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Does gravitational waves participate in gravitation interaction?

  1. Apr 24, 2007 #1
    Does gravitational waves participate in gravitation interaction??

    Does gravitational waves participate in gravitation interaction??
    When gravitational waves pass through the sun ,it will deflect??

    Thank you in advance!
     
    Last edited: Apr 25, 2007
  2. jcsd
  3. Apr 25, 2007 #2

    pervect

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    Gravitational waves carry energy, as per the sticky bead argument

    In weak field gravity, one can consider gravity waves to have an "effective stress-energy tensor". This effective energy can't be precisely located, but can be averaged out over a wavelength. While this is only an approximation, it gives the best understanding of how gravity waves act in the weak field. Our solar system, including the sun, is "weak field" as far as GR goes. Thus, gravity waves will be deflected by the sun in the same manner that light will. Since gravity waves have momentum, the sun should also move when the gravity waves are deflected, but in the case where the weak field approximation applies this deflection is negligible and can be and is usually ignored.

    In the strong field, gravity waves aren't explicitly included in stress-energy tensor. Instead they arise naturally from the nonlinearites in Einstein's field equations. Thus in the strong field, gravity waves are viewed as geometry, rather than energy. Of course the weak field and the strong field approaches give approximately the same answer empirically in the region where the weak field approximation is justifiable.
     
  4. May 3, 2007 #3
    I agree with you !!
     
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