Dual AGN Candidates with Double-peaked [O iii] Lines Matching that of Confirmed Dual AGNs

被引：13
|
作者：
Kim, D. -C. [1 ]
Yoon, Ilsang [1 ]
Evans, A. S. [1 ,2 ]
Kim, Minjin [3 ]
Momjian, E. [4 ]
Kim, Ji Hoon [5 ,6 ]
机构：
[1] Natl Radio Astron Observ, 520 Edgemont Rd, Charlottesville, VA 22903 USA
[2] Univ Virginia, Dept Astron, 530 McCormick Rd, Charlottesville, VA 22904 USA
[3] Kyungpook Natl Univ, Dept Astron & Atmospher Sci, Daegu 702701, South Korea
[4] Natl Radio Astron Observ, POB O, Socorro, NM 87801 USA
[5] Metaspace, 36 Nonhyeon Ro, Seoul 06321, South Korea
[6] Natl Astron Observ Japan, Subaru Telescope, 650 North Aohoku Pl, Hilo, HI 96720 USA
来源：
ASTROPHYSICAL JOURNAL | 2020年 / 904卷 / 01期
基金：
新加坡国家研究基金会;
关键词：
Active galactic nuclei; Black holes; Galaxy evolution; ACTIVE GALACTIC NUCLEUS; SUPERMASSIVE BLACK-HOLES; EMISSION-LINE; INTERGALACTIC MEDIUM; VLA OBSERVATIONS; STAR-FORMATION; GALAXIES; SEYFERT; MASS; CLASSIFICATION;
D O I：
10.3847/1538-4357/abb9a0
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have performed a spectral decomposition to search for dual active galactic nuclei (DAGNs) in the Sloan Digital Sky Survey (SDSS) quasars with z iii] lines of known DAGNs. Out of 1271 SDSS quasars, we have identified 77 DAGN candidates. Optical and mid-infrared (MIR) diagnostic diagrams are used to investigate the ionizing source in the DAGN candidates. The optical diagnostic analysis suggests 93% of them are powered by AGNs, and MIR diagnostic analysis suggests 97% are powered by AGNs. About one-third of the SDSS images of the DAGN candidates show signs of tidal interaction, but we are unable to identify double nuclei in most of them due to the low spatial resolution of the archival imaging data available for most of the sample. The radio-loud fraction of the DAGN candidates (similar to 10%) is similar to that of typical AGNs.
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页数：15
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