Derivation of the quadrupole moment of gravitational wave

Click For Summary
SUMMARY

The derivation of the quadrupole moment in the transverse traceless (TT) gauge for gravitational waves is essential for understanding gravitational radiation. The formula provided, QijTT(x) = ∫ρ(xixj-1/3δijr2)d3x, represents the reduced quadrupole moment, which is the trace-free component of the quadrupole moment. This derivation is commonly found in standard general relativity texts, confirming its foundational role in the study of gravitational waves. For further reading, the resource by Carroll offers a comprehensive explanation of this topic.

PREREQUISITES
  • Understanding of general relativity principles
  • Familiarity with gravitational wave physics
  • Knowledge of tensor calculus
  • Experience with mathematical integration in three dimensions
NEXT STEPS
  • Study the derivation of the quadrupole moment in general relativity texts
  • Explore the transverse traceless gauge in gravitational wave theory
  • Review the mathematical foundations of tensor calculus
  • Investigate the implications of gravitational waves on astrophysical phenomena
USEFUL FOR

Students and researchers in theoretical physics, particularly those focused on general relativity and gravitational wave research, will benefit from this discussion.

Shan K
Messages
73
Reaction score
0
Hi,
Can anyone give a derivation of the quadrupole moment in the TT gauge ( Equation metioned below ) of the gravitational wave ?

QijTT(x) = ∫ρ(xixj-1/3δijr2)d3x
Where ρ is the matter density

Thanks In Advance
 
Last edited:
Space news on Phys.org
Hi Shan K. Do you own any general relativity texts? The TT gauge quadrupole moment is derived in almost every standard general relativity text. What you have written down is the reduced quadrupole moment and is simply the trace-free part of the quadrupole moment. If you don't own a general relativity text then check this out: http://ned.ipac.caltech.edu/level5/March01/Carroll3/Carroll6.html
 

Similar threads

  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 19 ·
Replies
19
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 0 ·
Replies
0
Views
1K
Replies
1
Views
1K
  • · Replies 0 ·
Replies
0
Views
1K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 8 ·
Replies
8
Views
2K