On gravitomagnetic precession around black holes

Details On gravitomagnetic precession around black holes On gravitomagnetic precession around black holes

1998-11-12

arxiv.org/abs/astro-ph/9811198v1

Astronomy and Astrophysics

Astrophysics

Accepted for publication in MNRAS. MN-Latex, 2 figures

Scientific paper

10.1046/j.1365-8711.1999.02307.x

We compute exactly the Lense-Thirring precession frequency for point masses in the Kerr metric, for arbitrary black hole mass and specific angular momentum. We show that this frequency, for point masses at or close to the innermost stable orbit, and for holes with moderate to extreme rotation, is less than, but comparable to the rotation frequency. Thus, if the quasi periodic oscillations (QPOs) observed in the modulation of the X-ray flux from some black holes candidates are due to Lense-Thirring precession of orbiting material, we predict that a separate, distinct QPO ought to be observed in each object.

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