Publication: On the Possibility of a Static Universe
Дата
2024
Авторы
Fabris, J. C.
Falciano,F. T.
Guimarães, L. F.
Nelson P.-N.
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Аннотация
After a century of cosmological observations, we have a solid standard model of cosmology. However, from a theoretical viewpoint, it is a compelling question if the cosmological data inevitably require an expanding universe independently of the theoretical framework. The possibility of obtaining a viable cosmological model with a constant scale-factor is discussed in the context of the Bransў??Dicke class of scalarў??tensor theories. It is shown that a flat spatial section requires the presence of a stiff matter fluid. However, some kinematical properties of the standard cosmological model can be reproduced. A realistic scenario may require a more complex class of scalarў??tensor theories.
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On the Possibility of a Static Universe / Fabris, J. C. [et al.] // Universe. - 2024. - 10. - № 2. - 10.3390/universe10020092