Cosmic Microwave Background Radiation Constraints on a Modified Chaplygin Gas Model
LIU Dao-Jun, LI Xin-Zhou
Shanghai United Center for Astrophysics (SUCA), Shanghai Normal University, Shanghai 200234
Cosmic Microwave Background Radiation Constraints on a Modified Chaplygin Gas Model
LIU Dao-Jun;LI Xin-Zhou
Shanghai United Center for Astrophysics (SUCA), Shanghai Normal University, Shanghai 200234
关键词 ：
04.40.Dg ,
98.80.Jk ,
98.30.Es
Abstract ： A modified Chaplygin gas model of unifying dark energy and dark matter with the exotic equation of state p=Bρ-A/ρα , which can also explain the recent expansion of the universe, is investigated by means of constraining the location of the peak of the cosmic microwave background radiation spectrum. We find that the result of CMBR measurements does not exclude the nonzero value of parameter B, but allows it in the range -0.35≤B≤0.025.
Key words ：
04.40.Dg
98.80.Jk
98.30.Es
出版日期: 2005-07-01
:
04.40.Dg
(Relativistic stars: structure, stability, and oscillations)
98.80.Jk
(Mathematical and relativistic aspects of cosmology)
98.30.Es
引用本文:
LIU Dao-Jun;LI Xin-Zhou. Cosmic Microwave Background Radiation Constraints on a Modified Chaplygin Gas Model[J]. 中国物理快报, 2005, 22(7): 1600-1603.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2005/V22/I7/1600
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