Abstract
An intermediate inflationary universe model in the context of a generalized Chaplygin gas is considered. For the matter we consider two different energy densities; a standard scalar field and a tachyon field, respectively. In general, we discuss the conditions of an inflationary epoch for these models. We also, use recent astronomical observations from Wilkinson Microwave Anisotropy Probe seven year data for constraining the parameters appearing in our models.
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Acknowledgements
R.H. was supported by Comision Nacional de Ciencias y Tecnologia through FONDECYT grants No. 1090613, No. 1110230 and by DI-PUCV grant 123.703/2009. M.O. was supported by Proyecto D.I. PostDoctorado 2012 PUCV. N.V. was supported by Proyecto Beca-Doctoral CONICYT No. 21100261.
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Herrera, R., Olivares, M. & Videla, N. Intermediate-generalized Chaplygin gas inflationary universe model. Eur. Phys. J. C 73, 2295 (2013). https://doi.org/10.1140/epjc/s10052-013-2295-z
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DOI: https://doi.org/10.1140/epjc/s10052-013-2295-z