Weakly trapped surfaces in asymptotically de Sitter spacetimes

Piotr T. Chruściel, Gregory J. Galloway, Eric Ling

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5 Scopus citations


It is a standard fact that trapped or marginally trapped surfaces are not visible from conformal infinity, under the usual set of conditions on matter fields and the conformal completion, provided that the cosmological constant is non-positive. In this note we show that the situation is more delicate in the presence of a positive cosmological constant: we present examples of visible marginally trapped surfaces, and we provide a set of natural conditions which guarantee non-visibility.

Original languageEnglish (US)
Article number135001
JournalClassical and Quantum Gravity
Issue number13
StatePublished - May 30 2018


  • conformal
  • de Sitter
  • trapped surfaces

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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