Infrared photometric study for the IRAS 1 Jy sample of ultraluminous infrared galaxies

doi:10.1086/500451

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	Infrared photometric study for the IRAS 1 Jy sample of ultraluminous infrared galaxies
	Chen PS(陈培生); Zhang P(张品); Chen, PS (reprint author), Chinese Acad Sci, Natl Observ, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊	ASTRONOMICAL JOURNAL
	2006-04
卷号	131 期号:4 页码:1942-1947
DOI	10.1086/500451
产权排序	第1完成单位
收录类别	SCI
关键词	Galaxies : Active Galaxies : Nuclei Galaxies : Starburst Infrared : Galaxies
摘要	The Two Micron All Sky Survey observation of the IRAS 1 Jy sample of ultraluminous infrared galaxies (ULIRGs) is presented in this paper. Together with the IRAS photometric data, the properties and energy sources of the IRAS 1 Jy sample of ULIRGs in the near- and far-infrared are discussed. It is shown that most sources, not only Seyfert galaxies but also H II and LINER galaxies, have a radiation mechanism with a power-law continuum in the near- infrared. All Seyfert 1 sources and some Seyfert 2 sources with hidden broad-line regions (BLRs) have much redder colors and steeper spectral indices in the near- infrared, indicative of an extremely strong energy source from the central active galactic nucleus. Almost all sources have thermal radiation indicative of starburst domination in the IRAS region; in particular, all Seyfert 1 sources and many Seyfert 2 sources with hidden BLRs have lower [25]-[60] colors, indicative of a flatter spectral continuum and a rather warm color temperature in the 25-60 mu m region. However, all kinds of sources have similar [60]-[100] color distributions, indicative of similar energy sources from the enhanced heating in active star-forming regions and very cold material and also indicative of the quite small influence from the central activity in the 60-100 mu m region. In addition, all Seyfert 1 sources and some Seyfert 2 sources with hidden BLRs have much larger absolute magnitudes in the K band compared with other sources. The results presented in this paper may further help us to understand the physical properties of ULIRGs.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0004-6256
URL	查看原文
归档日期	2006-04-10
WOS记录号	WOS:000236361200005
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	BROAD-LINE REGIONS ; OPTICAL SPECTROSCOPY ; IR GALAXIES ; 1-JY SAMPLE ; SEARCH ; DUST ; ABSORPTION ; QUASARS ; MAPS ; AGN
引用统计	被引频次：9[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/114a53/4205
专题	其他
通讯作者	Chen, PS (reprint author), Chinese Acad Sci, Natl Observ, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位	National Observatories/Yunnan Observatory and Graduate School, 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	Chen PS,Zhang P,Chen, PS . Infrared photometric study for the IRAS 1 Jy sample of ultraluminous infrared galaxies[J]. ASTRONOMICAL JOURNAL,2006,131(4):1942-1947.
APA	Chen PS,Zhang P,&Chen, PS .(2006).Infrared photometric study for the IRAS 1 Jy sample of ultraluminous infrared galaxies.ASTRONOMICAL JOURNAL,131(4),1942-1947.
MLA	Chen PS,et al."Infrared photometric study for the IRAS 1 Jy sample of ultraluminous infrared galaxies".ASTRONOMICAL JOURNAL 131.4(2006):1942-1947.

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