J/other/RAA/19.1ivo://CDS.VizieR/J/other/RAA/19.127doi:10.26093/cds/vizier/dx/bjkbchCDSLiu Y.-X.Xu H.-G.Zheng D.-C.Li W.-T.Zhu Z.-H.Ma Z.-X.Lian X.-L.2026-02-10T20:07:35Z2020-03-27T09:28:54ZCDS support team

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

cds-question@unistra.frradio-galaxiesredshiftedphotometrygalaxy-classification-systemsWe study the environment of radio galaxies with different morphological types using the Proctor sample, which was built from the Faint Images of the Radio Sky at Twenty-Centimeters (FIRST) survey archive. Among the 15 radio galaxy types classified by Proctor, 199 C-shaped (i.e., wide- or narrow-angle tail) and 203 S-shaped (i.e., S- or Z-shaped) sources are selected in this work, which are located in the redshift range of 0.02<z<1, because these two subsamples are relatively larger than the other subsamples in the Proctor sample. By cross-matching these radio galaxies with the optical sources drawn from the Sloan Digital Sky Survey (SDSS) database and counting the SDSS sources with an r-band absolute magnitude brighter than -19 located within a 0.5Mpc distance around each source (i.e., the richness), we find that the fraction of C-shaped sources with a richness above 10 is larger than that of S-shaped sources. We have also correlated the radio galaxies in our sample with the brightest cluster galaxies (BCGs) defined in the NASA/IPAC Extragalactic Database (NED), and infer that the C-shaped sources are more likely to be BCGs than the S-shaped sources. These results support the idea that C-shaped radio galaxies often reside in a richer environment than radio galaxies with other morphological types.2019RAA....19..127Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/RAA/19.127CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/92 : The FIRST Survey Catalog, Version 2014Dec17 (Helfand+, 2015)V/147 : The SDSS Photometric Catalogue, Release 12 (Alam, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/RAA/19.127https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/RAA/19.127http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/RAA/19.127https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/RAA/19.127https://vizier.iucaa.in/viz-bin/votable?-source=J/other/RAA/19.127http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/RAA/19.127GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/RAA/19.127/table1 (The sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/19.127/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/19.127/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/19.127/table1?GETtext/xml+votable180.050000true0.87804170.46555560.0055555555555555566/4119 4172 4218 4226 4241 4277 4307 4309 4315 4317 4321 4345 4394 4399 4407 4432 4451 4461 4473 4508 4513 4563 4566 4579-4580 4678 4686 4724 4744 4768 4845 4865 4937 4978 5077 5099 5109-5110 5120 5124 5161 5168 5179 5199 5260 5278 5285 5289 5328 5339 5352 5355 5365 5386 5400 5438 5444 5496 5514 5549 5567 5569 5596 5618 5634 5675 5722 5755 5773 5808 5813 5830 5839 5845 5855 5888-5889 5946 5963 5987 6018 6065 6076 6097 6105 6127 6168 6171 6198 6338 6353 6355 6363 6385 6425 6449 6506 6609 6744 6933 7174 7195 7225 7228 7288 7307 7312 7334 7354-7355 7426 7481 7563 8220 8230 8255 8335 8343 8362 8372 8428 8464 8474-8475 8478 8486 8508 8526 8532 8537-8539 8572 8582 8596 8709 8733 8744 8804 8815 8821 8846 8866 8897 8915 9018 9021 9023 9045 9047 9071 9075 9168 9172 9180 9193 9200 9208 9224 9262 9266 9279 9316 9357-9358 9398 9413 9421 9460 9501 9619 9651 9742 9750 9778 9794 9817 9820 9842 9856 9862 9879 9920 9925 9990 10009 10031 10063 10074 10105 10137 10151 10158 10255 10274 10282 10316 10320 10330 10345 10364 10387 10411 10413 10463 10465 10576 10585 10591-10592 10598 10603-10604 10610 10641 10663 10674 10776 10782 10809 10859 10872 10881 10899 10936 10940 10951 10954 10973 10997 11022 11051 11053 11091 11096-11098 11102-11103 11126 11137 11142 11180 11182 11192 11211 11241 11288 11324 11362 11388 11414 11438 11440 11461 11489 11533 11570 11778 11793 11806 11825 17238 17715 17722 18011 18020-18021 18069 18091 18096 18176-18177 18588 18775 18800 18842 21842 21849 21880 21997 22495 23206 23213 25585 25821 25929 26022 26100 26238 26322 26335 26427 26429 26441 26458 26482 26490 26501 26527 26534 26541 26545 26551 26556 26591 26621 26623 26937 26958 26990 26996 27051 27054 27058 27121 27188 27247 27261 27279 27323 27328 27340 27345 27377 27390 27456 27488-27489 27507 27563 27601 27607 27622 27642 27656 27661 27669 27672 27686 27725 27740 27765 27793 27811 27842 27859 27929 27958 27962 27975 27980 27989 28004 28040 28065 28075 28143 28147 28225 28269 28271 28273 28424-28425 28510 28584 28604 28612 28619 28660 28671 31354 31392 31417 31436 31633 31655 32412 32486 32510 32681 32686 36766 36789 491012.85864675833786e-19 3.5010283109654867e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/RAA/19.127?format=asciiOpticalRadiodefaultJ/other/RAA/19.127/table1The samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameFIRST name (JHHMMSS.s+DDMMSS)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainzRedshiftsrc.redshiftdoublen_z[SP] (S)pectroscopic or (P)hotometric redshiftmeta.notecharMType[CS] Morphological type (1)src.morph.typecharrmagSDSS r magnitudemagphot.mag;em.opt.RfloatrMAGAbsolute r magnitudemagphys.magAbsfloatlogL1.4GRadio luminosity at 1.4GHzlog(W.Hz**-1)phys.luminosity;em.radiofloatExtentRadio source extentMpcphys.angSizefloatNRichness, N^-19^_0.5 (2)phot.mag;em.IR.8-15umintfcCorrection factorarith.factor;phot.fluxfloatGClstrCatalogs of the cross-matched BCGsmeta.notecharFirst14link to First catalog, Cat. VIII/92meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar