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Scalar field collapse with an exponential potential
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  • 作者:Soumya Chakrabarti
  • 关键词:Gravitational collapse ; Exact solution ; Spherical symmetry ; Scalar field ; Singularity ; Horizon
  • 刊名:General Relativity and Gravitation
  • 出版年:2017
  • 出版时间:February 2017
  • 年:2017
  • 卷:49
  • 期:2
  • 全文大小:
  • 刊物类别:Physics and Astronomy
  • 刊物主题:Theoretical, Mathematical and Computational Physics; Classical and Quantum Gravitation, Relativity Theory; Differential Geometry; Astronomy, Astrophysics and Cosmology; Quantum Physics;
  • 出版者:Springer US
  • ISSN:1572-9532
  • 卷排序:49
文摘
An analogue of the Oppenheimer–Synder collapsing model is treated analytically, where the matter source is a scalar field with an exponential potential. An exact solution is derived followed by matching to a suitable exterior geometry, and an analysis of the visibility of the singularity. In some situations, the collapse indeed leads to a finite time curvature singularity, which is always hidden from the exterior by an apparent horizon.

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