Effects of expanding dark universe on the astrophysical limits
Tóm tắt
In this paper, gravitational field within a spherically symmetric star overwhelmed through dynamical de Sitter space is obtained. Indeed, closer situation to reality manifesting effects of the dark energy on the properties of astronomical compact objects is considered. It seems the cosmological constant does not play an outstanding role in astronomical scales, however I showed that mass of a typcal star does vary with time in a way that depends upon the polytropic index of the star. In addition, some of astrophysical limits such as the Buchdahl limit may depend on time. The Oppenheimer–Volkoff mass limit also obeys this rule and although the cosmological constant is too small, the value of the Oppenheimer–Volkoff limit shall be halved after 560 million years under some special conditions.
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