Publication Details:
Journal or Publication Title:
Աստղաֆիզիկա = Астрофизика = Astrophysics
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Additional Information:
Title:
Dynamics of bouncing universe in Gauss-Bonnet theory of gravity
Other title:
Динамика отскакивающей (циклической) вселенной в теории гравитации Гаусса-Бонне
Creator:
Contributor(s):
Գլխավոր խմբ․՝ Վ․ Հ․ Համբարձումյան (1965-1987) ; Լ․ Վ․ Միրզոյան (1988-1999) ; Դ․ Մ․ Սեդրակյան (2000-2017)
Subject:
Uncontrolled Keywords:
Kantowski-Sachs metric ; f (G) theory of gravity ; bouncing cosmology ; deceleration parameter
Coverage:
Abstract:
This manuscript's primary object is to investigate and study the anisotropic universe in terms of f (G) gravity. Kantowski-Sachs spacetime is considered for this evolution, in a modified theory of gravity. The exact solutions of modified theory field equations are investigated using a viable f (G) model choice. We considered two bouncing scenarios described by exponential and power law scale factors, these non-singular bouncing models also accommodate a transition cosmic acceleration phenomenon. Specific significant cosmological parameters are estimated and discussed for the obtained models.
Place of publishing:
Երևան