气候变化领域集成服务门户(CCPortal): Possible evidence of destroying small PAH particles by radiation from AGNs

CCPortal

DOI	10.1088/1674-4527/15/2/004
	Possible evidence of destroying small PAH particles by radiation from AGNs
	Feng, Qi-Chen; Wang, Jing; Wei, Jian-Yan
发表日期	2015
ISSN	1674-4527
卷号	15 期号:2
英文摘要	The issue of destroying small polycyclic aromatic hydrocarbon (PAH) particles by radiation from AGNs is examined through optical narrow-emission line ratios of a sample of type II AGNs. We find that narrow-line ratios [OI]lambda 6300/H alpha and [SII]lambda 6716, lambda 6731/H alpha have prominent correlations with the PAH 11.3/7.7 ratio in our selected sample of AGNs. Because of the marginal (and in some cases no) dependence of the PAH ratio on the gas metallicity, a possible explanation for the correlations is the destruction of small PAH particles by the hard ionizing field associated with the AGNs.
关键词	infrared: ISM quasars: emission lines galaxies: active galaxies: AGN methods: statistical
学科领域	Astronomy & Astrophysics
语种	英语
WOS研究方向	Astronomy & Astrophysics
来源期刊	Research in Astronomy and Astrophysics
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111819
作者单位	Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Feng, Qi-Chen,Wang, Jing,Wei, Jian-Yan. Possible evidence of destroying small PAH particles by radiation from AGNs[J]. 中国科学院西北生态环境资源研究院,2015,15(2).
APA	Feng, Qi-Chen,Wang, Jing,&Wei, Jian-Yan.(2015).Possible evidence of destroying small PAH particles by radiation from AGNs.Research in Astronomy and Astrophysics,15(2).
MLA	Feng, Qi-Chen,et al."Possible evidence of destroying small PAH particles by radiation from AGNs".Research in Astronomy and Astrophysics 15.2(2015).