The relationship between the properties of PAHs and AGN activities in type-I AGNs

被引：1

作者：

Feng, Qi-Chen ^{[1
,2
]}

Wang, Jing ^{[1
,3
]}

Li, Hua-Li ^{[1
,2
]}

Wei, Jian-Yan ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Key Lab Space Astron & Technol, NAOC, Beijing 100012, Peoples R China

来源：

RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2015年 / 15卷 / 05期

基金：

中国国家自然科学基金; 美国国家航空航天局;

关键词：

infrared: ISM; quasars: emission lines; galaxies: active; galaxies: evolution; methods: statistical; ACTIVE GALACTIC NUCLEI; POLYCYCLIC AROMATIC-HYDROCARBONS; X-RAY-PROPERTIES; ULTRALUMINOUS INFRARED GALAXIES; EMISSION-LINE PROPERTIES; SPITZER-SPACE-TELESCOPE; H-BETA REGION; SEYFERT-GALAXIES; COMPLETE SAMPLE; HOST GALAXIES;

D O I：

10.1088/1674-4527/15/5/005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In order to explore the relationship between properties of Polycyclic Aromatic Hydrocarbons (PAHs) and AGN activities in Type-I AGNs, we compiled a sample of 47 Type-I AGNs with measured PAH 11.3 mu m and 7.7 mu m emission lines. The PAH emission and optical properties of these AGNs are taken from the literature. It is found that the equivalent width (EW) of 11.3 mu m emission from PAHs shows a weak correlation with the ratio of the EWs of the FeII complex between lambda 4434 and lambda 4684 to H beta (RFe). The PAH 11.3/7.7 ratio is correlated with various elements defined by the first eigenvector space, which are RFe, [OIII]lambda 5007 luminosity and H beta asymmetry. These correlations infer that AGNs with high RFe, weak [OIII] emission and a strong H beta blue-wing are likely to have low PAH ionization, and hence a larger amount of neutral PAHs.

引用

页码：663 / 672

页数：10

共 52 条

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