Do naked singularities generically occur in generalized theories of gravity?

Kengo Maeda, Takashi Torii, Makoto Narita

研究成果: Article

9 引用 (Scopus)

抄録

A new mechanism for causing naked singularities is found in an effective superstring theory. We investigate the gravitational collapse in a spherically symmetric Einstein-Maxwell-dilaton system in the presence of a pure cosmological-constant "potential." where the system has no static black hole solution. We show that once gravitational collapse occurs in the system, naked singularities necessarily appear in the sense that the field equations break down in the domain of outer communications. This suggests that in generalized theories of gravity, the nonminimally coupled fields generically cause naked singularities in the process of gravitational collapse if the system has no static or stationary black-hole solution.

元の言語English
ページ(範囲)5270-5273
ページ数4
ジャーナルPhysical Review Letters
81
発行部数24
出版物ステータスPublished - 1998 12 14
外部発表Yes

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naked singularities
gravitational collapse
gravitation
string theory
breakdown
communication
causes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

これを引用

Do naked singularities generically occur in generalized theories of gravity? / Maeda, Kengo; Torii, Takashi; Narita, Makoto.

:: Physical Review Letters, 巻 81, 番号 24, 14.12.1998, p. 5270-5273.

研究成果: Article

Maeda, Kengo ; Torii, Takashi ; Narita, Makoto. / Do naked singularities generically occur in generalized theories of gravity?. :: Physical Review Letters. 1998 ; 巻 81, 番号 24. pp. 5270-5273.
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