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Magnetically Induced Rotating Rayleigh-Taylor Instability
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Generating matter inhomogeneities in general relativity.

A A Coley1, W C Lim

  • 1Department of Mathematics & Statistics, Dalhousie University, Halifax, Nova Scotia, Canada B3H 3J5. aac@mathstat.dal.ca

Physical Review Letters
|September 26, 2012
PubMed
Summary
This summary is machine-generated.

A general relativistic mechanism generates early Universe matter perturbations through spikes in cosmological models. These spikes leave residual imprints on matter, influencing large-scale structure formation.

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Area of Science:

  • Cosmology
  • General Relativity
  • Astrophysics

Background:

  • The early Universe's evolution is crucial for understanding cosmic structure.
  • General relativistic effects in cosmological models can lead to complex phenomena.

Purpose of the Study:

  • To investigate a natural general relativistic mechanism for generating matter perturbations.
  • To analyze the role of spikes in cosmological models for creating inhomogeneities.

Main Methods:

  • Focusing on incomplete and recurring spikes within general cosmological models.
  • Examining G2 models to explicitly demonstrate spike-induced inhomogeneities.
  • Analyzing the gravitational instability of these inhomogeneities.

Main Results:

  • Spikes in G2 models generate inhomogeneities that result in matter perturbations.
  • Recurring spikes create non-local residual matter overdensities on surfaces.
  • These perturbations act as residual imprints on matter.

Conclusions:

  • The identified mechanism provides a source for early Universe matter perturbations.
  • Residual matter imprints from spikes may influence the formation of large-scale structure.
  • Further investigation into the physical consequences of these imprints is warranted.