J/ApJS/281/34ivo://CDS.VizieR/J/ApJS/281/34CDSManik S.Bhukta N.Pal S.Mondal S.K.2026-08-11T06:21:24Z2026-08-10T08:40:38ZCDS support team

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

cds-question@unistra.frquasarsradio-sourcesactive-galactic-nucleiradio-galaxiesradio-continuum-emissionintergalactic-mediumgalaxy-classification-systemsGiant radio quasars (GRQs) are radiatively efficient radio-loud active galactic nuclei that propel large-scale radio jets with projected lengths of more than 0.7Mpc. We report the discovery of 53 new GRQs within a redshift range of 0.14-2.38, as well as 316 new nongiant extended radio quasars (NGERQs) within a redshift range of 0.037-3.356, from the TIFR GMRT Sky Survey Alternative Data Release 1. The projected lengths of the new GRQs range from 0.7 to ~2.2Mpc, and the projected lengths of the new NGERQs range from 67 to 695kpc. We found that the spectral indices of GRQs are statistically similar to those of NGERQs. We have also investigated the large-scale environmental and jet asymmetry properties of the combined sample, which includes new sources and previously discovered extended radio quasars (ERQs) from the literature. The results indicate that at least 13% of GRQs and 14% of NGERQs in the sample are located in galaxy groups and cluster environments. Similar lower-bound percentages reside near large-scale filamentary structures, with median projected distances of 5.9 and 4.3Mpc from their respective host quasars. At the current survey noise levels, we find that the projected lengths of ERQs in our sample at z>=1 are smaller than those at z<1. Furthermore, GRQs at z>=1 exhibit greater arm-length asymmetry compared to NGERQs, which may be attributed to an asymmetric environment.2025ApJS..281...34Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/281/34CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/286 : APOGEE-2 DR17 final allStar catalog (Abdurro'uf+, 2022)VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)VII/259 : 6dF galaxy survey final redshift release (Jones+, 2009)V/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)VII/289 : SDSS quasar catalog, sixteenth data release (DR16Q) (Lyke+, 2020)VII/294 : The Million Quasars (Milliquas) catalogue, version 8 (Flesch, 2023)J/AJ/109/14 : Optical spectroscopy of Abell clusters. I. (Owen+ 1995)J/ApJS/129/547 : RBSC-NVSS sample. I. (Bauer+, 2000)J/MNRAS/323/757 : Deep X-Ray Radio Blazar Survey (DXRBS). II. (Landt+, 2001)J/A+A/406/579 : B3-VLA sample. III. Polarisation (Klein+, 2003)J/ApJS/167/1 : Galaxy groups and clusters from SDSS (Berlind+, 2006)J/AJ/131/1 : Binary quasars in the SDSS (Hennawi+, 2006)J/MNRAS/392/19 : The 2dF-SDSS QSO survey (Croom+, 2009)J/ApJS/180/67 : Phot. selection of QSOs from SDSS. II. (Richards+, 2009)J/MNRAS/421/1569 : Properties of 18286 SDSS radio galaxies (Best+, 2012)J/ApJS/201/31 : Emission-line galaxies from SDSS. I. (Ge+, 2012)J/MNRAS/426/851 : Giant Radio Quasars properties (Kuzmicz+, 2012)J/A+A/540/A106 : SDSS-DR8 groups and clusters of galaxies (Tempel+, 2012)J/AJ/146/10 : Spectroscopy of emission-line ICRF2 cand. (Titov+, 2013)J/ApJS/219/39 : QSOs selection from SDSS and WISE (Richards+, 2015)J/ApJ/807/178 : Rich galaxy clusters identified in SDSS-DR12 (Wen+, 2015)J/A+A/598/A78 : The GMRT 150MHz all-sky radio survey (Intema+, 2017)J/other/NewA/58.61 : SDSS DR9 galaxy clusters optical catalog (Banerjee+, 2018)J/AJ/155/189 : LAMOST Quasar Survey: QSOs from DR2&3 (Dong+, 2018)J/ApJS/238/9 : Giant radio sources known to date (Kuzmicz+, 2018)J/MNRAS/475/343 : 2MASS, WISE & SuperCOSMOS clusters of gal. (Wen+, 2018)J/ApJS/243/21 : Broad-line AGN from SDSS-DR7 (Liu+, 2019)J/A+A/622/A1 : LOFAR Two-metre Sky Survey DR1 sources (Shimwell+, 2019)J/A+A/628/A69 : LOFAR 143MHz images of 3C 236 (Shulevski+, 2019)J/ApJS/240/6 : LAMOST Quasar Survey: Data Releases 4 and 5 (Yao+, 2019)J/ApJ/872/134 : A uniformly selected, all-sky, opt. AGN cat. (Zaw+, 2019)J/A+A/635/A5 : LoTSS giant radio galaxies. I. (Dabhade+, 2020)J/A+A/642/A153 : SAGAN. I. Multi-wavelength studies (Dabhade+, 2020)J/other/Galax/9.99 : Giant Radio Galaxies in RACS (Andernach+, 2021)J/ApJS/253/3 : Sunyaev-Zel'dovich gal. clusters with ACT (Hilton+, 2021)J/ApJS/253/25 : Giant radio QSOs from SDSS, FIRST & NVSS (Kuzmicz+, 2021)J/MNRAS/500/1003 : Redshifts for gal. in the HSC-SSP and unWISE (Wen+, 2021)J/MNRAS/516/372 : Radio galaxies & clusters from 150GHz TGSS (Bhukta+, 2022)J/A+A/659/A166 : Catalogue of Cosmic Filaments (Carron Duque+, 2022)J/A+A/668/A64 : GRG-J2233+1315 GMRT and LOFAR images (Dabhade+, 2022)J/A+A/661/A2 : Galaxy clusters and groups in eFEDS (Liu+, 2022)J/A+A/660/A59 : SAGAN III. Giant radio quasars (Mahato+, 2022)J/A+A/659/A1 : LOFAR Two-metre Sky Survey (LoTSS) DR2 (Shimwell+, 2022)J/MNRAS/515/2032 : LoTSS Bootes Deep Field Giant Radio Gal. (Simonte+, 2022)J/A+A/674/A41 : Composite quasar spectra from Gaia DR3 (Gaia Coll., 2023)J/ApJS/265/25 : LAMOST Quasar Survey DR6-DR9 (Jin+, 2023)J/A+A/672/A163 : Properties of the 2060 giant radio galaxies (Oei+, 2023)J/A+A/691/A185 : GRG constraints from ML and Bayesian inf. (Mostert+, 2024)J/A+A/686/A137 : Cosmic Web properties for radio galaxies (Oei+, 2024)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/281/34https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/281/34http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/281/34https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/281/34https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/281/34http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/281/34GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/281/34/table3 (Radio properties of giant radio quasars (GRQs))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/281/34/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/281/34/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/281/34/table3?GETtext/xml+votable180.050000true0.2129061111.23650.005555555555555556Cone search capability for table J/ApJS/281/34/table4 (Radio properties of nongiant extended radio quasars (NGERQs))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/281/34/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/281/34/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/281/34/table4?GETtext/xml+votable180.050000true0.803015-4.457863060.005555555555555556Cone search capability for table J/ApJS/281/34/table5 (Large-scale environmental properties based on the neighbouring galaxy groups and clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/281/34/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/281/34/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/281/34/table5?GETtext/xml+votable180.050000true8.018.88330.005555555555555556Cone search capability for table J/ApJS/281/34/table6 (Large-scale environmental properties based on the neighbouring cosmic filamentary structures)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/281/34/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/281/34/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/281/34/table6?GETtext/xml+votable180.050000true0.258.33330.0055555555555555566/9 28 32 675 685 2074 2081 2129 2134 2166 2226 2256 2562 2584 4101-4102 4106 4150 4197 4208 4217 4229 4242 4297 4299 4309 4422 4434 4436 4451 4463 4485 4525 4539 4551 4576 4601 4615 4652 4665 4737 4761 4813 4819 4826 4837 4857 4865 4873 4888 4941 4945 4950 4954 4959 5016 5123 5165 5171 5194 5207 5231 5240 5257 5284 5289 5330 5349 5366-5367 5386 5397-5398 5405 5430 5434 5465-5466 5470 5473-5474 5507 5537 5545-5546 5627 5668 5671 5685 5712 5731 5760 5798 5817 5821 5826 5842 5885 5920 5927 5931 5943-5944 5971 6007 6019 6027 6029 6044 6052 6107 6111 6242 6250 6267 6352 6390 6392 6413 6461 6469 6484 6496 6504 6529 6532 6534 6537 6570 6583 6587 6590 6618 6623 6628 6637 6640 6651 6929 6994 7007 7011 7109 7207 7225 7236-7238 7244 7265 7270 7273 7280 7300 7316 7318 7355 7368 7383 7386 7397 7416 7464 7479 7491-7492 7525 7680 7754 8317 8353 8373 8440 8543 8565 8597 8607 8629 8657 8677 8687 8727 8776 8816 8823 8855 8867 8881 8894 8907 8910 8927 8930 9004 9022 9050 9108 9115 9118 9120 9130 9158 9181 9185 9205 9322 9324 9341 9350 9354 9356-9357 9359 9402 9407 9490 9496-9497 9628 9794 9823 9892 9939 9966 9973 9999 10029 10032 10035 10042 10136 10153 10160 10246 10300 10316 10337 10373-10374 10400 10422 10476 10483 10545 10584-10585 10591 10696 10772 10775 10786 10804 10829 10863 10897 10900 10916 11001 11013 11022 11032-11033 11043-11044 11049-11050 11066 11083 11099 11102 11109 11149 11207 11212 11217 11219 11227 11274-11275 11287 11297 11324-11325 11329 11381 11393 11406 11409 11412 11434 11444 11473 11658 11780 11826 11839 12639 13312 13324 13330 13385 13418 17370 17516 17526 17564 17624 17692 17700 17722-17723 17729 17782 17835-17836 17844 17877 17904 17928-17929 17950 17963 17974 17998 18011 18014-18015 18082 18174 18177 18194 18199 18202 18313 18315 18323 18329 18341 18354 18362 18384 18637 18640 18657 18852 18932 18955 18957 19067 19088 19091 19097 19142 19182 19345 19400 19517-19518 19550 19567 19636 19651 19673 19680 19726 19808 19810 19859 19874 19928 19938 19968 20124 20214 20302 20335 21848 21854 21874 21877 21979 23046 23056 23147 23186 23192 23195 23232 23266 25546 25835 25839 25843 25852 25934 25936 25945 26022 26069 26155 26176 26238 26278 26318 26346 26354 26432 26437 26441 26444 26453 26467 26511 26533 26548 26603 26857 26866 26889 26921 26956 27009 27021 27075 27114 27131 27186 27248 27279 27316 27334 27382 27423 27434 27447 27478 27486 27580 27611 27625 27741 27774 27832 27855 27861 27887 27971-27972 27974 27993 28018 28020 28031-28032 28117 28123 28153 28155 28164 28218 28245 28251 28256 28293 28302 28332 28419 28429 28461 28529 28545 28559 28576 28591 28623 28636 28654 28668 31340 31399 31476 31478 31483 31545 31617 31728 31737 32427 32435 32437 32480 36814 36817 36842 40830 40934 40952 40954-40955 44668 45006 49015 491069.939104750406538e-26 1.987820871092403e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/281/34?format=asciiOpticalRadiodefaultJ/ApJS/281/34/table3Radio properties of giant radio quasars (GRQs)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintADisplay the asymmetry properties for this source (link to Table 7)meta.ref.urlintnullableSeq[1/53] Serial numbermeta.idintNameName of giant radio quasar (JHHMMSS+DDMMSS)meta.id;meta.maincharRAJ2000Right ascension of host galaxy (J2000)degpos.eq.ra;meta.mainDEJ2000[-8/60] Declination of host galaxy (J2000)degpos.eq.dec;meta.mainS150[0.09/3.7] Integrated radio flux density of GRQ at 150MHzJyphot.flux.density;em.radio.100-200MHzfloate_S150[0.01/0.4] Uncertainty in S150Jystat.error;phot.flux.density;em.radio.100-200MHzfloatS1400[15/434]? Integrated radio flux density of GRQ at 1.4GHzmJyphot.flux.density;em.radio.750-1500MHzfloatnullablee_S1400[0.7/120.1]? Uncertainty in S1400mJystat.error;phot.flux.density;em.radio.750-1500MHzfloatnullablealpha[0.48/1.64] Integrated spectral index of sourcespect.indexfloatScore[0.8/40.5]? Core radio flux density at 1.4GHzmJyphot.flux.density;em.radio.750-1500MHzfloatnullablee_Score[0.1/0.2]? Uncertainty in ScoremJystat.error;phot.flux.density;em.radio.750-1500MHzfloatnullableF3[0.9/30]? Core radio flux density of GRQ at 3GHzmJyphot.flux.density;em.radio.3-6GHzfloatnullablee_F3[0.19/1.1]? Uncertainty in F3mJystat.error;phot.flux.density;em.radio.3-6GHzfloatnullableaCore[-1.35/0.5]? Core spectral index of GRQspect.indexfloatnullableLAS[82/308] Linear Angular Sizearcsecphys.angSizeintz[0.14/2.4] Redshift of host galaxysrc.redshiftfloatr_zReference for z (G1)meta.ref;src.redshiftcharLS[0.7/2.2] Projected linear size of GRQMpcphys.sizefloatlogP150[25.8/27.9] Log of total radio power at 150MHzlog(W.Hz**-1)phys.luminosity;em.radio.100-200MHzfloatlogP1400[25/27]? Log of total radio power at 1.4GHzlog(W.Hz**-1)phys.luminosity;em.radio.750-1500MHzfloatnullablelogPcore[23.6/26.3]? Log of radio power of core at 1.4GHzlog(W.Hz**-1)phys.luminosity;em.radio.750-1500MHzfloatnullableCDF[0.02/2.4]? Core Dominance Factor at 5GHz (1)phot.flux;arith.ratio;em.radio.3-6GHzfloatnullableIDPosition-based (JHHMM+DDMM) name as in Tables 5-7; column added by CDSmeta.idcharTGSSDisplay data from TGSS ADR1 (Intema+ 2017, J/A+A/598/A78) within 42"meta.ref.urlcharJ/ApJS/281/34/table4Radio properties of nongiant extended radio quasars (NGERQs)e_S1400[0.5/378]? Uncertainty in S1400mJystat.error;phot.flux.density;em.radio.750-1500MHzfloatnullablealpha[-0.14/2] Integrated spectral index of sourcespect.indexfloatScore[1/735]? Core radio flux density at 1.4GHzmJyphot.flux.density;em.radio.750-1500MHzfloatnullablee_Score[0.08/1]? Uncertainty in ScoremJystat.error;phot.flux.density;em.radio.750-1500MHzfloatnullableF3[0.78/1065]? Core radio flux density of NGERQ at 3GHzmJyphot.flux.density;em.radio.3-6GHzfloatnullablee_F3[0.17/2]? Uncertainty in F3mJystat.error;phot.flux.density;em.radio.3-6GHzfloatnullableaCore[-3/0.6]? Core spectral index of NGERQspect.indexfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintADisplay the asymmetry properties for this source (link to Table 7)meta.ref.urlintnullableSeq[1/316] Serial numbermeta.idintNameName of giant radio quasar (JHHMMSS+DDMMSS)meta.id;meta.maincharRAJ2000Right ascension of host galaxy (J2000)degpos.eq.ra;meta.mainDEJ2000[-9.1/67] Declination of host galaxy (J2000)degpos.eq.dec;meta.mainS150[0.05/39] Integrated radio flux density of NGERQ at 150MHzJyphot.flux.density;em.radio.100-200MHzfloate_S150[0.006/4] Uncertainty in S150Jystat.error;phot.flux.density;em.radio.100-200MHzfloatS1400[9/7548]? Integrated radio flux density of NGERQ at 1.4GHzmJyphot.flux.density;em.radio.750-1500MHzfloatnullableLAS[18/315]? Linear Angular Sizearcsecphys.angSizeintnullablez[0.03/3.4] Redshift of host galaxysrc.redshiftfloatr_zReference for z (G1)meta.ref;src.redshiftcharLS[0.07/0.7] Projected linear size of NGERQMpcphys.sizedoublelogP150[24.2/28.3] Log of total radio power at 150MHzlog(W.Hz**-1)phys.luminosity;em.radio.100-200MHzfloatlogP1400[24/27.5]? Log of total radio power at 1.4GHzlog(W.Hz**-1)phys.luminosity;em.radio.750-1500MHzfloatnullablelogPcore[22/27]? Log of radio power of core at 1.4GHzlog(W.Hz**-1)phys.luminosity;em.radio.750-1500MHzfloatnullableCDF[0.01/21]? Core Dominance Factor at 5.0GHzphot.flux;arith.ratio;em.radio.3-6GHzfloatnullableIDPosition-based (JHHMM+DDMM) name as in Tables 5-7; column added by CDSmeta.idcharTGSSDisplay data from TGSS ADR1 (Intema+ 2017, J/A+A/598/A78) within 42"meta.ref.urlcharJ/ApJS/281/34/table5Large-scale environmental properties based on the neighbouring galaxy groups and clustersTypeObject type (1)src.classchar_RAPositions from names (right ascension part)degpos.eq.ra;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/136] Serial numbermeta.idintIDPosition-based (JHHMM+DDMM) namemeta.id;meta.maincharz[0.037/1.3] Redshift of host galaxysrc.redshiftfloatN0.5cl[0/3] Number of neighbouring galaxy groups and clusters within 0.5Mpcmeta.numberintN1cl[0/3] Number of neighbouring galaxy groups and clusters within 1Mpcmeta.numberintN2cl[0/5] Number of neighbouring galaxy groups and clusters within 2Mpcmeta.numberintN5cl[0/19] Number of neighbouring galaxy groups and clusters within 5Mpcmeta.numberintN10cl[1/31] Number of neighbouring galaxy groups and clusters within 10Mpcmeta.numberintzetacl5-10[0/1] Ratio of number of nearby galaxy groups and clusters within 5 to 10Mpcstat.fit.omcfloatdnncl[0/10] Euclidean distance to nearest galaxy group or clusterMpcpos.distancefloatdmeancl[0.59/10] Average euclidean distance to nearby galaxy groups or clusters within 10MpcMpcpos.distance;stat.meanfloatsigmaz[0/0.005] Redshift difference between host quasar and nearby galaxy groups/clusterssrc.redshift;arith.difffloatvrel[0/1065] Radial component of relative velocity of host quasar with respect to galaxy groups/clusterskm/sphys.veloc;arith.difffloat_DEPositions from names (declination part)degpos.eq.dec;meta.mainJ/ApJS/281/34/table6Large-scale environmental properties based on the neighbouring cosmic filamentary structuresrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/133] Serial numbermeta.idintIDPosition-based (JHHMM-DDMM) namemeta.id;meta.maincharz[0.05/1.9] Redshift of host galaxysrc.redshiftdoubleN1cf[0/7] Number of nearby random points of filamentary structure within 1Mpcmeta.numberintN2cf[0/17] Number of nearby random points of filamentary structure within 2Mpcmeta.numberintN5cf[0/18] Number of nearby random points of filamentary structure within 5Mpcmeta.numberintN10cf[0/21] Number of nearby random points of filamentary structure within 10Mpcmeta.numberintconcf5-10[0/1]? Ratio of number of nearby random points of filamentary structure within 5 to 10Mpcstat.fit.omcfloatnullablednncf[0.27/18.2] Euclidean distance to nearest random point of filamentary structureMpcpos.distancefloatvarrho[1.56/2.8]? Mean density of IGM within 10Mpcphys.density;stat.meanfloatnullablevarphi[2.38/358]? Average angle formed by random points of neighbouring filaments within 10Mpc (1)degpos.posAng;stat.meanfloatnullableTypeObject type (2)src.classchar_RAPositions from names (right ascension part)degpos.eq.ra;meta.main_DEPositions from names (declination part)degpos.eq.dec;meta.mainJ/ApJS/281/34/table7Asymmetry properties of all the ERQs; updated version by the authorrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRadDisplay the radio properties for the new radio quasars (link to Tables 3 and 4)meta.ref.urlintnullableSeq[1/348] Serial numbermeta.idintIDName of GRQ (JHHMM+DDMM)meta.id;meta.maincharQ[1.0/2.92] Arm-length ratiosrc.morph.paramfloatF[0.06/11.94] Flux density ratio (1)phot.flux.density;em.radiofloatX[0.0/0.5] Fractional separation distancepos.distance;arith.ratiofloatf-rho[0.01/2.7] IGM density asymmetry parametersrc.morph.paramfloatTypeObject type (2)src.classchar