J/ApJ/788/45ivo://CDS.VizieR/J/ApJ/788/45doi:10.26093/cds/vizier.17880045CDSToba Y.Oyabu S.Matsuhara H.Malkan M.A.Gandhi P.Nakagawa T.,Isobe N.Shirahata M.Oi N.Ohyama Y.Takita S.Yamauchi C.Yano K.2018-08-24T05:51:00Z2017-07-10T14:32:38ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleigalaxiesinfrared-sourcesinfrared-photometryredshiftedIn this work, we investigate the dependence of the covering factor (CF) of active galactic nuclei (AGNs) on the mid-infrared (MIR) luminosity and the redshift. We constructed 12 and 22 {mu}m luminosity functions (LFs) at 0.006<=z<=0.3 using Wide-field Infrared Survey Explorer (WISE) data. Combining the WISE catalog (Cat. II/311) with Sloan Digital Sky Survey (SDSS, Cat. II/294) spectroscopic data, we selected 223982 galaxies at 12 {mu}m and 25721 galaxies at 22 {mu}m for spectroscopic classification. We then identified 16355 AGNs at 12 {mu}m and 4683 AGNs at 22 {mu}m by their optical emission lines and cataloged classifications in the SDSS. Following that, we estimated the CF as the fraction of Type 2 AGN in all AGNs whose MIR emissions are dominated by the active nucleus (not their host galaxies) based on their MIR colors. We found that the CF decreased with increasing MIR luminosity, regardless of the choice of Type 2 AGN classification criteria, and the CF did not change significantly with redshift for z<=0.2. Furthermore, we carried out various tests to determine the influence of selection bias and confirmed that similar dependences exist, even when taking these uncertainties into account. The luminosity dependence of the CF can be explained by the receding torus model, but the "modified" receding torus model gives a slightly better fit, as suggested by Simpson.2014ApJ...788...45Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/788/45CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/294 : The SDSS Photometric Catalog, Release 7II/311 : WISE All-Sky Data Release (Cutri+ 2012)J/ApJ/697/506 : Mid-infrared galaxy luminosity function from AGNJ/ApJ/743/34 : WISE and SDSS-DR7 data in 69 galaxy clustersJ/other/RMxAA/47.361 : AGN activity in isolated SDSS galaxies (Coziol+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/788/45https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/788/45http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/788/45https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/788/45https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/788/45http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/788/45GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/788/45/table1 (List of the 224168 selected galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/788/45/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/788/45/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/788/45/table1?GETtext/xml+votable180.050000true0.0030417-9.22222220.0055555555555555561/5 8 10 27 2/16 17 19 25 28 103 3/72 73 75 144 146 147 153 154 155 176 177 178 184 407 411 421 423 427 429 430 431 494 4/297 299 389 390 391 399 464 465 467 468 469 472 580 582 583 592 594 600 602 608 609 611 624 716 718 724 740 744 745 746 1373 1375 1599 1621 1622 1623 1625 1626 1627 1637 1638 1639 1641 1642 1643 1691 1701 1703 1707 1713 1714 1715 1961 1962 1963 1965 1966 1967 1980 1982 1983 2027 5/136 138 1184 1185 1187 1193 1540 1541 1549 1552 1553 1555 1585 1588 1589 1685 1728 1729 1732 1864 1866 1867 1880 1881 1882 1884 1896 1897 1898 1900 1901 2325 2327 2441 2442 2443 2504 2505 2506 2518 2524 2526 2528 2530 2536 2545 2547 2548 2550 2553 2555 2868 2870 2876 2878 2968 2969 2970 2988 3095 3097 3098 3099 3100 3101 3136 3137 3138 3140 4223 4303 4307 4308 4309 4310 4312 4313 4314 4323 4324 4325 4326 4328 4329 4330 4373 4374 4375 4377 4378 4380 4388 4389 4390 4392 4393 4394 4416 4437 4438 4441 4442 4453 4454 4457 4458 4459 4501 4502 4504 4505 4506 4508 4515 4517 4518 4520 4521 4522 4575 4596 4597 4598 4601 4602 4629 4630 4633 4634 4635 4636 4645 4646 4647 4651 4652 4654 4672 4693 4694 4697 4698 4709 4710 4713 4714 4716 4736 4737 4738 4751 4757 4758 4761 4762 4773 4774 4777 4778 4831 4845 4846 4847 4850 4851 4852 4853 4854 4856 4917 4918 4919 4921 4922 4923 4924 4933 4934 4935 4937 4939 4940 4944 4960 4995 4997 4998 4999 5000 5001 5002 5008 5461 5462 5463 5469 5471 5491 5588 5589 5591 5597 5679 5761 5762 5763 5764 5768 5786 5797 5798 5801 5802 6391 6461 6462 6463 6477 6478 6479 6481 6482 6483 6497 6498 6499 6541 6542 6543 6545 6546 6547 6561 6562 6563 6757 6758 6759 6761 6762 6763 6809 6810 6811 6821 6822 6823 6825 6826 6827 6848 6849 6851 7508 7509 7510 7786 7823 7829 7830 7831 7833 7834 7841 7842 7843 7856 7858 7859 7882 7883 7886 7924 7926 8102 8103 8105 8107 8114 8120 8122 8125 8127 8170 9181 9182 9183 9191 9194 9195 9196 9200 9201 9202 11261 11262 11263 12247 12253 12254 12271 12273 12274 12275 12276 12280 12282 12287 6/0 1 2 521 522 523 524 526 527 548 549 550 556 640 4744 4745 4747 4769 4780 4781 4783 6149 6168 6169 6172 6173 6205 6216 6217 6337 6363 6365 6366 6367 6739 6932 6933 6934 6976 6977 6980 6981 6992 6993 6996 6997 7461 7463 7532 7533 7540 7568 7569 7570 7572 7573 7576 7579 7582 7583 7596 7597 7608 7609 7612 7680 7681 7684 7685 7696 7697 7701 9306 9307 9520 9522 9528 9530 9616 9618 9624 9625 9626 9648 9650 9656 9658 9761 9762 9763 10028 10030 10061 10062 10063 10084 10085 10086 10093 10094 10095 10116 10118 10124 10152 10153 10154 10177 10179 10185 10187 10209 10211 10217 10219 10224 10226 10232 10233 10234 11476 11477 11478 11484 11486 11508 11520 11522 11528 11530 11600 11602 11608 11610 11616 11617 11620 11621 11856 11857 11858 11864 11884 11956 11960 11961 11968 11969 11970 12288 12289 12290 12375 12378 12379 12387 12408 12409 12410 12480 12481 12556 12557 12558 12564 12568 12576 16887 16891 17149 17150 17151 17207 17211 17223 17227 17244 17245 17246 17260 17261 17262 17264 17265 17287 17291 17308 17309 17310 17324 17325 17326 17328 17329 17330 17344 17346 17405 17406 17407 17469 17470 17471 17485 17486 17487 17491 17505 17506 17507 17516 17517 17518 17524 17528 17543 17547 17549 17550 17551 17564 17565 17566 17580 17581 17582 17584 17585 17586 17600 17601 17602 17604 17661 17662 17663 17668 17669 17670 17672 17673 17725 17726 17727 17741 17742 17743 17745 17746 17747 17756 17757 17758 17761 17762 17763 17772 17773 17774 17776 17777 17778 17784 17805 17806 17807 17809 17810 17811 17820 17821 17822 17825 17826 17827 17840 17841 17842 17844 17856 17857 17858 17920 17921 17922 17981 17982 17983 17997 17998 17999 18001 18002 18003 18012 18013 18014 18028 18029 18030 18065 18066 18067 18076 18077 18078 18092 18093 18094 18096 18097 18098 18104 18112 18113 18114 18176 18177 18178 18184 18293 18295 18299 18365 18366 18367 18375 18381 18382 18383 18396 18398 18401 18402 18403 18412 18413 18414 18416 18417 18418 18509 18510 18511 18513 18515 18524 18525 18526 18529 18531 18548 18552 18575 18579 18597 18598 18599 18601 18602 18603 18612 18613 18614 18624 18625 18626 18628 18632 18634 18683 18685 18686 18687 18749 18750 18751 18763 18765 18766 18767 18769 18770 18771 18780 18781 18782 18785 18786 18787 18796 18797 18798 18800 18801 18802 18808 18829 18830 18831 18833 18834 18835 18844 18845 18846 18849 18850 18851 18860 18861 18862 18880 18881 18882 18956 18960 18976 18978 19021 19022 19023 19025 19026 19027 19036 19037 19038 19041 19042 19043 19052 19053 19054 19056 19057 19058 19085 19086 19087 19089 19090 19091 19100 19101 19102 19105 19106 19107 19116 19117 19118 19120 19121 19122 19136 19137 19138 19200 19201 19202 19319 19322 19323 19359 19371 19373 19374 19375 19379 19397 19398 19399 19420 19428 19429 19430 19432 19433 19434 19440 19456 19457 19458 19583 19645 19646 19647 19663 19666 19667 19681 19683 19700 19704 19725 19726 19727 19729 19731 19745 19747 19753 19754 19755 19764 19768 19780 19784 19844 19848 19985 19986 19987 20012 20013 20014 20016 20017 20018 20040 20096 20097 21843 21873 21959 21991 21997 21999 22360 22361 22363 22385 22396 22397 22399 22485 22487 22710 22711 22713 22714 22715 22760 22762 23043 23060 23061 23062 23064 23065 23066 23076 23077 23080 23101 23102 23103 23104 23138 23150 23181 23182 23183 23185 23186 23187 23196 23197 23198 23201 23202 23203 23212 23213 23214 23216 23217 23218 23224 23232 23233 23234 25559 25579 25581 25582 25583 25821 25822 25823 25837 25838 25839 25841 25842 25843 25885 25886 25887 25901 25902 25903 25905 25906 25907 25922 25923 25985 25986 25987 26139 26141 26142 26143 26155 26157 26158 26159 26161 26162 26163 26177 26178 26179 26241 26242 26243 26871 26877 26878 26879 26903 26909 26910 26911 26933 26941 26942 26943 27019 27021 27022 27023 27025 27026 27027 27041 27042 27043 27197 27198 27199 27213 27214 27215 27233 27234 27235 27277 27278 27279 27281 27282 27283 27297 27298 27299 27400 27402 27403 29973 30029 30030 30031 30044 30045 30046 30064 30065 30973 30974 30975 31138 31148 31150 31289 31290 31291 31309 31310 31311 31313 31314 31315 31329 31330 31331 31340 31341 31342 31344 31345 31346 31354 31355 31357 31358 31359 31363 31429 31430 31431 31488 31489 31490 31550 31551 31594 31598 31599 32391 32397 32398 32399 32402 32403 32406 32425 32426 32427 32460 32462 32478 32484 32486 32492 32494 32495 32497 32499 32505 32672 32674 32684 32686 36607 36702 36703 36715 36717 36718 36719 36721 36722 36723 36758 36759 36761 36762 36763 36773 36774 36775 36788 36789 36790 36792 36793 36794 36812 36816 36817 36818 36832 36861 36862 36863 40957 40959 45023 45039 45043 48983 49005 49006 49007 49009 49010 49011 49020 49021 49022 49077 49078 49079 49081 49091 49108 49112 49114 49124 49126https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/788/45?format=asciiInfrareddefaultJ/ApJ/788/45/table1List of the 224168 selected galaxiesSimbadNameSimbad column added by the CDSmeta.idcharzRedshiftsrc.redshiftfloatTypeSource typesrc.classcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject identifier (1)meta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainindexedDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainF12WISE 12 micron band flux densitymJyphot.flux.density;em.IR.8-15umfloatF22? WISE 22 micron band flux densitymJyphot.flux.density;em.IR.15-30umfloatnullablew3satWISE 12 micron band saturated pixel fractioninstr.saturationfloatw4sat? WISE 22 micron band saturated pixel fractioninstr.saturationfloatnullableSN12Signal-to-Noise ratio in 12 micron bandstat.snr;instr.bandpassfloatSN22? Signal-to-Noise ratio in 22 micron bandstat.snr;instr.bandpassfloatnullablew3ccmapWISE 12 micron band contamination flag (2)meta.codefloatw4ccmapWISE 22 micron band contamination flag (2)meta.codefloatWISEDisplay the WISE data (Cutri et al. 2012, Cat. II/311)meta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlchar