GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS: Extended Analysis on New Generalized Chaplygin Gas

Details GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS: Extended Analysis on New Generalized Chaplygin Gas GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS: Extended Analysis on New Generalized Chaplygin Gas

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009chphl..26h9801w&link_type=abstract

Chinese Physics Letters, Volume 26, Issue 8, pp. 089801 (2009).

Physics

Scientific paper

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.

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