QSOs in 2MASS second incremental data release J/AJ/121/2843 ivo://CDS.VizieR/J/AJ/121/2843 doi:10.26093/cds/vizier.51212843 CDS Barkhouse W.A. Hall P.B. 2023-04-06T16:50:42Z 2001-09-22T21:04:31Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr quasars radio-sources infrared-photometry Using the 2MASS Second Incremental Data Release (Cat. <B/2mass>), we have searched for near-infrared counterparts to 13214 quasars from the Veron-Cetty & Veron (Cat. <VII/215>) catalog. We have detected counterparts within 4" for 2277 of the approximately 6320 quasars within the area covered by the 2MASS Second Incremental Data Release. Only 1.6% of these are expected to be chance coincidences. Though this sample is heterogeneous, we find that known radio-loud quasars are more likely to have large near-infrared-to-optical luminosity ratios than radio-quiet quasars are, at a statistically significant level. This is consistent with dust-reddened quasars being more common in radio-selected samples than in optically selected samples, due to stronger selection effects against dust-reddened quasars in the latter. We also find a statistically significant dearth of optically luminous quasars with large near-infrared-to-optical luminosity ratios. This can be explained in a dust obscuration model but not in a model where synchrotron emission extends from the radio into the near-infrared and creates such large ratios. We also find that selection of quasar candidates from the B-J/J-K color-color diagram, modeled on the V-J/J-K selection method of Warren, Hewett, & Foltz, is likely to be more sensitive to dust-obscured quasars than selection using only infrared-infrared colors. 2001AJ....121.2843B https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/121/2843 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to VII/215 : Quasars and Active Galactic Nuclei (9th Ed.) (Veron+ 2000) VII/224 : Quasars and Active Galactic Nuclei (10th Ed.) (Veron+ 2001) B/2mass : The 2MASS database (IPAC/UMass, 2000) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/121/2843 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/121/2843 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/121/2843 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/121/2843 https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/121/2843 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/121/2843 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/AJ/121/2843/table1 (VV00 Quasars Detected in 2MASS) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/121/2843/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/121/2843/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/121/2843/table1? GET text/xml+votable 180.0 50000 true 0.01208389 -35.05905194 0.005555555555555556 Cone search capability for table J/AJ/121/2843/table2 (VV00 Quasars With Only Upper Limits in 2MASS) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/121/2843/table2? https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/121/2843/table2? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/121/2843/table2? GET text/xml+votable 180.0 50000 true 0.08416694 -32.35027806 0.005555555555555556 4/2223-2224 2226 5/1081 1085 1130 1326 1439 1458-1460 2408 2484 2489 2595 2598 2607 2618 2649 2693 2773 2779 2859 4117 4160-4161 4163 4256 4351 4414 4436-4437 4499 4504 6327 6462 6483 6542-6543 6719 6801 6964-6965 6985-6986 7099 7119 8853 8855 8885-8887 8910 8928-8930 8936-8938 9104 9215 11669 11714 11765 12115 12118 12120-12121 12123-12126 6/124 202 234 237 247 272 355 364 367 375 397 406 419 480 532 539 551 557 566 572 575 579 591 600 608 611 638 658-659 664 674 700 753 767 839 868 911 938 980 991 993 1018-1019 1154 1450 1521 1546 1584 1696 1709 1711 1763 1875 2049 2052 2067 2074 2087 2098 2104 2107 2112 2124 2132 2172 2178 2201 2217 2225 2227 2229 2241 2245 2247 2257 2260-2261 2269 2284 2288 2294 2305 2317 2335 2348 2354 2356 2363 2365-2366 2378 2381 2400 2404-2405 2411 2435 2441 2463-2464 2466 2501 2562 2584-2585 2605 2607 2611 2619 2621 2628 2630-2631 2636-2637 2648 2663 2692-2694 2696 2699 2701 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29714 29718 29991 30010 30021 30029 30757 31615 31686 31708 31730 31735 31739 31983 31995 32307 32322 32384 32388 32400 32404 32410 32451 32459 32461 32472 32490 32622 32682 32687 32691 32696 32698 32703 32715 32725 32740 32742 32746 32761 32764 32948 32994 33143 33187 33225 33283 33285-33286 33304 33308 33318 33324 33378 33386 33412 33771 33773 33778 33782 33784 33789 33791 33795 33827 33829 34197 34199 34201-34202 34215 34223 34228 34232-34233 34267 34270 34274 34279-34280 34287-34288 34291 34299 34398 34423 34472 34474 34519 34534-34535 34541-34542 34546 34552 34554 34564 34570-34571 34573 34575 34577-34578 34582-34583 34603 34625 34627 34635 34638 34652 34660 34662 34664-34665 34669 34672 34675 34679 34683 34689 34691 34693 34696 34699 34715 34739 34746-34747 34758 34763 34770 34777 34781 34803 34808 35141-35142 35146 35153 35235 35241-35244 35246-35247 35294 35322 35327 35445 35557-35559 35565 35600 35602-35603 35607-35608 35611 35615 35632 35634-35636 35647 35651 35657 35666 35671 35679 35686 35702 35704 35706 35724-35726 35728-35729 35731 35734 35737 35741 35743 35756 35758 35764-35765 35787 35801 35806 35813 35816 35825 35833 35836 35867-35868 35893 35898 35901 35906-35907 35924 35927 35932 35945 35957 35960 35968-35969 35975 35981 35986-35987 35992-35994 35996-35998 36005 36011 36019-36020 36073-36075 36079 36086 36100-36101 36105 36111 36113 36123 36126 36130 36132 36139 36141-36142 36151 36160 36178-36179 36186 36188 36209 36211 36214 36230 36235 36241 36259-36261 36265 36268 36276 36281 36304 36313 36343 36346 36353 36355 36373 36383 36411 36414 36420 36423 36427 36443 36451 36457-36459 36467 36480 36495-36496 36505 36513 36516 36522 36528 36533 36550-36551 36554 36571 36648 36655 36658 36694 36717 36769 36771 36779 36788 36824 36828-36829 36834 36836 36840 36851-36853 36855 36857-36859 37385 37510 37547 38775 38871 38905 38911 38916 39664 40213 40219-40220 40255 40261 40263 40277 40289 40296 40307 40331 40340 40343-40344 40351 40360 40404 40407 40443 40446 40527 40533 40547 40658 40730 40762 40788 40809 40823 40825 40838 40931 42814 42901 42980 43501 43837 43870 43888 43894-43895 43900 43903 43925 43957 43964 43966-43967 44028 44075 44106 44258 44267 44269 44281-44282 44310 44330 44523 44553 44574 44584-44585 44587 44596 44629 44668 44670 44672-44673 44676 44679 44684 44690 44717 44724 44729 44764 44776 44779 44785 44788 44794 44805 44807 44832 44837 44933 44938 45032 45039 46299 46322 46326-46327 46331 46499 46501-46502 46547 46556 46559 46566 46570 46572 46581 46623 46658 46662 46666 46674-46675 46685 46692 46705 46708 46717 46836 46839 46850 46869 46881-46883 46921 46943 46948 46964-46965 46970 46972-46973 46975 47001-47002 47006-47007 47014 47016 47047 47054 47057 47067-47068 47080 47091 47095 47100 47481 47540 47542 47559 47567-47568 47570 47573 48149 48154 48158 48165-48167 48169-48170 48173-48175 48178 48181-48182 48185 48213 48228 48256-48257 48259-48262 48268 48280 48320 48337 48346 48362 48370 48389 48395 48406-48407 48420 48422 48437 48440 48455 48459 48464 48466-48467 48476 48478-48479 48488-48489 48508 48513 48529-48530 48542 48581 48595 48605 48692 48707 48714 48719 48737-48738 48797-48798 48846 48849 48858 49042 49048 49125 49127 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/121/2843?format=ascii Infrared Radio default J/AJ/121/2843/table1 VV00 Quasars Detected in 2MASS recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int f_2MASS [*] Indicates an object having two 2MASS counterparts within 4''. meta.code char 2MASS The 2MASS identification meta.id.cross char VV00 Name entries of Veron-Cetty & Veron 2000 (1) meta.id;meta.main char RAJ2000 Right Ascension in degrees (J2000) deg pos.eq.ra;meta.main DEJ2000 Declination in degrees (J2000) deg pos.eq.dec;meta.main LNIR Log of the NIR luminosity log(Jy) phys.luminosity;em.IR float Lopt Log of the Optical luminosity log(Jy) phys.luminosity;em.opt float bmag The b_m_ band magnitude mag phot.mag;em.opt.B float rmag The r_m_ band magnitude mag phot.mag;em.opt.R float Jmag The J band magnitude mag phot.mag;em.IR.J float e_Jmag Uncertainty in Jmag mag stat.error;phot.mag;em.IR.J float Hmag The H band magnitude mag phot.mag;em.IR.H float e_Hmag Uncertainty in Hmag mag stat.error;phot.mag;em.IR.H float Kmag The K band magnitude mag phot.mag;em.IR.K float e_Kmag Uncertainty in Kmag mag stat.error;phot.mag;em.IR.K float BMag Absolute B band magnitude (2) mag phys.magAbs;em.opt.B float Dis Distance to the associated optical source arcsec meta.id.assoc;pos.angDistance float Radio ? Flux density at 6 cm (3) Jy phot.flux.density;em.radio.3-6GHz float nullable z Redshift (2) src.redshift float
J/AJ/121/2843/table2 VV00 Quasars With Only Upper Limits in 2MASS z Redshift src.redshift float recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int VV00 Name entry of Veron-Cetty & Veron (2000) (1) meta.id;meta.main char RAJ2000 Right Ascension in degrees (J2000) deg pos.eq.ra;meta.main DEJ2000 Declination in degrees (J2000) deg pos.eq.dec;meta.main Lopt Log of the optical luminosity log(Jy) phys.luminosity;em.opt float Radio ? Flux density measured at 6 cm (2) Jy phot.flux.density;em.radio.3-6GHz float nullable