Inclusion of sdBs in evolutionary population synthesis for binary stellar populations and the application: the determination of photo-z and galaxy morphology

	Inclusion of sdBs in evolutionary population synthesis for binary stellar populations and the application: the determination of photo-z and galaxy morphology
	Zhang FH(张奉辉)1,3 ; Han ZW(韩占文)1,3 ; Li LF(李立芳)1,3 ; Guo JP(郭建坡)1,2,3 ; Zhang Y(张余)1,2,3
刊名	ASTROPHYSICS AND SPACE SCIENCE
	2010-10
卷号	329 期号:1-2 页码:249-253
关键词	Galaxies: distance and redshifts Galaxies: fundamental parameters Binary: general Stars: horizontal branch Ultraviolet: galaxies
ISSN号	0004-640X
通讯作者	Zhang, F (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	Subdwarf B stars (sdBs) can significantly change the ultraviolet spectra of populations at age t similar to 1 Gyr, and have been even included in the evolutionary population synthesis (EPS) models by Han et al. (Mon. Not. R. Astron. Soc. 380:1098, 2007). In this study we present the spectral energy distributions (SEDs) of binary stellar populations (BSPs) by combining the EPS models of Han et al. (Mon. Not. R. Astron. Soc. 380:1098, 2007) and those of the Yunnan group (Zhang et al. in Astron. Astrophys. 415:117, 2004; Mon. Not. R. Astron. Soc. 357:1088, 2005), which have included various binary interactions (except sdBs) in EPS models. This set of SEDs is available upon request from the authors. Using this set of SEDs of BSPs we build the spectra of Burst, E, S0-Sd and Irr types of galaxies by using the package of Bruzual and Charlot (Mon. Not. R. Astron. Soc. 344:1000, 2003). Combined with the photometric data (filters and magnitudes), we obtain the photometric redshifts and morphologies of 1502 galaxies by using the Hyperz code of Bolzonella et al. (Astron. Astrophys. 363:476, 2000). This sample of galaxies is obtained by removing those objects, mismatched with the SDSS/DR7 and GALEX/DR4, from the catalogue of Fukugita et al. (Astron. J. 134:579, 2007). By comparison the results with the SDSS spectroscopic redshifts and the morphological index of Fukugita et al. (Astron. J. 134:579, 2007), we find that the photo-z fluctuate with the SDSS spectroscopic redshifts, while the Sa-Sc galaxies in the catalogue of Fukugita et al. (Astron. J. 134:579, 2007) are classified earlier as Burst-E galaxies.
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]	SUBDWARF-B-STARS ; ORIGIN
收录类别	SCI
原文出处	http://link.springer.com/article/10.1007%2Fs10509-010-0312-3
语种	英语
WOS记录号	WOS:000282823200040
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4489]
专题	云南天文台_大样本恒星演化研究组云南天文台_中国科学院天体结构与演化重点实验室
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011, P.R. China 2.Graduate University of Chinese Academy of Sciences, Beijing, 100039, China 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, China
推荐引用方式 GB/T 7714	Zhang FH,Han ZW,Li LF,et al. Inclusion of sdBs in evolutionary population synthesis for binary stellar populations and the application: the determination of photo-z and galaxy morphology[J]. ASTROPHYSICS AND SPACE SCIENCE,2010,329(1-2):249-253.
APA	Zhang FH,Han ZW,Li LF,Guo JP,&Zhang Y.(2010).Inclusion of sdBs in evolutionary population synthesis for binary stellar populations and the application: the determination of photo-z and galaxy morphology.ASTROPHYSICS AND SPACE SCIENCE,329(1-2),249-253.
MLA	Zhang FH,et al."Inclusion of sdBs in evolutionary population synthesis for binary stellar populations and the application: the determination of photo-z and galaxy morphology".ASTROPHYSICS AND SPACE SCIENCE 329.1-2(2010):249-253.