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On the possible role of a nonlinear inflaton scalar field in the formation of astrophysical objects. (English. Russian original) Zbl 1440.83006

Russ. Phys. J. 62, No. 12, 2157-2168 (2020); translation from Izv. Vyssh. Uchebn. Zaved., Fiz. 62, No. 12, 3-11 (2019).
Summary: Within the framework of GRT we consider equilibrium configurations of a self-gravitating nonlinear scalar field of a type that in cosmology is one of the models of an inflaton field. We show that such configurations for a suitable choice of parameters of the system of a gravitational and a scalar field can form wormholes and cosmic strings with different values of the azimuthal angle defect.

MSC:

83C20 Classes of solutions; algebraically special solutions, metrics with symmetries for problems in general relativity and gravitational theory
83F05 Relativistic cosmology
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