Shear-free radiating collapse and conformal flatness

Details Shear-free radiating collapse and conformal flatness Shear-free radiating collapse and conformal flatness

2004-01-07

arxiv.org/abs/gr-qc/0401022v2

Int.J.Mod.Phys.D13:583-592,2004

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages Latex. Some misprints in eqs.(17), (30) and (35) have been corrected

Scientific paper

10.1142/S0218271804004840

Here we study some general properties of spherical shear-free collapse. Its general solution when imposing conformal flatness is reobtained [1,2] and matched to the outgoing Vaidya spacetime. We propose a simple model satisfying these conditions and study its physical consequences. Special attention deserve, the role played by relaxational processes and the conspicuous link betweeen dissipation and density inhomogeneity.

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