8955 8961 8963 8969-8970 8972-8973 8994 9020-9021 9036-9037 9048 9050 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13364 13380 13384 13386-13387 13390-13391 13406 13444 13458 13465 13560 13568 13590 13658 13660 15896-15897 15900 15920 16009 16032 16270 16281 16638 16702 16721 16781-16782 16785 16788-16789 16806 16999 17048 17214 17237 17243 17247 17256 17260 17273 17275 17300 17303 17307 17317 17328 17332-17333 17340 17342 17348 17357 17389 17395 17487 17491 17499 17506-17507 17514 17519 17521 17530 17532-17533 17558 17565 17577 17594 17598 17600 17603-17604 17612 17614 17628 17630 17666 17676-17678 17684 17693 17697 17709 17712 17718 17724 17728-17729 17732-17733 17741 17746-17747 17749 17752 17768 17787 17799-17800 17805 17809 17818 17840-17841 17843 17848 17860 17863 17865 17867 17890 17899 17901 17908 17937 17974 17984 17993 18005-18006 18008 18016 18018 18021 18026 18032 18043-18045 18054 18060 18074 18076 18078 18085 18087 18090 18101 18110 18122 18129 18133-18134 18142 18146 18163 18170 18175 18202-18203 18217 18220 18231 18240 18299 18302 18304 18326-18327 18333 18336 18370 18372 18381-18382 18388 18390-18391 18393 18401-18402 18412 18420 18599 18603 18607 18610 18612 18614 18636 18638 18642 18644 18654 18668 18671 18683 18692 18694 18700-18701 18703 18725 18728 18742 18746-18747 18749 18754 18756 18764 18778-18779 18782 18800 18807 18812 18818 18824-18825 18827 18835 18839 18845 18854 18868 18880 18885 18903 18905 18910-18911 18916 18919 18923 18927 18935 18947-18948 18952 18954 18966 18974 18978 18999 19004 19052 19054-19055 19087-19089 19094 19097 19101 19111 19121 19124 19140 19145 19151 19154 19161 19204 19224 19228 19231 19237 19246 19249 19262 19273 19280 19294-19296 19312 19314-19315 19325 19327 19331-19332 19334 19348 19350 19378 19383-19384 19425 19444 19451 19461-19462 19464 19475 19482 19485 19495 19501 19509 19523 19527-19529 19541-19542 19550-19551 19553 19555-19556 19558 19563 19566-19567 19572-19573 19586 19592-19594 19601-19602 19604 19608 19620-19621 19625 19632-19633 19645 19648 19654 19657 19664 19684 19695-19696 19700-19701 19712 19714 19726 19731 19734 19738 19745-19747 19752-19753 19763 19774 19776 19799 19816 19820 19828 19840 19846 19858 19862 19872 19883 19895 19900 19905-19906 19909 19912 19915 19925 19927 19929-19930 19934-19935 19943 19954 19956-19957 19960 19971-19972 19976-19977 19983 19998 20012-20013 20015-20016 20026-20027 20041-20042 20062 20067 20069 20075 20077 20083-20086 20091 20097 20100 20106 20108 20112 20114-20115 20124-20125 20128 20132 20134 20145-20146 20148 20170 20180 20191 20194 20199-20200 20202 20206 20219-20220 20227 20251 20266 20279 20290 20292 20297 20302 20310 20323 20330 20335 20342 20347 20352-20353 20361-20362 20371 20375 20384 20386-20387 20393 20396 20409 20418 20430 20432 20434 20436 20442 20448 20451 20472 21766 21783 21823 21828 21846 21855 21870-21871 21875 21905 21914 21929 21953 21968-21969 21971 21976 21987 21991 21994 22007 22012 22107 22179 22354 22374 22461 22479 22490-22491 22501 22514 22664 22753 22755-22756 22801 22820 22830 22835 22842 22882 22887 22898 22917 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27041 27070 27075 27077 27081 27087 27101 27107-27108 27125 27206 27214 27224 27238 27248 27255 27257-27258 27269 27279 27283 27288 27292 27300 27302-27303 27321 27324 27327 27333 27340 27342 27379 27386-27387 27402 27406 27417 27428 27444 27450 27456 27466-27467 27471 27473 27492 27504 27533 27542 27550 27554 27558 27564 27583 27586-27588 27590 27595 27598-27599 27607 27610 27622-27623 27634-27635 27649 27652 27660-27661 27672 27677 27694 27706 27709-27711 27717 27724-27725 27736 27738 27740-27742 27744 27765 27774 27777 27794 27799 27805 27816 27828 27846-27847 27865-27866 27896-27897 27944 27946 27948 27950 27962 27964-27966 27995 28009 28022 28047 28052-28054 28057 28059 28064 28069 28082 28085 28103 28128 28142 28153 28159 28164 28174 28176-28177 28181 28197 28202 28205 28210-28211 28214 28229 28234 28237 28255 28265 28268-28269 28271-28272 28274 28277 28283 28291 28293 28329-28330 28352 28356 28367 28371 28377 28381 28402 28406 28423 28429-28431 28437 28441 28459-28460 28471 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49104-49105https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/436/275?format=asciiOpticaldefaultJ/MNRAS/436/275/table2Relaxation parameters of 2092 rich clusters in the SDSSRL*[50/220] Cluster richnesssrc.class.richnessfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWHLCluster name (JHHMMSS.s+DDMMSS)meta.id;meta.maincharRAJ2000BCG right ascension (J2000) (1)degpos.eq.ra;meta.mainDEJ2000BCG declination (J2000) (1)degpos.eq.dec;meta.mainz[0.05/0.42] photometric or spectroscopic redshiftsrc.redshiftfloatf_z[0/1] 0 for photometric, 1 for spectroscopic redshiftmeta.codeintrmag[13/20] BCG r magnitude (1)magphot.mag;em.opt.RfloatR200[1.2/2.3] Radius r_200_ of clusterMpcphys.size.radiusfloatN200[30/178] Number of member galaxies within R200meta.numberintGammaRelaxation parameter {Gamma} (2)stat.fit.paramfloate_Gammarms uncertainty on Gammastat.errorfloatSloanDisplay the SDSS data for this clustermeta.ref.urlchar