CONSTRAINTS ON NON-FLAT COSMOLOGIES WITH MASSIVE NEUTRINOS AFTER PLANCK 2015
文献类型：期刊论文
| 作者 | Chen, Yun1 ; Ratra, Bharat2; Biesiada, Marek3,4; Li, Song5; Zhu, Zong-Hong3
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2016-10-01 |
| 卷号 | 829期号:2 |
| 关键词 | cosmology: miscellaneous cosmology: theory dark energy |
| 英文摘要 | We investigate two dark energy cosmological models (i.e., the Lambda CDM and phi CDM models) with massive neutrinos assuming two different neutrino mass hierarchies in both the spatially flat and non-flat scenarios, where in the phi CDM model the scalar field possesses an inverse power-law potential, V(phi) proportional to phi(-alpha) (alpha > 0). Cosmic microwave background data from Planck. 2015, baryon acoustic oscillation data from 6dFGS, SDSS-MGS, BOSS-LOWZ and BOSS CMASS-DR11, the joint light-curve analysis compilation of SNe Ia apparent magnitude observations, and the Hubble Space Telescope H-0 prior, are jointly employed to constrain the model parameters. We first determine constraints assuming three species of degenerate massive neutrinos. In the spatially flat (non-flat) Lambda CDM model, the sum of neutrino masses is bounded as Sigma m(nu) < 0.165(0.299) eV at 95% confidence level (CL). Correspondingly, in the flat (non-flat) phi CDM model, we find Sigma m(nu) < 0.164(0.301) eV at 95% CL. The inclusion of spatial curvature as a free parameter results in a significant broadening of confidence regions for Sigma m(nu) igenstate, we obtain similar conclusions to those obtained in the degenerate neutrino mass scenario. In addition, the results show that the bounds on Sigma m(nu) based on two different neutrino mass hierarchies have insignificant differences in the spatially flat case for both the Lambda CDM and phi CDM models; however, the corresponding differences are larger in the nonflat case. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | HUBBLE-SPACE-TELESCOPE ; DECELERATION-ACCELERATION TRANSITION ; PARAMETER MEASUREMENT CONSTRAINTS ; BARYON ACOUSTIC-OSCILLATIONS ; FIELD DARK ENERGY ; SCALAR-FIELD ; CONSTANT ; STATISTICS ; REDSHIFT ; SAMPLES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000385377200003 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6898]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Computat Astrophys, Natl Astron Observ, Beijing 100012, Peoples R China 2.Kansas State Univ, Dept Phys, 116 Cardwell Hall, Manhattan, KS 66506 USA 3.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 4.Univ Silesia, Dept Astrophys & Cosmol, Inst Phys, Uniwersytecka 4, PL-40007 Katowice, Poland 5.Capital Normal Univ, Dept Phys, Beijing 100048, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Yun,Ratra, Bharat,Biesiada, Marek,et al. CONSTRAINTS ON NON-FLAT COSMOLOGIES WITH MASSIVE NEUTRINOS AFTER PLANCK 2015[J]. ASTROPHYSICAL JOURNAL,2016,829(2). |
| APA | Chen, Yun,Ratra, Bharat,Biesiada, Marek,Li, Song,&Zhu, Zong-Hong.(2016).CONSTRAINTS ON NON-FLAT COSMOLOGIES WITH MASSIVE NEUTRINOS AFTER PLANCK 2015.ASTROPHYSICAL JOURNAL,829(2). |
| MLA | Chen, Yun,et al."CONSTRAINTS ON NON-FLAT COSMOLOGIES WITH MASSIVE NEUTRINOS AFTER PLANCK 2015".ASTROPHYSICAL JOURNAL 829.2(2016). |
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来源：国家天文台
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