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Gravitational collapse in Painleve-Gullstrand coordinates

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 نشر من قبل Yuki Kanai
 تاريخ النشر 2010
  مجال البحث فيزياء
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We construct an exact solution for the spherical gravitational collapse in a single coordinate patch. To describe the dynamics of collapse, we use a generalized form of the Painleve-Gullstrand coordinates in the Schwarzschild spacetime. The time coordinate of the form is the proper time of a free-falling observer so that we can describe the collapsing star not only outside but also inside the event horizon in a single coordinate patch. We show the both solutions corresponding to the gravitational collapse from infinity and from a finite radius.



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