中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Improvements on a unified dark matter model

文献类型:期刊论文

作者Del Popolo, A.1,2,3; Lee, Xi-Guo1
刊名ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS
出版日期2017-10-01
卷号43页码:635-643
ISSN号1063-7737
关键词cosmology theory large scale structure of Universe galaxies formation
DOI10.1134/S1063773717100024
英文摘要We study, by means of a spherical collapse model, the effect of shear, rotation, and baryons on a generalized Chaplygin gas (gCg) dominated universes. We show that shear, rotation, and the baryon presence slow down the collapse with respect to the simple spherical collapse model. The slowing down in the growth of density perturbation is able to solve the instability of the unified dark matter (UDM) models described in previous papers (e.g., Sandvik et al. 2004) at the linear perturbation level, as also shown by a direct comparison of our model with previous results.
WOS关键词SPHERICAL COLLAPSE MODEL ; NONLINEAR DENSITY EVOLUTION ; SECONDARY INFALL MODEL ; ELLIPSOIDAL COLLAPSE ; ENERGY COSMOLOGIES ; GALAXY FORMATION ; CLUSTER SCALES ; SUPERNOVA DATA ; HALOES ; CONSTRAINTS
资助项目Chinese Academy of Sciences President's international fellowship initiative[2017 VMA0044]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者MAIK NAUKA/INTERPERIODICA/SPRINGER
WOS记录号WOS:000412929700001
资助机构Chinese Academy of Sciences President's international fellowship initiative
源URL[http://119.78.100.186/handle/113462/43246]  
专题中国科学院近代物理研究所
通讯作者Del Popolo, A.
作者单位1.Chinese Acad Sci, Inst Modern Phys, POB 31, Lanzhou 730000, Gansu, Peoples R China
2.Univ Catania, Dipartimento Fis & Astron, Viale Andrea Doria 6, I-95125 Catania, Italy
3.INFN, Sez Catania, Via S Sofia, I-95123 Catania, Italy
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GB/T 7714
Del Popolo, A.,Lee, Xi-Guo. Improvements on a unified dark matter model[J]. ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS,2017,43:635-643.
APA Del Popolo, A.,&Lee, Xi-Guo.(2017).Improvements on a unified dark matter model.ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS,43,635-643.
MLA Del Popolo, A.,et al."Improvements on a unified dark matter model".ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS 43(2017):635-643.

入库方式: OAI收割

来源:近代物理研究所

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