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arxiv: 1205.1168 · v2 · pith:E3B6HATAnew · submitted 2012-05-06 · 🌀 gr-qc · astro-ph.CO· hep-th

Cosmological constraints for an Eddington-Born-Infeld field

Antonio De Felice (IF , Naresuan) , Burin Gumjudpai (IF , Sanjay Jhingan (CTP , Jamia Millia Islamia) This is my paper
classification 🌀 gr-qc astro-ph.COhep-th
keywords modelfieldcomparisoncosmologicaldarkdataeddington-born-infeldlambda
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We consider the Eddington-Born-Infeld (EBI) model here without assuming any cosmological constant. The EBI scalar field is supposed to play a role of both dark matter and dark energy. Different eras in cosmology are reconstructed for the model. A comparison is drawn with $\Lambda$CDM model using Supernova Ia, WMAP7 and BAO data. It seems that the EBI field in this form does not give good fit to observational data in comparison to the $\Lambda$CDM model.

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