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http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/2220| CHARACTERIZATION OF A SAMPLE OF INTERMEDIATE-TYPE AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN | |
| Vahram Chavushyan | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| Galaxies: active Galaxies: Seyfert Galaxies: nuclei Quasars:emission lines | |
| 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. | |
| The Astrophysical Journal | |
| 26-11-2012 | |
| Artículo | |
| Inglés | |
| Estudiantes Investigadores Público en general | |
| 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 | |
| ASTRONOMÍA Y ASTROFÍSICA | |
| Versión aceptada | |
| acceptedVersion - Versión aceptada | |
| Aparece en las colecciones: | Artículos de Astrofísica |
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| 5. Characterization of a Sample of Intermediate-type AGNs. I. Spectroscopic Properties and Serendipitous Discovery of New Dual AGNs.pdf | 2.19 MB | Adobe PDF | Visualizar/Abrir |