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- W2922993306 abstract "Gravastar models have recently been proposed as an alternative to black holes, mainly to avoid the pro-ble-ma-tic issues associated with event horizons and singularities. In this work, a regular variety of gravastar models within the context of Einstein-Born-Infeld (EBI) nonlinear electrodynamics are builded. These models presented here are truly regular in the sense that both the metric and its derivatives are continuous throughout space-time, contrary to other cases in the literature where matching conditions are necessary in the interior and exterior regions of the event horizon. We investigated the accretion process for spherically symmetric space-time geometries generated for a nonlinear electromagnetic field where the energy momentum tensor have the same form that an anisotropic fluid that is the general EBI case. We analyse this procedure using the most general static spherically symmetric metric ansatz. In this theoretical context, we examined the accretion process for specific sphe-ri-ca-lly symmetric compact configuration obtaining the accretion rates and the accretion velocities during the process and the flow of the fluid around the black hole. In addition, we study the behaviour of the rate of change of the mass for each chosen metric." @default.
- W2922993306 created "2019-04-01" @default.
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- W2922993306 date "2019-03-26" @default.
- W2922993306 modified "2023-09-27" @default.
- W2922993306 title "Einstein-Born-Infeld gravastar models, dark matter and accretion mechanisms" @default.
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