Now showing items 1-6 of 6

    • C 3 matching for asymptotically flat spacetimes 

      Gutiérrez-Piñeres A.C.; Quevedo H. (Institute of Physics Publishing, 2019)
      We propose a criterion for finding the minimum distance at which an interior solution of Einstein's equations can be matched with an exterior asymptotically flat solution. The location of the matching hypersurface is thus ...
    • Conformastatic disk-haloes in Einstein-Maxwell gravity 

      Gutiérrez-Piñeres A.C.; González G.A.; Quevedo H. (2013)
      We present a relativistic model describing a thin disk surrounded by a halo in the presence of an electromagnetic field. The model is obtained by solving the Einstein-Maxwell equations on a particular conformastatic spacetime ...
    • Motion of test particles in the field of a naked singularity 

      Boshkayev K.; Gasperín E.; Gutiérrez-Piñeres A.C.; Quevedo H.; Toktarbay S. (American Physical Society, 2016)
      We investigate the motion of test particles in the gravitational field of a static naked singularity generated by a mass distribution with a quadrupole moment. We use the quadrupole metric (q metric) which is the simplest ...
    • Newman–Janis Ansatz in conformastatic spacetimes 

      Gutiérrez-Piñeres A.C.; Quevedo H. (Springer New York LLC, 2016)
      The Newman–Janis Ansatz was used first to obtain the stationary Kerr metric from the static Schwarzschild metric. Many works have been devoted to investigate the physical significance of this Ansatz, but no definite answer ...
    • Test particles in a magnetized conformastatic spacetime 

      Gutiérrez-Piñeres A.C.; Capistrano A.J.S.; Quevedo H. (American Physical Society, 2016)
      A class of exact conformastatic solutions of the Einstein-Maxwell field equations is presented in which the gravitational and electromagnetic potentials are completely determined by a harmonic function. We derive the ...
    • Variational thermodynamics of relativistic thin disks 

      Gutiérrez-Piñeres A.C.; Lopez-Monsalvo C.S.; Quevedo H. (Springer New York LLC, 2015)
      We present a relativistic model describing a thin disk system composed of two fluids. The system is surrounded by a halo in the presence of a non-trivial electromagnetic field. We show that the model is compatible with the ...