Abstract
We consider a spherical body consisting of a fluid with heat flow which radiates in its exterior a null fluid described by the outgoing Vaidya's metric, we prove that this solution matched with the outgoing Vaidya's metric represents a physically reasonable collapsing model. Our model has the remarkable property: it is shear-free and the motion of the fluid is geodesic.
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Tomimura, N.A., Nunes, F.C.P. Radiating spherical collapse with shear and heat flow. Astrophys Space Sci 199, 215–223 (1993). https://doi.org/10.1007/BF00613196
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DOI: https://doi.org/10.1007/BF00613196