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- W4287329439 abstract "We investigate the role played by density inhomogeneities and dissipation on the final outcome of collapse of a self-gravitating sphere. By imposing a perturbative scheme on the thermodynamical variables and gravitational potentials we track the evolution of the collapse process starting off with an initially static perfect fluid sphere which is shear-free. The collapsing core dissipates energy in the form of a radial heat flux with the exterior spacetime being filled with a superposition of null energy and an anisotropic string distribution. The ensuing dynamical process slowly evolves into a shear-like regime with contributions from the heat flux and density fluctuations. We show that the anisotropy due to the presence of the strings drives the stellar fluid towards instability with this effect being enhanced by the density inhomogeneity. An interesting and novel consequence of this collapse scenario is the delay in the formation of the horizon." @default.
- W4287329439 created "2022-07-25" @default.
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- W4287329439 date "2021-02-11" @default.
- W4287329439 modified "2023-09-29" @default.
- W4287329439 title "Stability and Horizon Formation during Dissipative Collapse" @default.
- W4287329439 doi "https://doi.org/10.48550/arxiv.2102.06063" @default.
- W4287329439 hasPublicationYear "2021" @default.
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