Constraints on the unified model of dark matter and dark energy
  • 【DOI】

    10.1088/1674-1056/20/7/079801

  • 【摘要】

    Using recently observed data:the Constitution dataset of type supernovae Ia (SNIa),the observational Hubble data (OHD),the measurement results of baryon acoustic oscillation (BAO) from the Sloan Digit... 展开>>Using recently observed data:the Constitution dataset of type supernovae Ia (SNIa),the observational Hubble data (OHD),the measurement results of baryon acoustic oscillation (BAO) from the Sloan Digital Sky Survey (SDSS)and the Two Degree Field Galaxy Redshift Survey (2dFGRS),and the current cosmic microwave background (CMB)data from the five-year Wilkinson Microwave Anisotropy Probe (WMAP),we apply the Markov Chain Monte Carlo method to investigate the observational constraints on the generalized Chaplygin gas (GCG) model as the unification of dark matter and dark energy.For this unified model,the constraints on GCG mixture are discussed by considering the different expressions of current matter density or considering constraints as being independent of the matter quantityΩm. 收起<<

  • 【作者】

  • 【作者单位】

    Department of Physics/School of Physics and Optoelectronic Technology

  • 【刊期】

    中国物理B ISTIC EI SCI 2011年7期

  • 【关键词】

    统一模型  暗能量  暗物质  威尔金森微波各向异性探测器  马尔可夫链蒙特卡罗方法  观测数据  宇宙微波背景  SNIA  generalized Chaplygin gas  unification of dark matter and dark energy 

  • 【基金项目】

    the National Natural Science Foundation of China(10875056;10703001) the Specialized Research Fund for the Doctoral Program of Higher Education of China(20070141034)