The two-color diagram: The "double-hump'' behavior at the radio band and the evolution of blazars

doi:10.1086/499530

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	The two-color diagram: The "double-hump'' behavior at the radio band and the evolution of blazars
	Xie GZ(谢光中)1,2 ; Dai H(戴宏)1,2,3 ; Mao, LS 4; Li HZ(李怀珍)1,3 ; Liu HT(刘洪涛)1,3 ; Zhou, SB (Zhou, SB)2; Ma, L (Ma, L)4; Chen LE(陈洛恩)1,3,5 ; Xie, GZ (reprint author), Chinese Acad Sci, Yuman Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊	ASTRONOMICAL JOURNAL
	2006-03
卷号	131 期号:3 页码:1210-1215
DOI	10.1086/499530
产权排序	第1完成单位
收录类别	SCI
关键词	Galaxies : Active Galaxies : Evolution Galaxies : Nuclei Quasars : General
摘要	We compiled a sample of 29 flat-spectrum radio quasars (FSRQs) and 48 BL Lac objects for which both B - V and U - B are available. The two-color (U - B, B - V) stellar evolution diagram of FSRQs and BL Lac objects in this sample shows that FSRQs and BL Lac objects can be considered to be in the same family, but they occupy different extreme regions in the diagram. The result of the two- color diagram of FSRQs and BL Lac objects in this paper is consistent with the intrinsic accretion rate - luminosity relation for FSRQs and BL Lac objects that was obtained in a previous paper. In addition, based on the quasi-simultaneous spectral properties of core-dominated radio sources observed by Punsly, we compiled another sample of FSRQs and BL Lac objects for which the quantities Delta log [(F-nu)(cm)/(F-nu)(mm)] have been well obtained. We found that there is a significant correlation between the intrinsic bolometric luminosity log L-bol(in) and the quantity Delta. We also found that FSRQs have a relatively higher bolometric luminosity and larger Delta than BL Lac objects. This result is also consistent with the intrinsic accretion rate - luminosity relation because the physical parameters Delta are strongly correlated with the accretion rates (M) and nuclear gas densities.
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	2006-04-21
WOS记录号	WOS:000236143700002
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	BL-LACERTAE OBJECTS ; RAY-LOUD BLAZARS ; SPECTRAL ENERGY-DISTRIBUTIONS ; SUPERMASSIVE BLACK-HOLES ; QUASI-STELLAR OBJECTS ; ACTIVE GALACTIC NUCLEI ; HIGH-FREQUENCY PEAKERS ; LAC OBJECTS ; CENTRAL ENGINES ; VARIABILITY
引用统计	被引频次：16[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/114a53/7006
专题	星系研究组
通讯作者	Xie, GZ (reprint author), Chinese Acad Sci, Yuman Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Science, P.O. Box 110, Kunming 650011, China 2.Yunnan Astrophysics Center, Yunnan University, Kunming 650091, China 3.Graduate School of the Chinese Academy of Sciences, Beijing, China 4.Physics Department, Yunnan Normal University, Kunming 650091, China 5.Physics Department, Yuxi Normal College, Yuxi 653100, 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	Xie GZ,Dai H,Mao, LS,et al. The two-color diagram: The "double-hump'' behavior at the radio band and the evolution of blazars[J]. ASTRONOMICAL JOURNAL,2006,131(3):1210-1215.
APA	Xie GZ.,Dai H.,Mao, LS.,Li HZ.,Liu HT.,...&Xie, GZ .(2006).The two-color diagram: The "double-hump'' behavior at the radio band and the evolution of blazars.ASTRONOMICAL JOURNAL,131(3),1210-1215.
MLA	Xie GZ,et al."The two-color diagram: The "double-hump'' behavior at the radio band and the evolution of blazars".ASTRONOMICAL JOURNAL 131.3(2006):1210-1215.

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