J/MNRAS/466/921ivo://CDS.VizieR/J/MNRAS/466/921doi:10.26093/cds/vizier.74660921CDSCoziol R.Andernach H.Torres-Papaqui J.P.Ortega-Minakata R.A.,Moreno del Rio F.2024-08-17T20:18:05Z2017-03-07T10:23:50ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiquasarsradio-sourcessurveysTo better constrain the hypotheses proposed to explain why only a few quasars are radio loud (R_L_), we compare the characteristics of 1958 nearby (z<=0.3) SDSS (Sloan Digital Sky Survey) quasars, covered by the FIRST (Faint Images of the Radio Sky at Twenty Centimeters) and NVSS (NRAO VLA Sky Survey) radio surveys. Only 22 per cent are R_L_ with log(L_1.4GHz_)>=22.5W/Hz, the majority being compact (C), weak radio sources (WRS), with log(L_1.4GHz_)<24.5W/Hz. 15 per cent of the RL quasars have extended radio morphologies: 3 per cent have a core and a jet (J), 2 per cent have a core with one lobe (L), and 10 per cent have a core with two lobes (T), the majority being powerful radio sources (PRS), with log(L_1.4GHz_)>=24.5W/Hz. In general, RL quasars have higher bolometric luminosities and ionization powers than radio-quiet (RQ) quasars. The WRS have comparable black hole (BH) masses as the RQ quasars, but higher accretion rates or radiative efficiencies. The PRS have higher BH masses than the WRS, but comparable accretion rates or radiative efficiencies. The WRS also have higher FWHM_{[OIII]} than the PRS, consistent with a coupling of the spectral characteristics of the quasars with their radio morphologies. Inspecting the SDSS images and applying a neighbour search algorithm reveal no difference between the RQ and RL quasars of their host galaxies, environments, and interaction. Our results prompt the conjecture that the phenomenon that sparks the RL phase in quasars is transient, intrinsic to the active galactic nuclei, and stochastic, due to the chaotic nature of the accretion process of matter on to the BHs.2017MNRAS.466..921Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/466/921CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)VII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010)VIII/92 : The FIRST Survey Catalog, Version 2014Dec17 (Helfand+ 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/466/921https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/466/921http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/466/921https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/466/921https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/466/921http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/466/921GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/466/921/table1 (Optical and radio data for 1958 quasars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/466/921/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/466/921/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/466/921/table1?GETtext/xml+votable180.050000true0.2590833-10.39080560.0055555555555555565/6962 6/0 2 1703 4098-4099 4101 4105 4107 4121 4129 4135-4136 4153 4155 4172 4177-4178 4181 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5431-5432 5436-5438 5442-5443 5452 5454 5466-5467 5469 5473 5475 5481 5483-5486 5494 5496 5498-5499 5517 5527 5530-5532 5547 5564 5567-5568 5570-5572 5576 5580 5584-5585 5593-5594 5599 5602 5609 5613 5619 5622 5627-5628 5632 5635 5642 5644 5647 5662 5670-5671 5675 5680 5685 5687-5688 5691 5697 5711 5733 5736 5739 5744 5746 5748 5753 5760 5766-5767 5769 5772 5774 5776 5802-5804 5807 5816-5817 5820-5821 5825 5831 5844 5851 5855 5859-5860 5864-5865 5870 5876 5879 5881 5885 5895 5904 5913 5922 5924 5928 5932 5940-5941 5947 5955 5957 5964 5972 5985 5988 5992 6001 6004-6005 6010-6011 6015 6021 6028 6030 6032 6035 6039 6044 6054 6057 6061 6074 6083 6097 6103 6106-6107 6109 6112-6113 6119-6121 6124 6129 6138-6139 6161 6167 6196 6208 6218 6222-6223 6229 6235 6241 6244 6254 6256 6258 6260 6267 6270 6340 6357 6387 6389 6391 6398 6408 6423-6424 6441 6444 6454 6456 6462 6466 6473 6476-6477 6481 6488 6497 6511 6515 6521 6533 6535-6536 6543-6544 6551 6555 6557 6562-6563 6574 6582 6588-6590 6593 6595-6596 6598 6600-6601 6605 6608 6614 6619 6622 6625 6628-6629 6633 6635-6636 6639-6640 6649 6653 6739 6742 6913 6916 6918 6928 7169 7174 7193-7194 7199 7213 7218-7220 7222 7225-7226 7230-7231 7233 7239 7241-7242 7249 7253 7256 7258-7259 7267 7270 7277 7280 7284-7285 7289 7296 7298-7300 7317 7321 7330-7331 7336 7339 7343-7345 7349 7357 7361 7369 7374 7377 7381 7384-7385 7388 7397 7408 7427-7428 7435 7445-7446 7448 7452 7460-7461 7474 7486 7488 7493-7494 7499 7526 7537 7567 7584 7588 7608 7684 8197 8199 8208 8227 8235 8246 8250-8251 8260 8265-8266 8269 8279 8283 8290 8300 8303 8309 8324 8332-8333 8340 8352 8359-8360 8368 8395 8410 8417 8425 8430 8433 8437 8447 8449 8451 8460 8465 8467-8468 8484 8494 8501 8513 8517-8520 8529 8535 8552 8554 8559 8561 8565 8568 8577 8589 8597 8606 8610 8620 8631 8636 8640-8641 8645 8652 8663 8665 8669 8675 8677 8686 8692 8700 8706 8722 8729 8731 8733 8739 8742 8746 8750 8761 8779 8783 8792 8812 8817 8821 8826 8836 8838 8845-8846 8850-8851 8853 8855 8861 8863 8881 8901 8906-8907 8913-8914 8918 8928 8930 8932 8939 8943 8958-8960 8973 8981 8989 9004 9010 9016 9018-9019 9027 9031 9036 9038 9060 9063 9072 9085 9091-9093 9100-9101 9115 9120 9124 9128 9135 9138 9151-9152 9154 9162 9188 9194 9196-9198 9200 9203 9208 9212 9217 9222 9238-9239 9247-9248 9250 9257 9260 9262 9279 9281 9295 9309 9314 9317 9322-9324 9333-9334 9340 9344 9368 9375 9377 9385 9387 9393 9398 9406 9408 9411 9416 9422 9429 9435 9441 9448 9456 9458 9470-9471 9473-9474 9480 9483-9484 9504 9509-9510 9600 9603 9729 9738-9739 9744 9748 9756 9759 9763 9765 9767-9770 9773 9775 9784 9788 9795 9797 9801 9821 9825 9861 9869 9875 9881 9885 9901 9912 9918-9919 9929 9935 9940 9942-9943 9945 9948-9950 9954 9956 9966-9968 9973-9974 9976 9980 9986 9989 9998 10017 10019-10020 10025 10067 10085 10092 10094 10115 10145 10152 10183 10188 10190-10191 10215 10217 10222 10224 10240 10248 10252 10255 10261 10269 10274 10298 10304 10311 10321 10323 10329-10330 10336-10337 10343 10346-10347 10349 10370 10380 10382 10390 10392 10410 10420 10428 10430-10431 10433-10435 10445 10455 10460 10463 10467 10470-10472 10487 10490 10495 10498 10506 10510 10522 10527 10538-10539 10543-10544 10549 10551 10564-10566 10571 10578 10581 10584-10585 10588-10589 10612 10616 10624 10630-10631 10633-10634 10642 10647-10650 10657 10659-10660 10662 10664-10666 10670-10671 10674 10678 10682 10686-10687 10691 10694 10706-10707 10709 10715 10717-10718 10721 10723-10724 10734 10750-10751 10753 10757 10762 10765 10779 10782 10785 10792-10793 10825 10830 10836 10839-10840 10846 10889 10895 10899-10900 10913 10917 10928 10943 10949-10951 10956 10958-10959 10964 10967 10975 10981 10984 10993 10998-10999 11003 11020 11033 11040 11042 11059 11061 11075 11083 11085-11086 11091 11096 11102 11105 11110-11111 11113 11118 11125 11133 11135 11139 11154 11168 11170 11172 11174 11183 11193 11195 11198 11201 11211 11213-11214 11216 11219 11221 11234 11245 11247 11251 11257 11261 11263 11266 11274 11276 11279 11281-11283 11293 11295-11298 11308 11312 11326-11328 11334 11343 11349 11352-11353 11360 11378 11381-11383 11393-11394 11397-11398 11409 11419 11435 11437 11439 11446 11454-11455 11473 11475 11482 11489 11492-11493 11495 11502 11512 11514 11585 11587-11589 11591 11593 11596 11610 11779 11783 11787 11804-11805 11814 11818 11824-11825 11830 11832 11834 11845-11846 11848 11854 11878 11880-11882 11911 11917 11920 11927 11930 11932 11936 11942-11944 11948 11953-11954 12401 12546 17150 17213-17215 17235-17236 17249-17251 17254 17260 17293 17316-17318 17470 17499-17500 17514 17517 17520 17560 17565 17582 17665 17668 17673 17746 17750 17752 17754-17756 17819 17822 17825 17838 17856 18011 18067 18069-18070 18073 18075 18089 18091-18092 18094 18097 18301 18303 18385-18386 18403-18404 18407 18413 18515 18519 18522 18532 18539 18546 18582 18589 18591 18599 18603 18606 18612 18617 18686 18690 18751 18769 18771-18772 18775 18786 18800 18833-18834 18837 18840-18841 18850 18862 18866 18945 18950 18954 19028 19037 19043 19046 19050 19052-19053 19091 19095 19097 19105 19111 19120-19121 19200 19387-19388 19407 19413 19663 19683 19685-19686 19688 19696 19698 19734 19736 19740-19741 19755 19761 19777 19991 19998 20002-20003 20010 20033 21843-21844 21887 21973-21975 22003 22011 22355 22365 22367 22391 23046-23049 23055 23064 23076 23103 23150 23190 23196 23203 23209 23216 23418 25585-25586 25591 25597 25842-25843 25851 25908 25939 25948 25964 25970 25972 25980 25992 25998 26008-26009 26011 26014 26019 26022 26024 26029 26031 26044 26046 26049 26065 26069-26071 26073-26074 26083 26089 26092 26096 26103 26143 26180 26191 26209 26212 26225 26233 26237-26238 26246 26254 26267 26279 26284 26287 26295 26297 26309-26310 26316 26331 26335 26341 26352 26355-26356 26363 26367 26369 26374 26376 26378 26389 26392 26394 26396 26400-26401 26406-26407 26410 26415 26424 26428 26439-26440 26452-26453 26465 26468 26471 26475 26477 26484 26488 26492 26495 26498 26500 26504 26509 26511 26524 26529 26534 26546 26552-26553 26556 26558 26565 26574 26580 26583 26590 26600 26602 26606 26608-26609 26613-26614 26623 26879 26910-26911 26947 26958 26965 26968 26977 26981 26995 26997 27002 27028 27032-27033 27043 27046 27049 27074-27075 27079 27082 27091-27093 27097 27102 27109 27117-27119 27218 27224 27228 27231 27236 27249 27252-27253 27285 27287 27304 27306 27308 27316 27322 27327 27331 27336 27341 27343 27349-27351 27355 27360 27362 27367-27368 27382 27391 27408-27409 27417 27424 27426 27428 27430 27435 27441-27442 27450 27458 27461 27464 27466-27467 27473-27475 27484-27485 27489 27495 27497 27501 27503-27505 27513 27517-27518 27538 27542 27544 27552 27555 27559 27561-27562 27565 27577 27580 27591-27593 27604 27618 27622 27628 27633-27634 27639 27644 27653-27654 27657 27661 27674 27682 27686 27704-27705 27708 27713 27715 27722 27726 27731 27734 27738 27742 27752 27758 27760 27764 27782 27784 27799 27807 27809 27816 27821 27823-27825 27828 27836 27838 27864 27871-27872 27879-27880 27882 27894-27896 27901-27902 27909 27924 27928-27929 27936 27938 27947 27949 27964-27965 27972-27973 27977 27982-27983 27995 28002 28018 28034 28049 28053 28066-28068 28083 28099-28101 28106 28113 28116 28119-28120 28126 28138 28143 28154 28170 28180 28187 28196-28197 28200 28210 28222 28227 28231-28232 28236 28258 28276-28278 28281-28283 28294 28303 28308 28312 28319 28321 28328 28343 28345 28351 28354 28369 28375 28380 28397-28398 28400-28401 28407 28419 28424 28426-28427 28429 28432 28437-28438 28446-28447 28459 28471 28479-28480 28483 28487 28502 28508 28512-28513 28517 28520 28526-28527 28532 28534 28538-28539 28543 28545 28552 28560 28562 28576 28578 28607 28611 28615 28619-28620 28624 28629 28633 28636 28638 28643 28646 28654 28656 28659-28660 28664 28669-28670 30035 30038-30040 31314-31316 31321 31324 31330 31367 31375 31383 31389 31393 31398 31405 31408 31411-31413 31422 31425 31429 31440 31446 31451 31459 31465 31473 31482 31484 31535 31594 31623 31625 31632 31634-31635 31641 31648 31650 31657 31670 31672 31679 31684-31685 31688 31692-31693 31717 31733 32399 32403 32406 32408 32433 32438 32441 32459 32480 32484 32489 32491 32497 32501-32503 32511 32680 32683 32686 36719 36725 36763 36782-36783 36786-36787 45046 45052 45055 48990 49009-49010 49013 49017 49092 49098 49104 49124https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/466/921?format=asciiRadiodefaultJ/MNRAS/466/921/table1Optical and radio data for 1958 quasarsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSSDSS DR7 object designation (1)meta.id;meta.maincharzSDSS redshift from 2010AJ....139.2360Ssrc.redshiftfloatFWHMHbWidth of H{beta} emission linekm/sspect.line.width;em.line.HbetaintlgL5100log10 of 5100{AA} continuum luminosity (2)log(W)phys.luminosityfloatlgMBHlog10 of black hole mass in solar masses (2)log(solMass)phys.massfloatlgLbollog10 of bolometric luminosity (2)log(W)phys.luminosityfloatGammaEddington ratio L_bol_/L_Edd_phys.luminosity;arith.ratiofloatFWHMOIIIWidth of the OIII emission linekm/sspect.line.width;em.line.OIIIintlgLOIIIlog10 of OIII emission-line luminosity (2)log(W)phys.luminosity;em.line.OIIIfloatN0.5? Number of neighbors within 0.5Mpc (3)meta.numberintnullableN1.0? Number of neighbors within 1.0Mpc (3)meta.numberintnullableN1.5? Number of neighbors within 1.5Mpc (3)meta.numberintnullableRmorphMorphological type of radio emission (4)src.morph.typecharl_lgLrad[<] Limit flag on lgLradmeta.code.errorcharlgLradMonochromatic 1.4-GHz luminosity (2)log(W.Hz**-1)phys.luminosity;em.radio.750-1500MHzfloatLLS? Largest (projected) linear size of radio emission (2)kpcphys.size.diameterintnullableLLSflag[FNM-] Origin of LLS (5)meta.codecharVisClas[resib.] Result of visual inspection of SDSS images (6)meta.codecharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from SDSS name (right ascension part)degpos.eq.ra;meta.main_DEPosition from SDSS name (declination part)degpos.eq.dec;meta.main