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Fitting Non-Minimally Coupled Scalar Models to Gold SnIa Dataset | Mingxing Luo
; Qiping Su
; | Date: |
4 Jun 2005 | Subject: | astro-ph | Abstract: | Non-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 | Services: | Forum | Review | PDF | Favorites |
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