Chemical abundances of Seyfert 2 AGNs - II. N2 metallicity calibration based on SDSS

被引：41

作者：

Carvalho, S. P. ^{[1
]}

Dors, O. L. ^{[1
]}

Cardaci, M., V ^{[2
]}

Hagele, G. F. ^{[2
]}

Krabbe, A. C. ^{[1
]}

Perez-Montero, E. ^{[3
]}

Monteiro, A. F. ^{[1
]}

Armah, M. ^{[1
]}

Freitas-Lemes, P. ^{[1
]}

机构：

[1] Univ Vale Paraiba, UNIVAP, Av Shishima Hifumi 2911, BR-12244000 Sao Jose Dos Campos, SP, Brazil

[2] CONICET UNLP, Inst Astrofis La Plata, La Plata, Argentina

[3] CSIC, Inst Astrofis Andalucia, Camino Bajo de Huitor S-N,Aptdo 3004, E-18080 Granada, Spain

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2020年 / 492卷 / 04期

基金：

巴西圣保罗研究基金会;

关键词：

galaxies: abundances; galaxies: active; galaxies: evolution; galaxies: formation; galaxies: ISM; galaxies: nuclei; galaxies: Seyfert; EMISSION-LINE DIAGNOSTICS; ACTIVE GALACTIC NUCLEI; DIGITAL SKY SURVEY; OXYGEN ABUNDANCE; HII-REGIONS; NITROGEN ABUNDANCES; GAS METALLICITY; STAR-FORMATION; GALAXIES; EVOLUTION;

D O I：

10.1093/mnras/staa193

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a semi-empirical calibration between the metallicity (Z) of Seyfert 2 active galactic nuclei and the N2 = log([N HP.6584/11 cy) emission-line intensity ratio. This calibration was derived through the [0 m]..5007/[0 u[),3727 versus N2 diagram containing observational data and photoionization model results obtained with the CLOUDY code. The observational sample consists of 463 confirmed Seyfert 2 nuclei (redshift z < 0.4) taken from the Sloan Digital Sky Survey DR7 data set. The obtained Z N2 relation is valid for the range 0.3 r< ( Z/Zo) 2.0 that corresponds to 0.7 < (N2) < 0.6. The effects of varying the ionization parameter (U), electron density and the slope of the spectral energy distribution on the Z estimations are of the order of the uncertainty produced by the error measurements of N2. This result indicates the large reliability of our Z N2 calibration. A relation between U and the IOutj/[OIII line ratio, almost independent of other nebular parameter, was obtained.

引用

页码：5675 / 5683

页数：9

共 87 条

[1] THE SEVENTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY [J].

Abazajian, Kevork N. ;

Adelman-McCarthy, Jennifer K. ;

Agueros, Marcel A. ;

Allam, Sahar S. ;

Prieto, Carlos Allende ;

An, Deokkeun ;

Anderson, Kurt S. J. ;

Anderson, Scott F. ;

Annis, James ;

Bahcall, Neta A. ;

Bailer-Jones, C. A. L. ;

Barentine, J. C. ;

Bassett, Bruce A. ;

Becker, Andrew C. ;

Beers, Timothy C. ;

Bell, Eric F. ;

Belokurov, Vasily ;

Berlind, Andreas A. ;

Berman, Eileen F. ;

Bernardi, Mariangela ;

Bickerton, Steven J. ;

Bizyaev, Dmitry ;

Blakeslee, John P. ;

Blanton, Michael R. ;

Bochanski, John J. ;

Boroski, William N. ;

Brewington, Howard J. ;

Brinchmann, Jarle ;

Brinkmann, J. ;

Brunner, Robert J. ;

Budavari, Tamas ;

Carey, Larry N. ;

Carliles, Samuel ;

Carr, Michael A. ;

Castander, Francisco J. ;

Cinabro, David ;

Connolly, A. J. ;

Csabai, Istvan ;

Cunha, Carlos E. ;

Czarapata, Paul C. ;

Davenport, James R. A. ;

de Haas, Ernst ;

Dilday, Ben ;

Doi, Mamoru ;

Eisenstein, Daniel J. ;

Evans, Michael L. ;

Evans, N. W. ;

Fan, Xiaohui ;

Friedman, Scott D. ;

Frieman, Joshua A. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2009, 182 (02) :543-558

[2]

[Anonymous], 2016, APJ, DOI DOI 10.3847/2041-8205/825/2/L23

[3] The Chemical Composition of the Sun [J].

Asplund, Martin ;

Grevesse, Nicolas ;

Sauval, A. Jacques ;

Scott, Pat .

ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, VOL 47, 2009, 47 :481-522

[4] CLASSIFICATION PARAMETERS FOR THE EMISSION-LINE SPECTRA OF EXTRA-GALACTIC OBJECTS [J].

BALDWIN, JA ;

PHILLIPS, MM .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1981, 93 (551) :5-19

[5] A comprehensive study of reported high-metallicity giant HII regions -: II.: Ionizing stellar populations [J].

Castellanos, M ;

Díaz, AI ;

Terlevich, E .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2002, 337 (02) :540-552

[6] New metallicity calibration for Seyfert 2 galaxies based on the N2O2 index [J].

Castro, C. S. ;

Dors, O. L. ;

Cardaci, M. V. ;

Hagele, G. F. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 467 (02) :1507-1514

[7] N/O abundance ratios in gamma-ray burst and supernova host galaxies at z < 4. Comparison with AGN, starburst and HII regions [J].

Contini, M. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 469 (03) :3125-3140

[8]

CONTINI M, 1983, ASTRON ASTROPHYS, V127, P15

[9] The metallicity properties of zCOSMOS galaxies at 0.2 < z < 0.8 [J].

Cresci, G. ;

Mannucci, F. ;

Sommariva, V. ;

Maiolino, R. ;

Marconi, A. ;

Brusa, M. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2012, 421 (01) :262-269

[10] New light on the search for low-metallicity galaxies -: I.: The N2 calibrator [J].

Denicoló, G ;

Terlevich, R ;

Terlevich, E .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2002, 330 (01) :69-74

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