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Gravitational collapse of a magnetized fermion gas with finite temperature

  • I. Delgado GasparEmail author
  • A. Pérez Martínez
  • Roberto A. Sussman
  • A. Ulacia Rey
Regular Article - Theoretical Physics

Abstract

We examine the dynamics of a self-gravitating magnetized fermion gas at finite temperature near the collapsing singularity of a Bianchi-I spacetime. Considering a general set of appropriate and physically motivated initial conditions, we transform Einstein–Maxwell field equations into a complete and self-consistent dynamical system amenable for numerical work. The resulting numerical solutions reveal the gas collapsing into both, isotropic (“point-like”) and anisotropic (“cigar-like”), singularities, depending on the initial intensity of the magnetic field. We provide a thorough study of the near collapse behavior and interplay of all relevant state and kinematic variables: temperature, expansion scalar, shear scalar, magnetic field, magnetization, and energy density. A significant qualitative difference in the behavior of the gas emerges in the temperature range T/m f ∼10−6 and T/m f ∼10−3.

Keywords

Finite Temperature Compact Object Particle Number Density Initial Shear Anisotropic Pressure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The work of A.P.M, A.U.R and I.D.G has been supported by Ministerio de Ciencia, Tecnología y Medio Ambiente under the grant CB0407 and the ICTP Office of External Activities through NET-35. A.P.M. acknowledges the hospitality of ICN-UNAM and the financial support of ICyTDF-CLAF fellowship programme. R.A.S. and A.U.R. acknowledge support from the research grant SEP–CONACYT–132132, and the TWAS-CONACYT fellowships.

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Copyright information

© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica 2013

Authors and Affiliations

  • I. Delgado Gaspar
    • 1
    Email author
  • A. Pérez Martínez
    • 2
  • Roberto A. Sussman
    • 3
  • A. Ulacia Rey
    • 2
    • 3
  1. 1.Instituto de Geofísica y Astronomía (IGA)La HabanaCuba
  2. 2.Instituto de Cibernética, Matemática y Física (ICIMAF)La HabanaCuba
  3. 3.Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México (ICN-UNAM)MéxicoMexico

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