NAOC Open IR
Possible evidence of destroying small PAH particles by radiation from AGNs
Feng Qichen; Wang Jing; Wei Jianyan
2015
Source PublicationResearch in Astronomy and Astrophysics
ISSN1674-4527
Volume15Issue:2Pages:199
AbstractThe 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 OIlambda 6300/H alpha and SIIlambda 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.
Language英语
Funding Project[National Basic Research Program of China (973 program)] ; [National Natural Science Foundation of China] ; [Jet Propulsion Laboratory, California Institute of Technology] ; [National Aeronautics and Space Administration]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/50854
Collection中国科学院国家天文台
Affiliation中国科学院国家天文台
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Feng Qichen,Wang Jing,Wei Jianyan. Possible evidence of destroying small PAH particles by radiation from AGNs[J]. Research in Astronomy and Astrophysics,2015,15(2):199.
APA Feng Qichen,Wang Jing,&Wei Jianyan.(2015).Possible evidence of destroying small PAH particles by radiation from AGNs.Research in Astronomy and Astrophysics,15(2),199.
MLA Feng Qichen,et al."Possible evidence of destroying small PAH particles by radiation from AGNs".Research in Astronomy and Astrophysics 15.2(2015):199.
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