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Are type Ia supernovae reliable distance indicators?
Lv LZ(吕连忠)1,2,4; Qin, YP2,3; Zhang FW(张富文)1,4; Lue, LZ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Source PublicationCHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
2007
Volume7Issue:5Pages:649-656
Contribution Rank第1完成单位
Indexed BySCI
KeywordCosmology : Observations Distance Scale Galaxies : Distances And Redshifts Methods : Statistical Supernovae : General
AbstractRecent applications of type Ia supernovae (SNe Ia) 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 Ia 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.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN1009-9271
URL查看原文
Archive Date2008-01-15
WOS IDWOS:000250426300005
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordGAMMA-RAY BURSTS ; HIGH-REDSHIFT SUPERNOVAE ; CARDASSIAN EXPANSION ; DARK ENERGY ; OBSERVATIONAL CONSTRAINTS ; COSMOLOGICAL CONSEQUENCES ; ANGULAR SIZE ; EQUATION ; LUMINOSITY ; UNIVERSE
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/7031
Collection星系研究组
Corresponding AuthorLue, LZ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories / Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011
2.Physics Department, Guangxi University, Nanning 530004
3.Center for Astrophysics of Guangzhou University, Guangzhou 510006
4.Graduate School of Chinese Academy of Sciences, Beijing 100049
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Lv LZ,Qin, YP,Zhang FW,et al. Are type Ia supernovae reliable distance indicators?[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2007,7(5):649-656.
APA Lv LZ,Qin, YP,Zhang FW,&Lue, LZ .(2007).Are type Ia supernovae reliable distance indicators?.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,7(5),649-656.
MLA Lv LZ,et al."Are type Ia supernovae reliable distance indicators?".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 7.5(2007):649-656.
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