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Frozen Hayward-boson stars
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Frozen Hayward-boson stars
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Recently, the model of the Einstein-Bardeen theory minimally coupled to a complex, massive, free scalar field was investigated in arXiv:2305.19057. The introduction of a scalar field disrupts the formation of an event horizon, leaving only a type of solution referred to as a Bardeen-boson star. When the magnetic charge $q$ exceeds a certain critical value, the frozen Bardeen-boson star can be obtained with $\omega \rightarrow 0$. In this paper, we extend to the investigation of Einstein-Hayward-scalar model, and obtain the solution of frozen Hayward-boson star, including the ground and excited states. Furthermore, under the same parameters, it is interesting to observe that both the ground state and the excited states frozen stars have the same critical horizon and mass.
Forward citations
Cited by 2 Pith papers
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Internal structure of Hayward black holes
In Hayward regular black holes, a sufficiently strong scalar-field perturbation collapses the inner horizon and forms a spacelike singularity, with the horizon radius obeying a universal |p-p*|^{0.5} scaling near the ...
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Light Rings, Accretion Disks and Shadows of Hayward Boson Stars
Numerical construction of Hayward boson stars shows that frozen states produce Schwarzschild-like shadows with no extra photon rings while non-frozen states show multiple photon rings inside the shadow.
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