https://doi.org/10.1140/epjc/s10052-019-7039-2
Regular Article - Theoretical Physics
On general spherical fluid collapse
Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Science, Tzarigradsko Shausse 72, 1784, Sofia, Bulgaria
* e-mail: boykovi@gmail.com
Received:
22
March
2019
Accepted:
10
June
2019
Published online:
17
June
2019
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.
© The Author(s), 2019
