On general spherical fluid collapse

Ivanov, B. V. (Aff1, 0000 0001 2097 3094, grid.410344.6, Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Science, Tzarigradsko Shausse 72, 1784, Sofia, Bulgaria)

17 June 2019

Abstract: A rather general form of spherical fluid collapse is formulated. The fluid is anisotropic, has shear, bulk and shear viscosities and is charged. It radiates energy through a heat flow or null radiation. The exterior solution is the charged Vaidya shining star solution. The general junction conditions are given. The main one represents a Riccati equation for the horizon function. We present a simple neutral solution, where the equation becomes a linear one. The whole mass of the star is radiated away without a remnant and the result is flat spacetime.


Published in: EPJC 79 (2019) 520 DOI: 10.1140/epjc/s10052-019-7039-2
License: CC-BY-3.0



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