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arxiv: gr-qc/0012056 · v1 · pith:YXACEHWJnew · submitted 2000-12-15 · 🌀 gr-qc

Gauge-invariant and coordinate-independent perturbations of stellar collapse II: matching to the exterior

Jose M. Martin-Garcia , Carsten Gundlach This is my paper
classification 🌀 gr-qc
keywords perturbationsstargauge-invariantinteriormatchingspacetimeapplicationboundary
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In Paper I in this series we constructed evolution equations for the complete gauge-invariant linear perturbations of a time-dependent spherically symmetric perfect fluid spacetime. A key application of this formalism is the interior of a collapsing star. Here we derive boundary conditions at the surface of the star, matching the interior perturbations to the well-known perturbations of the vacuum Schwarzschild spacetime outside the star.

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