Can magnetic fields of astrophysical objects be fundamental ?

Details Can magnetic fields of astrophysical objects be fundamental ? Can magnetic fields of astrophysical objects be fundamental ?

1997-03-21

arxiv.org/abs/gr-qc/9703054v1

Gen.Rel.Grav. 30 (1998) 5-13

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, LaTeX, 3 figures

Scientific paper

We analyze a new class of static exact solutions of Einstein-Maxwell-Dilaton gravity with arbitrary scalar coupling constant $\alpha$, representing a gravitational body endowed with electromagnetic dipole moment. This class possesses mass, dipole and scalar charge parameters. A discussion of the geodesic motion shows that the scalar field interaction is so weak that it cannot be measured in gravitational fields like the sun, but it could perhaps be detected in gravitational fields like pulsars. The scalar force can be attractive or repulsive. This gives rise to the hypothesis that the magnetic field of some astrophysical objects could be fundamental.

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