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

文献类型：期刊论文

作者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
出版日期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
产权排序第一完成单位
通讯作者Zhang, F (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
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.
WOS标题词Science & Technology ; Physical Sciences
学科主题Astronomy & Astrophysics
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
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.

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来源：云南天文台

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