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25 April 2024
 
  » arxiv » astro-ph/0506093

 Article overview



Fitting Non-Minimally Coupled Scalar Models to Gold SnIa Dataset
Mingxing Luo ; Qiping Su ;
Date 4 Jun 2005
Subject astro-ph
AbstractNon-minimally coupled theories of special potentials are analyzed numerically. Such theories yield equations of state $omega<-1$ and oscillations of the cosmological expansion, which are favored by the recent analysis of observations. Fitting these theories to the Gold SnIa dataset, we obtain results comparable with other models. A potential of the form $V(phi)=V_0e^{a_1phi^2}$ yields $chi^2_{min}=170.127$. Similar results are obtained for potentials of the form $V(phi)=V_0+a_1phi^n$.
Source arXiv, astro-ph/0506093
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