چکیده
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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 which the dynamical evolution of the
collapse can give rise to the formation of a naked singularity are examined. It
is shown that depending on the model parameters, strong curvature, naked
singularities would arise as exact solutions to the Rastall’s field equations.
The allowed values of these parameters satisfy certain conditions on the
physical reliability, nakedness, and the curvature strength of the singularity. It
turns out that Rastall gravity, in comparison to general relativity, provides a
wider class of physically reasonable spacetimes that admit both locally and
globally naked singularities
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