MG13 - Talk detail |
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Participant |
Alexeyev, Stanislav | |||||||
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Institution |
Sternberg Astronomical Institute - Universitetsky Prospekt, 13 - Moscow - Moscow - Russia | |||||||
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Session |
CM3 |
Accepted |
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Order |
Time |
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Talk |
Oral abstract |
Title |
Brans-Dicke-$\Lambda$ Cosmology without Singularity | |||||
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Abstract |
We discuss a Brans-Dicke model with a cosmological constant, negative value of the $w$ parameter and an arbitrary (in general non-vanishing) scale factor at the Big Bang. We follow the approach of \cite{Uehara1982} in order to solve field equations analytically and to extend the study to a complete set of possible $w$ values. Our main result is that the scale factor (during it's evolution back in time direction) may not vanish, unlike in the standard $\Lambda CDM$ case. In other words, the considered model demonstrates a cosmological bounce instead of the initial singularity. |
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