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frame-dragging

In Newtonian gravity , the gravitational field of a mass is independent of whether or not that mass rotates. In general relativity , a mass's rotation influences the motion of objects in its neighbourhood. Put simply, the rotating mass "drags along" space-time in the vicinity.

This is known as Lense-Thirring effect or frame-dragging. Sometimes, frame-dragging is also used in a more general sense that includes additional general-relativistic effects associated with the movement of sources of gravity. There is an analogy between gravity and  electromagnetism in which ordinary gravity corresponds to the electrostatic force , and the field components responsible for frame-dragging to *magnetism*. For this reasons, these effects also go by the name of gravitomagnetism.


Varianten

  • Lense-Thirring effect
  • Gravitomagnetism