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  News from critical collapse: Bondi mass, tails, and quasi-normal modes

Aichelburg, P. C., Husa, S., & Pürrer, M. (2005). News from critical collapse: Bondi mass, tails, and quasi-normal modes. Physical Review D, 71: 104005.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4F41-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4F43-C
Genre: Journal Article

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0411078.pdf (Preprint), 541KB
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 Creators:
Aichelburg, Peter C., Author
Husa, Sascha1, Author              
Pürrer, Michael, Author
Affiliations:
1Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24013              

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 Abstract: We discuss critical gravitational collapse on the threshold of apparent horizon formation as a model both for the discussion of global aspects of critical collapse and for numerical studies in a compactified context. For our matter model we choose a self-gravitating massless scalar field in spherical symmetry, which has been studied extensively in the critical collapse literature. Our evolution system is based on Bondi coordinates, the mass function is used as an evolution variable to ensure regularity at null infinity. We compute radiation quantities like the Bondi mass and news function and find that they reflect the DSS behavior. Surprisingly, the period of radiation at null infinity is related to the formal result for the leading quasi-normal mode of a black hole with rapidly decreasing mass. Furthermore, our investigations shed some light on global versus local issues in critical collapse, and the validity and usefulness of the concept of null infinity when predicting detector signals.

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Language(s): eng - English
 Dates: 2005
 Publication Status: Published in print
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 Identifiers: eDoc: 226846
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Title: Physical Review D
Source Genre: Journal
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Pages: - Volume / Issue: 71 Sequence Number: 104005 Start / End Page: - Identifier: -