CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN
A sample of 10 nearby intermediate-type active galactic nuclei (AGN) drawn from the Sloan Digital Sky Survey (SDSS-DR7) is presented. The aim of this work is to provide estimations of the black hole mass for the sample galaxies from the dynamics of the broad line region. For this purpose, a detailed...
| Autor: | |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2012 |
| País: | México |
| Institución: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Repositorio Institucional del INAOE |
| Idioma: | inglés |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/2220 |
| Acceso en línea: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/2220 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/Inspec/Galaxies: active info:eu-repo/classification/Inspec/Galaxies: Seyfert info:eu-repo/classification/Inspec/Galaxies: nuclei info:eu-repo/classification/Inspec/Quasars:emission lines info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/21 |
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CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGNVahram Chavushyaninfo:eu-repo/classification/Inspec/Galaxies: activeinfo:eu-repo/classification/Inspec/Galaxies: Seyfertinfo:eu-repo/classification/Inspec/Galaxies: nucleiinfo:eu-repo/classification/Inspec/Quasars:emission linesinfo:eu-repo/classification/cti/1info:eu-repo/classification/cti/21info:eu-repo/classification/cti/21A sample of 10 nearby intermediate-type active galactic nuclei (AGN) drawn from the Sloan Digital Sky Survey (SDSS-DR7) is presented. The aim of this work is to provide estimations of the black hole mass for the sample galaxies from the dynamics of the broad line region. For this purpose, a detailed spectroscopic analysis of the objects was done. Using BPT diagnostic diagrams we have carefully classified the objects as true intermediate-type AGN and found that 80%⁺⁷˙²%₋₁₇̣ ̣₃% are composite AGN. The black hole mass estimated for the sample is within 6.54±0.16< log MBH <7.81±0.14.Profile analysis show that five objects (J120655.63+501737.1, J121607.08+504930.0, J141238.14+391836.5, J143031.18+524225.8 and J162952.88+242638.3) have narrow double-peaked emission lines in both the red (Hα, [N II]λλ6548,6583 and [S II]λλ6716,6731) and the blue (Hβ and [O III]λλ4959,5007) region of the spectra,with velocity differences (ΔV) between the double peaks within 114 <ΔV <256km s⁻¹. Two of them, J121607.08+504930.0 and J141238.14+391836.5 are candidates for dual AGN since their double-peaked emission lines are dominated by AGN activity. In searches of dual AGN; Type 1, Type 1I and intermediate-type AGN shouldbe carefully separated, due to the high serendipitous number of narrow double-peaked sources (50%±14.4%) found in our sample.The Astrophysical Journal2012-11-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://inaoe.repositorioinstitucional.mx/jspui/handle/1009/2220reponame:Repositorio Institucional del INAOEinstname:Instituto Nacional de Astrofísica, Óptica y Electrónicainstacron:INAOEengcitation:Benítez, Erika., et al., (2012), CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN, The Astrophysical Journal, Vol. 763(1):1-37info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0oai:inaoe.repositorioinstitucional.mx:1009/22202024-08-28T03:23:06Z |
| dc.title.none.fl_str_mv |
CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN |
| title |
CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN |
| spellingShingle |
CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN Vahram Chavushyan info:eu-repo/classification/Inspec/Galaxies: active info:eu-repo/classification/Inspec/Galaxies: Seyfert info:eu-repo/classification/Inspec/Galaxies: nuclei info:eu-repo/classification/Inspec/Quasars:emission lines info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/21 info:eu-repo/classification/cti/21 |
| title_short |
CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN |
| title_full |
CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN |
| title_fullStr |
CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN |
| title_full_unstemmed |
CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN |
| title_sort |
CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN |
| dc.creator.none.fl_str_mv |
Vahram Chavushyan |
| author |
Vahram Chavushyan |
| author_facet |
Vahram Chavushyan |
| author_role |
author |
| dc.subject.none.fl_str_mv |
info:eu-repo/classification/Inspec/Galaxies: active info:eu-repo/classification/Inspec/Galaxies: Seyfert info:eu-repo/classification/Inspec/Galaxies: nuclei info:eu-repo/classification/Inspec/Quasars:emission lines info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/21 info:eu-repo/classification/cti/21 |
| topic |
info:eu-repo/classification/Inspec/Galaxies: active info:eu-repo/classification/Inspec/Galaxies: Seyfert info:eu-repo/classification/Inspec/Galaxies: nuclei info:eu-repo/classification/Inspec/Quasars:emission lines info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/21 info:eu-repo/classification/cti/21 |
| description |
A sample of 10 nearby intermediate-type active galactic nuclei (AGN) drawn from the Sloan Digital Sky Survey (SDSS-DR7) is presented. The aim of this work is to provide estimations of the black hole mass for the sample galaxies from the dynamics of the broad line region. For this purpose, a detailed spectroscopic analysis of the objects was done. Using BPT diagnostic diagrams we have carefully classified the objects as true intermediate-type AGN and found that 80%⁺⁷˙²%₋₁₇̣ ̣₃% are composite AGN. The black hole mass estimated for the sample is within 6.54±0.16< log MBH <7.81±0.14.Profile analysis show that five objects (J120655.63+501737.1, J121607.08+504930.0, J141238.14+391836.5, J143031.18+524225.8 and J162952.88+242638.3) have narrow double-peaked emission lines in both the red (Hα, [N II]λλ6548,6583 and [S II]λλ6716,6731) and the blue (Hβ and [O III]λλ4959,5007) region of the spectra,with velocity differences (ΔV) between the double peaks within 114 <ΔV <256km s⁻¹. Two of them, J121607.08+504930.0 and J141238.14+391836.5 are candidates for dual AGN since their double-peaked emission lines are dominated by AGN activity. In searches of dual AGN; Type 1, Type 1I and intermediate-type AGN shouldbe carefully separated, due to the high serendipitous number of narrow double-peaked sources (50%±14.4%) found in our sample. |
| publishDate |
2012 |
| dc.date.none.fl_str_mv |
2012-11-26 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion |
| format |
article |
| status_str |
acceptedVersion |
| dc.identifier.none.fl_str_mv |
http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/2220 |
| url |
http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/2220 |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
citation:Benítez, Erika., et al., (2012), CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN, The Astrophysical Journal, Vol. 763(1):1-37 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0 |
| eu_rights_str_mv |
openAccess |
| rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0 |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
The Astrophysical Journal |
| publisher.none.fl_str_mv |
The Astrophysical Journal |
| dc.source.none.fl_str_mv |
reponame:Repositorio Institucional del INAOE instname:Instituto Nacional de Astrofísica, Óptica y Electrónica instacron:INAOE |
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Instituto Nacional de Astrofísica, Óptica y Electrónica |
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INAOE |
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INAOE |
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Repositorio Institucional del INAOE |
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Repositorio Institucional del INAOE |
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15,811543 |