TESTING NONSTANDARD COSMOLOGICAL MODELS WITH SNLS3 SUPERNOVA DATA AND OTHER COSMOLOGICAL PROBES
文献类型：期刊论文
| 作者 | Li, ZX ; Wu, PX ; Yu, HW |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2012 |
| 卷号 | 744期号:2页码:176 |
| 关键词 | CHAPLYGIN-GAS MODEL DIGITAL SKY SURVEY HUBBLE-SPACE-TELESCOPE LIGHT-CURVE SHAPES GAMMA-RAY BURSTS IA SUPERNOVAE LEGACY SURVEY DARK ENERGY OBSERVATIONAL CONSTRAINTS CONSTANT |
| ISSN号 | 0004-637X |
| 通讯作者 | Yu, HW (reprint author), Hunan Normal Univ, Minist Educ, Dept Phys, Changsha 410081, Hunan, Peoples R China. |
| 英文摘要 | We investigate the implications for some nonstandard cosmological models using data from the first three years of the Supernova Legacy Survey (SNLS3), assuming a spatially flat universe. A comparison between the constraints from the SNLS3 and those from other SN Ia samples, such as the ESSENCE, Union2, SDSS-II, and Constitution samples, is given and the effects of different light-curve fitters are considered. We find that analyzing SNe Ia with SALT2 or SALT or SiFTO can give consistent results and the tensions between different data sets and different light-curve fitters are obvious for fewer-free-parameters models. At the same time, we also study the constraints from SNLS3 along with data from the cosmic microwave background and the baryonic acoustic oscillations (CMB/BAO), and the latest Hubble parameter versus redshift (H(z)). Using model selection criteria such as chi(2)/dof, goodness of fit, Akaike information criterion, and Bayesian information criterion, we find that, among all the cosmological models considered here (Lambda CDM, constant w, varying w, Dvali-Gabadadze-Porrati (DGP), modified polytropic Cardassian, and the generalized Chaplygin gas), the flat DGP is favored by SNLS3 alone. However, when additional CMB/BAO or H(z) constraints are included, this is no longer the case, and the flat Lambda CDM becomes preferred. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | Hunan Provincial Innovation Foundation For Postgraduate; National Natural Science Foundation of China [10935013, 11175093, 11075083]; Zhejiang Provincial Natural Science Foundation of China [Z6100077, R6110518]; FANEDD [200922]; National Basic Research Program of China [2010CB832803]; NCET [09-0144]; PCSIRT [IRT0964]; Hunan Provincial Natural Science Foundation of China [11JJ7001]; Program for the Key Discipline in Hunan Province |
| 原文出处 | http://dx.doi.org/10.1088/0004-637X/744/2/176 |
| 语种 | 英语 |
| WOS记录号 | WOS:000298666400095 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15181]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Li, ZX,Wu, PX,Yu, HW. TESTING NONSTANDARD COSMOLOGICAL MODELS WITH SNLS3 SUPERNOVA DATA AND OTHER COSMOLOGICAL PROBES[J]. ASTROPHYSICAL JOURNAL,2012,744(2):176. |
| APA | Li, ZX,Wu, PX,&Yu, HW.(2012).TESTING NONSTANDARD COSMOLOGICAL MODELS WITH SNLS3 SUPERNOVA DATA AND OTHER COSMOLOGICAL PROBES.ASTROPHYSICAL JOURNAL,744(2),176. |
| MLA | Li, ZX,et al."TESTING NONSTANDARD COSMOLOGICAL MODELS WITH SNLS3 SUPERNOVA DATA AND OTHER COSMOLOGICAL PROBES".ASTROPHYSICAL JOURNAL 744.2(2012):176. |
入库方式： OAI收割
来源：理论物理研究所
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