J/MNRAS/492/468ivo://CDS.VizieR/J/MNRAS/492/468doi:10.26093/cds/vizier.74920468CDSDors O.L.Freitas-Lemes P.Amores E.B.Perez-Montero E.Cardaci M.V.,Hagele G.F.Armah M.Krabbe A.C.Faundez-Abans M.2024-08-20T20:15:50Z2023-05-23T13:25:53ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleichemically-peculiar-starsseyfert-galaxiesredshiftedvisible-astronomyspectroscopyWe compare the oxygen abundance (O/H) of the narrow-line regions (NLRs) of Seyfert 2 AGNs obtained through strong-line methods and from direct measurements of the electron temperature (Te-method). The aim of this study is to explore the effects of the use of distinct methods on the range of metallicity and on the mass-metallicity relation of active galactic nuclei (AGNs) at low redshifts (z~<0.4). We used the Sloan Digital Sky Survey (SDSS) and NASA/IPAC Extragalactic Database (NED) to selected optical (3000<{lambda}({AA})<7000) emission line intensities of 463 confirmed Seyfert 2 AGNs. The oxygen abundances of the NLRs were estimated using the theoretical Storchi-Bergmann et al. calibrations, the semi-empirical N2O2 calibration, the Bayesian HII-CHI-MISTRY code and the Te-method. We found that the oxygen abundance estimations via the strong-line methods differ from each other up to ~0.8dex, with the largest discrepancies in the low-metallicity regime (12+log(O/H)~<8.5). We confirmed that the Te-method underestimates the oxygen abundance in NLRs, producing unreal subsolar values. We did not find any correlation between the stellar mass of the host galaxies and the metallicity of their AGNs. This result is independent of the method used to estimate Z.2020MNRAS.492..468Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/492/468CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/492/468https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/492/468http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/492/468https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/492/468https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/492/468http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/492/468GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/492/468/table (Emission-line intensities (relative to H{beta}=1) and properties of Seyfert 2 AGNs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/492/468/table?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/492/468/table?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/492/468/table?GETtext/xml+votable180.050000true0.74759920.30433030.0055555555555555565/6549 6553 6/0 547 4098 4102 6337 6352 6521 6526-6527 6543 6560 6565 6576-6577 6581 6583 6610 6640-6641 7184 7213 7219 7222-7223 7228 7230 7272 7279 7283 7300 7302-7303 7305 7308-7309 7312 7316 7321 7323 7364 7370 7456 7470-7471 7482 7484 7514 8194 8196 8207 8209-8210 8214 8228 8230 9042 9457 9603 9607 9612 9624 9633 9635 9637 9645 9647 9982-9983 10120 10180 10182-10183 10189-10190 10213 10215 10221 10223 10403 11346 11348 11351 11357 11471 11489 11591 11833 11838-11839 11880 11882-11883 11911 11922 11925 11927 11929 11932 11942 11947-11948 11952-11954 17229 17497 17661 17663 17742 17757 17763 17767-17769 17771 17774 17777 17816 17821 17825 17827 17830 17835 17837 17856 18003 18006 18008 18011 18024-18025 18062 18066 18070 18078 18082 18084 18089-18090 18092 18096 18178 18302 18395 18405 18408 18411 18771 18778 18831 18833 19005 19045 19457 19751 19753 19758 19761 19776 21845-21846 21851-21852 21855 23045 23049-23050 23052 23072 23074-23076 23146 23186 23193 23196 23202 23208 23211 23233 25597-25599 25837 25851 25855 25919 25935 25941 25948 25958-25959 25962-25963 25966 25968 25974 25977 25979 25982 25997 25999 26003-26005 26012 26018 26024-26026 26028 26032 26035-26037 26040 26042-26044 26048 26050 26052 26055 26059 26063 26066 26070 26081-26082 26084 26086 26092 26167 26169-26171 26177 26179 26181-26182 26184 26189 26192 26194-26195 26201 26222 26227 26229 26235 26254-26255 26257 26261 26263 26268 26276 26282-26283 26288 26304 26307-26309 26311 26313 26373 26384 26878 26941-26943 26949 26961 26963-26966 26970 26972 26979 26981 26983 26988 26990-26991 26994-26998 27002 27027-27028 27034 27036 27045-27048 27052 27056 27073 27197 27219 27226 27230 27234-27235 27238 27244 27246-27247 27249-27250 27252-27254 27258 27260 27288 27292 27295 27303 27305-27307 27311-27313 27317 27331 27333 27394 27424 27529 27648 27652 27654 27657 27661-27662 31385 31388 31394 31403 31419 31422 31435 31437-31438 31458 31464 36718 36723 36726 36766 36784 36792 36803 36807-36808 36810 45055 49106https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/492/468?format=asciiOpticaldefaultJ/MNRAS/492/468/tableEmission-line intensities (relative to H{beta}=1) and properties of Seyfert 2 AGNsSimbadNameSimbad column added by the CDSmeta.idcharnullablezRedshiftsrc.redshiftdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/463] Internall object identifiermeta.idintNameSDSS AGN name (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharOII/HbLine ratio [OII]{lambda}3726+3729/H{beta} (1)spect.line.intensity;arith.ratiofloatNeIII/Hb? [NeIII]{lambda}3869/H{beta} line ratio (1)spect.line.intensity;arith.ratiofloatnullableOIII1/Hb? Line ratio [OIII]4363/H{beta} (1)spect.line.intensity;arith.ratiofloatnullableOIII2/HbLine ratio [OIII]5007/H{beta} (1)spect.line.intensity;arith.ratiofloatHeII/Hb? HeII{lambda}5876/H{beta} line ratio(1)spect.line.intensity;arith.ratiofloatnullableOI/HbLine ratio [OI]{lambda}6300/H{beta} (1)spect.line.intensity;arith.ratiofloatHa/HbLine ratio H{alpha}/H{beta} (1)spect.line.intensity;arith.ratiofloatNII/HbLine ratio [NII]{lambda}6584/H{beta} (1)spect.line.intensity;arith.ratiofloatSII1/HbLine ratio [SII]{lambda}6716/H{beta} (1)spect.line.intensity;arith.ratiofloatSII2/HbLine ratio [SII]{lambda}6731/H{beta} (1)spect.line.intensity;arith.ratiofloatAIII/Hb? [AIII]{lambda}7135/H{beta} line ratio (1)spect.line.intensity;arith.ratiofloatnullableMassAGN mass1e+07solMassphys.massfloate_zError on zstat.error;src.redshiftdoubleC(Hb)Reddening correctionarith.factor;phot.fluxfloatneElectron density (2)cm**-3phys.density;phys.electronintlog(O/H)N2O212+log(O/H) obtained from N2O2 calibration proposed by Castro et al. (2017MNRAS.467.1507C)phys.abundfloatlog(O/H)Sb98112+log(O/H) obtained from Sb98,1 calibration proposed by Storchi-Bergmann (1998AJ....115..909S)phys.abundfloatlog(O/H)Sb98212+log(O/H) obtained from Sb98,2 calibration proposed by Storchi-Bergmann (1998AJ....115..909S)phys.abundfloatlog(O/H)Te12+log(O/H) obtained from Te-methodphys.abundfloatlog(O/H)HII12+log(O/H) obtained from the HII-CHI-MINISTRY code (Perez-Montero et al. 2019MNRAS.489.2652P)phys.abundfloat_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main