Spitzer mid-infrared spectra of type II quasars using infrared photometric observations

doi:10.1111/j.1365-2966.2011.20293.x

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	Spitzer mid-infrared spectra of type II quasars using infrared photometric observations
	Dan HG(单红光); Chen PS(陈培生); Shan, HG (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
发表期刊	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2012-03
卷号	421 期号:1 页码:235-240
DOI	10.1111/j.1365-2966.2011.20293.x
产权排序	第1完成单位
收录类别	SCI
关键词	Galaxies: Nuclei Quasars: Emission Lines Quasars: General Infrared: Galaxies
摘要	Type II quasars are luminous active galactic nuclei with the optical spectra of type II Seyfert galaxies, and their central regions are obscured by large amounts of gas and dust. In this paper, we present Spitzer spectra of eight type II quasars using infrared photometric observations. It is found that almost all the sources in this paper show features of polycyclic aromatic hydrocarbon and silicate in absorption, which indicate strong star formation activities. All the sources show significant highly ionized atomic emission features, such as [Ne V] and/or [S IV], in the mid-infrared, which indicate that their properties are similar to those of type I Seyfert galaxies. Furthermore, our results reveal that, similar to type II Seyfert galaxies, there might be two types of type II quasar: the 'true' type II quasars and those that have the properties of Seyfert I galaxies in the infrared. Therefore, the classifications of quasars that are based only on their optical spectra are not perfect if their infrared properties are considered.
项目资助者	National Natural Science Foundation of China [11033007, 11173056] ; Chinese Academy of Sciences ; National Aeronautics and Space Administration
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0035-8711
URL	查看原文
归档日期	2012-03-09
WOS记录号	WOS:000302693600050
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	ACTIVE GALACTIC NUCLEI ; SPACE-TELESCOPE ; ULIRG EVOLUTION ; X-RAYS ; SPECTROSCOPY ; GALAXIES ; SPECTROGRAPH ; EMISSION ; ORIGIN ; QUEST
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/5022
专题	高能天体物理研究组中国科学院天体结构与演化重点实验室
通讯作者	Shan, HG (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
作者单位	National Astronomical Observatories/Yunnan Observatory and Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Dan HG,Chen PS,Shan, HG . Spitzer mid-infrared spectra of type II quasars using infrared photometric observations[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2012,421(1):235-240.
APA	Dan HG,Chen PS,&Shan, HG .(2012).Spitzer mid-infrared spectra of type II quasars using infrared photometric observations.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,421(1),235-240.
MLA	Dan HG,et al."Spitzer mid-infrared spectra of type II quasars using infrared photometric observations".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 421.1(2012):235-240.

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