Year: 2010
Type: article
Abstract: Several Cardassian universe models including the original, modified polytropic and exponential Cardassian models are constrained by the latest Constitution Type Ia supernova data, the position of the first acoustic peak of CMB from the five years WMAP data and the size of baryonic acoustic oscillation peak from the SDSS data. Both the spatial flat and curved universes are studied, and we also take into account the possible bulk viscosity of the matter fluid in the flat universe case.
Source: Physics Letters B
Authors: Chao-Jun Feng, Xin-Zhou Li
Institution: Shanghai Normal University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid:
Award: G4052987789
OpenAlex ID: W1964824725