Effects of binary interactions on the color evolution of M33

	Effects of binary interactions on the color evolution of M33
	Kang XY(康晓宇)1,2,3 ; Zhang FH(张奉辉)1,2 ; Zhang Y(张余)1,2,3
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2012-08
卷号	55 期号:8 页码:1505-1509
关键词	M33 evolution binary stars
ISSN号	1674-7348
通讯作者	Kang, XY (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	In this work, predictions of the spectral energy distribution from populations of single and binary stars are incorporated into a galactic chemical and color evolution model to explore the significance of the effects of the binary interactions on the color evolution of M33. We first constructed a model without binary interactions, and the model is able to reproduce most of the available observational constraints on the distribution of stellar parameters. We then run simulations with the same set of model parameters but with binary interactions considered. By comparing the results for the populations with and without binary interactions, we find that the inclusion of binary interactions makes the surface brightness greater (similar to 0.1 mag arcsec(-2)) in FUV-band but smaller (similar to 0.7 mag arcsec(-2)) in K-band, while it results in the FUV-K color bluer (similar to 0.8 mag). To reproduce the observations, a model that considers the binary interactions should make more gas fall onto the disk in the early time of the galaxy evolution, or increase the total stellar mass, or both.
学科主题	Physics
WOS标题词	Science & Technology ; Physical Sciences
分类号	P156
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	CHEMO-SPECTROPHOTOMETRIC EVOLUTION ; SUBDWARF-B-STARS ; CHEMICAL EVOLUTION ; MILKY-WAY ; SPIRAL GALAXIES ; POPULATION SYNTHESIS ; ABUNDANCE GRADIENTS ; IRREGULAR GALAXIES ; OPEN CLUSTERS ; MODEL
收录类别	SCI ; EI
原文出处	http://link.springer.com/article/10.1007%2Fs11433-012-4818-2
语种	英语
WOS记录号	WOS:000306176600026
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4527]
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, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650011, China 3.Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Kang XY,Zhang FH,Zhang Y. Effects of binary interactions on the color evolution of M33[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2012,55(8):1505-1509.
APA	Kang XY,Zhang FH,&Zhang Y.(2012).Effects of binary interactions on the color evolution of M33.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,55(8),1505-1509.
MLA	Kang XY,et al."Effects of binary interactions on the color evolution of M33".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 55.8(2012):1505-1509.