Imitating accelerated expansion of the Universe by matter inhomogeneities: corrections of some misunderstandings
نویسندگان
چکیده
منابع مشابه
Imitating accelerated expansion of the Universe by matter inhomogeneities: corrections of some misunderstandings
A number of misunderstandings about modeling the apparent accelerated expansion of the Universe and about the ‘weak singularity’ are clarified: (1) Of the five definitions of the deceleration parameter given by Hirata and Seljak (HS), only q1 is a correct invariant measure of acceleration/deceleration of expansion. The q3 and q4 are unrelated to acceleration in an inhomogeneous model. (2) The a...
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ژورنال
عنوان ژورنال: General Relativity and Gravitation
سال: 2010
ISSN: 0001-7701,1572-9532
DOI: 10.1007/s10714-010-0993-5