J/MNRAS/468/196ivo://CDS.VizieR/J/MNRAS/468/196doi:10.26093/cds/vizier.74680196CDSTruebenbach A.E.Darling J.2024-08-17T20:18:32Z2020-04-14T12:11:40ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiradio-sourcesinfrared-sourcesmillimeter-astronomyphotometrysubmillimeter-astronomyA large fraction of active galactic nuclei (AGN) are 'invisible' in extant optical surveys due to either distance or dust-obscuration. The existence of this large population of dust-obscured, infrared (IR)-bright AGN is predicted by models of galaxy-supermassive black hole coevolution and is required to explain the observed X-ray and IR backgrounds. Recently, IR colour cuts with Wide-field Infrared Survey Explorer have identified a portion of this missing population. However, as the host galaxy brightness relative to that of the AGN increases, it becomes increasingly difficult to differentiate between IR emission originating from the AGN and from its host galaxy. As a solution, we have developed a new method to select obscured AGN using their 20-cm continuum emission to identify the objects as AGN. We created the resulting invisible AGN catalogue by selecting objects that are detected in AllWISE (mid-IR) and FIRST (20 cm), but are not detected in SDSS (optical) or 2MASS (near-IR), producing a final catalogue of 46 258 objects. 30 per cent of the objects are selected by existing selection methods, while the remaining 70 per cent represent a potential previously unidentified population of candidate AGN that are missed by mid-IR colour cuts. Additionally, by relying on a radio continuum detection, this technique is efficient at detecting radio-loud AGN at z>=0.29, regardless of their level of dust obscuration or their host galaxy's relative brightness.2017MNRAS.468..196Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/468/196CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/328 : AllWISE Data Release (Cutri+, 2013)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/468/196https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/468/196http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/468/196https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/468/196https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/468/196http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/468/196GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/468/196/tablea1 (Invisible AGN Catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/468/196/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/468/196/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/468/196/tablea1?GETtext/xml+votable180.050000true0.18242111-8.9433250.0055555555555555562/35 3/79 83 85 87 93-94 101 112-114 131 136 150 153 155 161 164-165 169-171 176-178 282 412-413 415 431 436 439 4/2 256 258-260 262-263 265 267 270-272 274-278 286-287 291-292 294-295 297-300 304-305 308-310 313-315 320-321 324-325 327 330 336-338 346-347 352-354 356 359 361-362 364-366 368-369 371 380-382 389 397 399-401 409-414 460-461 464-465 512-513 517 519-520 522-523 528-529 531-532 534-535 537 539-542 548 550 553-557 580-582 587 590-592 595 609-611 616-617 619 624 626 632 634 640-641 643 649-651 653 655 664 666 669-673 688-689 691-693 695 697-698 700-702 716 718 722 736-738 768 1083 1085 1104 1106-1107 1113 1122 1124 1135-1136 1140 1159 1163-1165 1167-1168 1170-1172 1174 1176-1177 1180-1181 1183 1189 1191-1192 1201 1203 1205-1206 1209 1211 1219 1248 1365 1621-1622 1624 1627 1629-1631 1637-1638 1642 1645-1647 1659 1684 1686 1691 1693 1695 1701 1705-1706 1708 1710 1716 1719 1721-1723 1728-1729 1731-1732 1734 1737-1739 1741-1743 1748 1750-1753 1755 1760-1761 1763-1765 1767-1768 1770 1772 1774-1776 1778-1780 1782 1785 1787-1788 1791 1961-1963 1976 1978-1981 1983 2024 2026-2027 2030 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18533-18535 18537-18539 18585-18587 18597-18599 18603 18660-18662 18713-18718 18772-18773 18775 18800-18802 18805-18807 18809-18811 18852-18854 18864-18866 18924-18925 18927 18952-18954 18968-18969 18971-18973 18975 18985-18987 19000 19002-19003 19020-19021 19023 19044 19046-19047 19097-19099 19108-19109 19111-19112 19114 19132-19134 19148-19149 19151-19154 19156 19158-19161 19163 19172-19174 19185-19188 19190-19191 19204 19206-19207 19213-19215 19237-19239 19241-19245 19247 19272-19274 19324 19326 19337 19339 19361-19363 19368 19370-19371 19404 19408 19413-19414 19416-19417 19420 19424 19426-19429 19431 19433-19434 19440 19456-19458 19464-19465 19467-19470 19480-19482 19492-19493 19495 19521-19525 19527 19533-19535 19541-19543 19545-19547 19552 19554-19555 19557-19562 19580 19588 19590-19591 19593-19594 19596 19598-19599 19601-19603 19613-19615 19621-19624 19627 19632-19633 19635 19644-19646 19649-19650 19656 19658-19660 19664 19669-19671 19673-19676 19680-19681 19686 19689-19690 19724 19728 19730 19738 19744 19747 19749-19751 19753-19756 19762 19840 19984-19985 19989-19990 19996 20000 20002 20006-20007 20009-20010 21868 21870-21871 21876-21877 21879 21957 21959 21968 21970-21971 21989 21991 22008-22009 22011 22361 22363 22384-22385 22387 22393 22395 22492-22493 22495 22517 23045-23047 23056 23058-23059 23064 23072-23074 23076 23080 23102-23103 23138-23139 23142 23148 23150 23181-23183 23186-23187 23196 23198 23201-23203 23216-23218 23224 23230-23233 23245-23246 23256 23258-23259 23265 23267 23280 23282 25519 25528 25530-25531 25534-25535 25565-25567 25578 25581-25583 25585-25587 25589 25591 25596-25597 25599 25713 25715 25813 25815 25821-25823 25837-25839 25841-25843 25896 25898 25902-25903 25906-25907 25920 25922-25923 25973-25975 26004 26006-26007 26028 26030-26031 26056-26058 26114-26115 26118 26120-26121 26123 26138-26139 26141-26143 26148-26149 26157-26159 26161-26163 26177-26179 26225-26227 26232 26234-26235 26241-26243 26264-26265 26267 26292 26295 26304-26306 26508-26510 26516 26518-26519 26541-26543 26845-26847 26863 26866-26868 26870-26871 26896-26897 26900-26901 26910-26911 26925-26927 26929-26931 26965-26967 26969-26971 27000-27001 27003-27004 27006-27007 27009 27011 27024-27025 27027-27029 27031 27041-27043 27085-27087 27116 27118-27119 27166-27167 27183 27187 27189-27191 27203 27240 27242-27243 27252-27254 27267 27273-27276 27278-27279 27317-27319 27344-27345 27347 27381-27383 27404 27406-27407 27412 27414-27415 27424 27426 27441-27445 27447 27484-27485 27487 27492-27493 27495 27501-27503 27528-27529 27531 27533-27535 27684-27685 27687 27736 27738-27739 27764 27766-27767 27772 27774-27776 27778-27779 27841-27843 27849-27851 27985-27987 28068-28070 28192 28194-28195 28268-28270 28309-28311 28316 28318-28319 28344 28346 28380-28382 28437-28439 28500-28501 28503 28537-28539 28544-28545 28547 28588 28590 28628-28629 28631 28652 28654-28655 29973 30030-30031 30035-30037 30039 30044-30045 30050-30051 30056-30057 30060 30062 30064 30076-30077 30079 30165 31283 31310-31311 31322-31323 31336-31337 31339 31345-31347 31350-31351 31363 31437-31439 31444 31446-31447 31456 31458-31459 31481-31483 31520 31522-31523 31525 31527 31532-31534 31542-31543 31550 31586-31587 31590-31591 31612 31614-31615 31632-31634 31637-31639 31716 31718-31719 32298-32299 32302 32400 32402-32403 32406-32408 32410-32411 32413-32415 32454-32455 32472 32474-32475 32500 32502-32503 32508 32510-32511 32674-32675 32684 32686-32687 36703 36717-36719 36721 36723 36732-36734 36759 36762-36763 36771 36773-36775 36777-36779 36801-36803 36816-36817 36826 36845-36847 36854 40927 40953-40955 44959 44981-44983 45023-45024 45026 45032 45034 45038-45039 45043-45044 45046-45047 48983 48989-48990 49005 49007 49009-49010 49012-49014 49077 49084 49087 49091 49097-49099 49104-49105 49107 49113 49115 49120-49122 49124 49128 49130 49140-49142 49149-491519.276497240453405e-25 9.276497240453405e-25https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/468/196?format=asciiInfraredMillimeterRadiodefaultJ/MNRAS/468/196/tablea1Invisible AGN CataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFIRSTID as it appears in FIRST Cataloguemeta.id;meta.maincharRAJ2000Right ascension from FIRST Catalogue (J2000)degpos.eq.ra;meta.mainindexede_RAJ2000Uncertainty (90% confidence) of FIRST right ascension (1)arcsecstat.error;pos.eq.rafloatDEJ2000Declination from FIRST Catalogue (J2000)degpos.eq.dec;meta.mainindexede_DEJ2000Uncertainty (90% confidence) of FIRST declination (1)arcsecstat.error;pos.eq.decfloatF1.4GHz1.4GHz integrated flux density from FIRSTmJyphot.flux.density;em.radio.750-1500MHzfloate_F1.4GHzLocal noise estimate at the source positionmJystat.errorfloatAllWISEAllWISE ID as it appears in AllWISE Cataloguemeta.idcharNote[*] Note (2)meta.notecharRAAdegRight ascension from AllWISE Cataloguedegpos.eq.rae_RAAdeg1-sigma uncertainty of WISE right ascension (3)arcsecstat.errorfloatDEAdegDeclination from AllWISE Cataloguedegpos.eq.dece_DEAdeg1-sigma uncertainty of WISE declination (3)arcsecstat.errorfloatl_[3.4]Upper limit flag on [3.4]meta.code.errorchar[3.4]3.4 micron magnitude from AllWISE Cataloguemagphot.mag;em.IR.3-4umfloate_[3.4]? 1-sigma uncertainty on 3.4 micron magnitude from the AllWISE Cataloguemagstat.errorfloatnullableSNR3.4? 3.4 micron magnitude measurement signal-to-noise ratio.stat.snrfloatnullablel_[4.6]Upper limit flag on [4.6]meta.code.errorchar[4.6]4.6 micron magnitude from AllWISE Cataloguemagphot.mag;em.IR.4-8umfloate_[4.6]? 1-sigma uncertainty on 4.6 micron magnitude from the AllWISE Cataloguemagstat.errorfloatnullableSNR4.64.6 micron magnitude measurement signal-to-noise ratiostat.snrfloatl_[12]Upper limit flag on [12]meta.code.errorchar[12]? 12 micron magnitude from AllWISE Cataloguemagphot.flux.density;em.IR.8-15umfloatnullablee_[12]? 1-sigma uncertainty on 12 micron magnitude from the AllWISE Cataloguemagstat.errorfloatnullableSNR12? 12 micron magnitude measurement signal-to-noise ratio.stat.snrfloatnullablel_[22]Upper limit flag on [22]meta.code.errorchar[22]? 22 micron magnitude from AllWISE Cataloguemagphot.flux.density;em.IR.15-30umfloatnullablee_[22]? 1-sigma uncertainty on 22 micron magnitude from the AllWISE Cataloguemagstat.errorfloatnullableSNR22? 22 micron magnitude measurement signal-to-noise ratio.stat.snrfloatnullablethetaAngular separation between the FIRST source and the AllWISE sourcearcsecpos.angDistancefloate_theta1-sigma uncertainty in the angular separation calculated based on FIRST and WISE position uncertaintiesarcsecstat.error;pos.posAngfloatSimbadSimbad column added by the CDSmeta.ref.urlchar