Statistical correlations between near-infrared luminosities and ring sizes in field ringed galaxies

	Statistical correlations between near-infrared luminosities and ring sizes in field ringed galaxies
	Wu WT(邬文弢)
刊名	ASTRONOMICAL JOURNAL
	2008-01
卷号	135 期号:1 页码:268-290
关键词	distance scale galaxies : elliptical and lenticular cD galaxies : spiral galaxies : statistics galaxies : structure
ISSN号	0004-6256
通讯作者	Wu, WT (reprint author), Chinese Acad Sci, Natl Astron Observ Yunnan Observ, Kunming 65011, Yunnan Province, Peoples R China.
产权排序	第一完成单位
英文摘要	Statistically complete samples of inner-pseudo-, inner-, and outer-ringed galaxies can be extracted from the Catalog of Southern Ringed Galaxies. Redshifts and near-infrared (NIR) photometric data are available for the samples, allowing the derivation of the statistical correlations between the total NIR. luminosities (L-NIR) and the projected ring major axes in the physical scale (D) for these galaxies. For any of the three types of rings, the correlations are approximately LNIR proportional to D-1.2 among the early-type ringed galaxies (the most: commonly observed ringed galaxies). The correlations among late-type ringed galaxies appear significantly different. The results contradict the previous suggestion by Kormendy (1979, ApJ, 227, 714), who gave L-B proportional to D-2 (L-B: B-band galaxy luminosity). The relations can be used in future to test theoretical simulations of dynamical structures of ringed galaxies as well as those of ring formation under the framework of cosmological models. Currently the results indicate at most small differences in the relative contributions of disk components to total galaxy masses and in the initial disk velocity dispersions between commonly observed ringed galaxies of similar type. The correlations also suggest a new approach to effectively use ring sizes as tertiary cosmological distance indicators, to help enhance the reliability of the measurement of the Hubble Constant.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	ALL-SKY SURVEY ; DISTANCE INDICATORS ; SPIRAL GALAXIES ; HUBBLE CONSTANT ; SURFACE PHOTOMETRY ; REDSHIFT SURVEY ; CATALOG ; DISK ; CALIBRATION ; PARAMETERS
收录类别	SCI
原文出处	http://iopscience.iop.org/1538-3881/135/1/268/
语种	英语
WOS记录号	WOS:000252399600024
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4966]
专题	云南天文台_高能天体物理研究组
作者单位	National Astronomical Observatories/Yunnan Observatory of the Chinese Academy of Sciences, Kunming, 65011, Yunnan Province, China
推荐引用方式 GB/T 7714	Wu WT. Statistical correlations between near-infrared luminosities and ring sizes in field ringed galaxies[J]. ASTRONOMICAL JOURNAL,2008,135(1):268-290.
APA	Wu WT.(2008).Statistical correlations between near-infrared luminosities and ring sizes in field ringed galaxies.ASTRONOMICAL JOURNAL,135(1),268-290.
MLA	Wu WT."Statistical correlations between near-infrared luminosities and ring sizes in field ringed galaxies".ASTRONOMICAL JOURNAL 135.1(2008):268-290.