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General Relativity and Gravitation

, Volume 40, Issue 12, pp 2515–2532 | Cite as

Particle motion and electromagnetic fields of rotating compact gravitating objects with gravitomagnetic charge

  • A. A. Abdujabbarov
  • B. J. Ahmedov
  • V. G. Kagramanova
Research Article

Abstract

The exact solution for the electromagnetic field occuring when the Kerr–Taub–NUT compact object is immersed (i) in an originally uniform magnetic field aligned along the axis of axial symmetry (ii) in dipolar magnetic field generated by current loop has been investigated. Effective potential of motion of charged test particle around Kerr–Taub–NUT gravitational source immersed in magnetic field with different values of external magnetic field and NUT parameter has been also investigated. In both cases presence of NUT parameter and magnetic field shifts stable circular orbits in the direction of the central gravitating object. Finally we find analytical solutions of Maxwell equations in the external background spacetime of a slowly rotating magnetized NUT star. The star is considered isolated and in vacuum, with monopolar configuration model for the stellar magnetic field.

Keywords

General relativity Kerr–Taub–NUT spacetime Electromagnetic fields Particle motion 

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • A. A. Abdujabbarov
    • 1
  • B. J. Ahmedov
    • 1
    • 2
  • V. G. Kagramanova
    • 3
  1. 1.Institute of Nuclear Physics and Ulugh Beg Astronomical InstituteTashkentUzbekistan
  2. 2.The Abdus Salam International Centre for Theoretical PhysicsTriesteItaly
  3. 3.Institute for PhysicsOldenburg UniversityOldenburgGermany

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