Charged cosmological dust solutions of the coupled einstein and maxwell equations

Joel Spruck, Yisong Yang

Research output: Contribution to journalArticlepeer-review

Abstract

It is well known through the work of Majumdar, Papapetrou, Har- tle, and Hawking that the coupled Einstein and Maxwell equations admit a static multiple blackhole solution representing a balanced equilibrium state of finitely many point charges. This is a result of the exact cancellation of gravita- tional attraction and electric repulsion under an explicit condition on the mass and charge ratio. The resulting system of particles, known as an extremely charged dust, gives rise to examples of spacetimes with naked singularities. In this paper, we consider the continuous limit of the Majumdar-Papapetrou- Hartle-Hawking solution modeling a space occupied by an extended distribu- tion of extremely charged dust. We show that for a given smooth distribution of matter of finite ADM mass there is a continuous family of smooth solutions realizing asymptotically flat space metrics.

Original languageEnglish (US)
Pages (from-to)567-589
Number of pages23
JournalDiscrete and Continuous Dynamical Systems
Volume28
Issue number2
DOIs
StatePublished - Oct 2010

Keywords

  • ADM mass
  • Asymptotic flatness
  • Electrically charged perfect fluid
  • Elliptic methods
  • The Einstein equations
  • The Maxwell equations

ASJC Scopus subject areas

  • Analysis
  • Discrete Mathematics and Combinatorics
  • Applied Mathematics

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