Abstract
We construct an idealized spherically symmetric relativistic model of an exploding object in the framework of the theory of surface layers in general relativity and match a Vaidya solution for a radially radiating star to another Vaidya solution through a thin spherical shell. We reduce the equations of motion and the radiation density of the Vaidya solution given by the matching conditions to a first-order system and analyze the general characteristics of the motion. We use a post-Newtonian approximation to find the equation of motion of a spherically symmetric radiating shell moving in a central gravitational potential.
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Prepared from an English manuscript submitted by the author; for the Russian version, see Teoreticheskaya i Matematicheskaya Fizika, Vol. 169, No. 3, pp. 463–471, December, 2011.
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Babatin, M.M. Shell dynamics in the presence of a central body. Theor Math Phys 169, 1767–1774 (2011). https://doi.org/10.1007/s11232-011-0150-7
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DOI: https://doi.org/10.1007/s11232-011-0150-7