Black hole formation from massive scalar fields

Gonçalves, Sérgio M. C. V.; Moss, Ian G.

doi:10.1088/0264-9381/14/9/015

Cited by 31 publications

(53 citation statements)

References 17 publications

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“…The minimum mass critical solution is an unstable soliton of the type found by Seidel and Suen [168]. The massive scalar field can be treated as collapsing dust to yield a criterion for BH formation [87]. …”

Section: Singularities In Af Spacetimesmentioning

confidence: 99%

Numerical Approaches to Spacetime Singularities

Berger

1998

Living Rev. Relativ.

126

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This review updates a previous review article [22]. Numerical exploration of the properties of singularities could, in principle, yield detailed understanding of their nature in physically realistic cases. Examples of numerical investigations into the formation of naked singularities, critical behavior in collapse, passage through the Cauchy horizon, chaos of the Mixmaster singularity, and singularities in spatially inhomogeneous cosmologies are discussed.

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Section: Singularities In Af Spacetimesmentioning

confidence: 99%

Numerical Approaches to Spacetime Singularities

Berger

1998

Living Rev. Relativ.

126

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“…Because confinement is a key player in the nonlinear, turbulent instability of "boxed spacetimes" [3,7], we are left with the exciting and troublesome possibility that gravitational collapse is a generic rule -rather than an exception -in our Universe. Motivated by this, we revisit an old problem on the gravitational collapse of selfinteracting scalar fields [18,19].…”

Section: Introductionmentioning

confidence: 99%

Collapse of self-interacting fields in asymptotically flat spacetimes: Do self-interactions render Minkowski spacetime unstable?

2014

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The nonlinear instability of anti-de Sitter spacetime has recently been established with the striking result that generic initial data collapses to form black holes. This outcome suggests that confined matter might generically collapse, and that collapse could only be halted -at most -by nonlinear bound states. Here we provide evidence that such mechanism can operate even in asymptotically flat spacetimes, by studying the evolution of the Einstein-Klein-Gordon system for a self-interacting scalar field. We show that (i) configurations which do not collapse promptly can do so after successive reflections off the potential barrier, but (ii) that at intermediate amplitudes and Compton wavelengths, collapse to black holes is replaced by the appearance of oscillating soliton stars, or "oscillatons". Finally, (iii) for very small initial amplitudes, the field disperses away in a manner consistent with power-law tails of massive fields. Minkowski is stable against gravitational collapse. Our results provide one further piece to the rich phenomenology of gravitational collapse and show the important interplay between bound states, blueshift, dissipation and confinement effects.

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“…Any astrophysical object is immersed in vacuum or almost vacuum spacetime, and hence the exterior spacetime around a spherically symmetric star is well described by the Schwarzschild geometry. Moreover it was extensively shown by Goncalves and Moss [19] that any sufficiently massive collapsing scalar field can be formally treated as collapsing inhomogeneous dust. From the continuity of the first and second differential forms, the matching of the sphere to a Schwarzschild spacetime on the boundary surface, Σ, is extensively worked out in literature [47,48,49,50].…”

Section: Matching Of the Interior Space-time With An Exterior Geometrymentioning

confidence: 99%

“…One of the major mechanisms for which scalar fields are thought to be responsible is the inflationary scenario [18]. Also, a scalar field with a variety of potential can mimic the evolution of many a kind of matter distribution as discussed by Goncalves and Moss [19]. Non-spherical models of scalar field collapse are there in literature [20,21], however, the more popular approach being the spherically symmetric collapse.…”

Section: Introductionmentioning

confidence: 99%

Scalar field collapse with an exponential potential

Chakrabarti

2017

Gen Relativ Gravit

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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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Black hole formation from massive scalar fields

Cited by 31 publications

References 17 publications

Numerical Approaches to Spacetime Singularities

Numerical Approaches to Spacetime Singularities

Collapse of self-interacting fields in asymptotically flat spacetimes: Do self-interactions render Minkowski spacetime unstable?

Scalar field collapse with an exponential potential

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