Articles with "rastall theory" as a keyword



Null Fluid Collapse in Rastall Theory of Gravity

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Published in 2020 at "Annalen der Physik"

DOI: 10.1002/andp.202000064

Abstract: A Vaidya spacetime is considered for gravitational collapse of a type II fluid in the context of the Rastall theory of gravity. For a linear equation of state for the fluid profiles, the conditions under… read more here.

Keywords: theory gravity; fluid; collapse; rastall theory ... See more keywords

Exploring Light Deflection and Black Hole Shadows in Rastall Theory with Plasma Effects

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Published in 2024 at "International Journal of Theoretical Physics"

DOI: 10.1007/s10773-025-05942-6

Abstract: In this article, we examine the gravitational deflection of particles in curved spacetime immersed in perfect fluid in the context of Rastall theory. We propose an infinite region approach to Gibbons-Werner to avoid singularity, given… read more here.

Keywords: light deflection; black hole; exploring light; rastall theory ... See more keywords

Spatially-curved spacetimes in higher–dimensional Klein–Gordon–Rastall theory

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Published in 2024 at "Physica Scripta"

DOI: 10.1088/1402-4896/ad5300

Abstract: In this paper, we analyze higher-dimensional gravitational Rastall theory coupled with a scalar field on spatially-curved spacetimes. Particularly, the theory admits baryotropic cosmic fluid and a massless quintessence scalar field whose scalar potential has the… read more here.

Keywords: parameter; higher dimensional; rastall theory; curved spacetimes ... See more keywords

Minimally deformed regular Hayward black hole solutions in Rastall theory

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Published in 2024 at "Physica Scripta"

DOI: 10.1088/1402-4896/ad87c8

Abstract: We profit from the gravitational decoupling algorithm via the minimal deformation scheme and extend the regular Hayward black hole, thereby obtaining novel black hole models in the context of Rastall theory. The field equations sourced… read more here.

Keywords: hayward black; regular hayward; minimally deformed; black hole ... See more keywords
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Stable wormholes solutions in the background of Rastall theory

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Published in 2019 at "Modern Physics Letters A"

DOI: 10.1142/s0217732320500352

Abstract: In this study, we explore the spherically symmetric static wormhole solutions in the Rastall modified theory of gravity. For this, we consider the anisotropic fluid distribution to construct the fi... read more here.

Keywords: stable wormholes; solutions background; rastall theory; background rastall ... See more keywords