aretypelasupernovaereliabledistanceindicators

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	aretypelasupernovaereliabledistanceindicators
	LianZhong L 1; YiPing Qin 2; FuWen Zhang 1
刊名	chinesejournalofastronomyandastrophysics
	2007
卷号	7 期号:5 页码:649
ISSN号	1009-9271
英文摘要	Recent applications of type la supernovae (SNe la) in cosmology have successfully revealed the accelerating expansion of the universe. However, as distance indicators used in measuring the expansion history of the universe and probing the nature of dark energy, these objects must pass more strict tests. We propose a K-S test to investigate if there exists any systematic bias when deriving the luminosity distances under the standard candle assumption. Two samples, one comprising 71 high-redshift SNe la and the other, 44 nearby ones, are used in our investigation. We find that it is likely there exists a bias in the adopted samples, which is probably caused by a systematic error, e.g. in the color parameter used in the luminosity calibration and a bias may be caused by the SN evolution or by varying properties of the dust surrounding the SNe Ia.
语种	英语
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/52287]
专题	中国科学院国家天文台
作者单位	1.中国科学院国家天文台 2.广西大学
推荐引用方式 GB/T 7714	LianZhong L,YiPing Qin,FuWen Zhang. aretypelasupernovaereliabledistanceindicators[J]. chinesejournalofastronomyandastrophysics,2007,7(5):649.
APA	LianZhong L,YiPing Qin,&FuWen Zhang.(2007).aretypelasupernovaereliabledistanceindicators.chinesejournalofastronomyandastrophysics,7(5),649.
MLA	LianZhong L,et al."aretypelasupernovaereliabledistanceindicators".chinesejournalofastronomyandastrophysics 7.5(2007):649.