Did the Universe experience a pressure non-crushing type cosmological singularity in the recent past?

نویسندگان

چکیده

In the recent literature it has been shown that $H_0$ tension may be eliminated if an abrupt physics transition changed Cepheid parameters in near past of Universe, nearly $70-150\,$Myrs ago. this letter we stress possibility was caused by smooth passage our Universe through a pressure finite-time cosmological singularity. Being non-crushing type singularity can leave its imprints since occurs globally and literally everywhere. We discuss how scenario could easily realized $F(R)$ gravity, with strong energy conditions being satisfied without need for scalar field or specific matter fluids. also fact affect effective gravitational constant gravity. Moreover, singularities disrupt trajectories bound objects which is pointed out literature, even context general relativity. show numerically relativistic framework elliptic are distorted to different when passes Such disruption have tidal effects on surface earth, example sea waters oceans, regarding distortion moon's trajectory. Accordingly, earth's trajectory around sun affected climatologically earth

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ژورنال

عنوان ژورنال: EPL

سال: 2022

ISSN: ['0295-5075', '1286-4854']

DOI: https://doi.org/10.1209/0295-5075/ac52dc