J/A+A/704/A211ivo://CDS.VizieR/J/A+A/704/A211CDSYoon Y.Kim Y.Kim D.Chun K.Byun W.2026-03-02T06:25:50Z2025-12-10T10:51:42ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiquasarsredshiftedvisible-astronomyWe examine the connection between galaxy mergers and the triggering of active galactic nuclei (AGNs) using a sample of 614 type 1 AGNs at z<0.07, along with a control sample of inactive galaxies matched to the AGNs for comparison. We use tidal features, detected in deep images from the DESI Legacy Imaging Survey, as direct evidence of recent mergers. We find that the fraction of type 1 AGN hosts with tidal features (f_T_) is higher for AGNs with higher luminosities and (to a lesser extent) more massive black holes. Specifically, f_T_ rapidly increases from 0.05+/-0.03 to 0.75+/-0.13 as the luminosity of the [OIII] {lambda}5007 emission line (L_[OIII]_), an indicator for bolometric AGN luminosity, increases in the range of 10^39.5^<~L_[OIII]_/(erg/s)<~10^42.5. In addition, f_T_ increases from 0.13+/-0.03 to 0.43+/-0.09 as black hole mass (M_BH) increases in the range of 10^6.0<~M_BH_/M_{sun}_<~10^8.5. The fraction f_T_ also increases with the Eddington ratio, although the trend is less significant compared to that with L_[OIII]_ and M_BH_. The excess of f_T_, defined as the ratio of f_T_ for AGNs to that of their matched inactive counterparts, exhibits similar trends, primarily increasing with L_[OIII]_ and weakly with M_BH_. Our results indicate that, in the local universe, galaxy mergers are the predominant triggering mechanism for high-luminosity AGNs, whereas they play a lesser role in the triggering lower-luminosity AGNs. Additionally, strong events, such as galaxy mergers, may be more necessary to activate massive black holes in more massive galaxies due to their lower gas fraction.2025A&A...704A.211Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/704/A211CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/219/1 : Catalog of Type-1 AGNs from SDSS-DR7 (Oh+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/704/A211https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/704/A211http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/704/A211https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/704/A211https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/704/A211http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/704/A211GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/704/A211/table1 (Properties of type 1 AGNs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/704/A211/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/704/A211/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/704/A211/table1?GETtext/xml+votable180.050000true190.3811226.042660.0055555555555555566/549 4122 4144 4160 4177 4185 4189 4208 4214-4215 4255 4306 4329 4347 4353 4369 4381 4395 4409 4461 4469 4496 4523 4535-4536 4540 4558 4597 4605 4608 4613 4625 4650 4661 4667 4686 4735 4821 4861 4908 4935 4943 4956 4974 4992 5000 5031 5066 5087 5090 5123 5141 5149 5153 5177 5181 5231 5256 5267 5274 5330 5344 5367 5375 5391 5421 5439 5470 5480 5500 5514 5536-5537 5555 5566 5594 5637 5659 5693 5699 5721 5730 5796 5851 5865 5869 5880 5902 5923 5930 5934 5949 5971-5972 5982 5989 6002 6028 6050 6087 6096 6100 6110 6115 6161 6212 6220 6232 6236 6245 6413 6415 6417 6448 6458 6523 6526 6534 6548 6581 6599-6600 6605 6643 6648 7180 7207 7211 7246 7258 7277 7288 7298 7321 7328 7337 7356 7361 7365 7410 7446 7484 7515 7552 7562 8214-8216 8225 8229 8261 8277 8288 8300 8302 8346 8384-8385 8424 8430-8431 8442 8464 8508 8547-8548 8606 8634 8654 8668 8675 8710 8718 8732 8735 8759 8771 8798 8814 8848 8859 8884 8886 8889 8893-8895 8922 8933 8935 8947 8949 8958 8963 8968 8986 8997 8999 9004-9005 9007 9018 9022 9030 9048-9049 9051 9055 9064 9091 9119-9120 9144 9221 9229 9231-9232 9242 9252-9254 9260 9272 9323 9345 9354 9356 9392 9401 9404-9405 9411 9446 9452 9508-9509 9601 9612 9626 9640 9643 9730 9733 9754 9757 9765 9767 9776 9796 9809 9811-9812 9848 9851 9867 9873 9904 9913 9926 9980 9983 9997 10123 10144 10146 10181 10190 10217 10221 10226 10250 10265 10269 10272 10276-10277 10288 10298 10304 10308 10312-10313 10342 10348 10357-10358 10372 10389 10393 10396 10421 10432 10454 10475 10501 10511 10524 10627 10630 10633 10636 10643 10658 10671 10680-10682 10760-10761 10777 10787-10788 10802 10815 10829 10835 10852 10860 10869 10871 10885 10888 10909 10924 10950 10953 10958 10978 10989 10991 10995 11050 11064 11077 11101 11103 11143 11191-11192 11199 11217 11284 11300 11311 11319 11336 11367 11388 11392 11416 11443 11502 11504 11512 11588 11785 11788 11809 11906 11942 12398 16894 17150 17237 17240 17254 17315 17514-17515 17562 17576 17601 17814 18001 18008-18009 18018 18067 18074 18098 18384 18412 18495 18524 18544-18545 18625 18687 18839 18853 18948 19028 19033 19037 19087 19090 19096 19101 19115 19136 19200 19382 19673 19678 19688 19996 21847 21879 21885 21964 21975 21980 22005 22010 22355 22361 22363-22364 22389 22718 22762 23064 23183 23207 23211 23218 25581 25585 25854 25903 25919 26041 26051 26067 26074 26079-26080 26089 26103 26164 26228 26277 26300 26310 26393 26414 26430 26462 26469 26513 26525 26540 26543-26544 26584 26596 26602 26614 26961 26964 26990 27038 27066-27067 27077 27225 27239 27259-27260 27285 27293 27312 27317 27342 27359 27363 27387 27411 27425 27446 27448 27458 27477 27481 27484 27486 27501 27505 27514 27543 27547 27563 27599 27625 27635 27648 27677 27718-27719 27724 27739 27752 27771 27795 27799 27815 27821 27847 27878 27903 27913 27947 27949 27972 27976 28019 28068 28075 28080 28082 28139 28146 28153 28156 28168-28169 28223 28254 28262 28278 28280 28285 28289 28292 28315 28346 28350 28357 28371 28374 28407 28409 28413 28425 28440 28446 28484 28488 28492-28493 28496 28507 28533 28571 28584 28595 28605 28609 28630 28632 28639 28643-28644 28654 31365 31399 31401 31410 31436 31438 31447-31448 31466 31468 31470 31474 31484 31534 31616 31649 31651 31676 31686 32433 32462 32492 32683 36733 36765 48991 49123https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/704/A211?format=asciiOpticaldefaultJ/A+A/704/A211/table1Properties of type 1 AGNsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSObjIDObject ID in SDSSmeta.id;meta.mainRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzRedshiftsrc.redshiftdoublelogLOIIILogarithmic luminosity of [OIII] {lambda}5007 emission linelog(1e-07W)phys.luminosityfloatlogLbolLogarithmic bolometric luminositylog(1e-07W)phys.luminosityfloatlogMBHLogarithmic black hole masslog(solMass)phys.massfloatlogREddLogarithmic Eddington ratiophys.luminosity;arith.ratiofloatTidalFeat[Y/N] Presence of tidal features in the host galaxy; Y = present, N = absentmeta.codecharSloanDisplay the online SDSS data for this sourcemeta.ref.urlcharSimbadNameSimbad column added by the CDSmeta.idcharnullable