摘要We extend the study of the new generalized Chaplygin gas (NGCG) based on [J. Cosmol. Astropart. Phys. 0601 (2006) 003]. Specifically, we not only discuss the change rates of the energy densities and the energy transfer of this model, but also perform the Om diagnostic to differentiate the ΛCDM model from the NGCG and the GCG models. Furthermore, in order to consider the influence of dark energy on structure formation, we also present the evolution of the growth index in this scenario with interaction.
Abstract：We extend the study of the new generalized Chaplygin gas (NGCG) based on [J. Cosmol. Astropart. Phys. 0601 (2006) 003]. Specifically, we not only discuss the change rates of the energy densities and the energy transfer of this model, but also perform the Om diagnostic to differentiate the ΛCDM model from the NGCG and the GCG models. Furthermore, in order to consider the influence of dark energy on structure formation, we also present the evolution of the growth index in this scenario with interaction.
(Mathematical and relativistic aspects of cosmology)
引用本文:
WANG Jun;WU Ya-Bo;WANG Di;YANG Wei-Qiang. Extended Analysis on New Generalized Chaplygin Gas[J]. 中国物理快报, 2009, 26(8): 89801-089801.
WANG Jun, WU Ya-Bo, WANG Di, YANG Wei-Qiang. Extended Analysis on New Generalized Chaplygin Gas. Chin. Phys. Lett., 2009, 26(8): 89801-089801.
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2009, Vol. 26 
