Gravity Waves

  • Thread starter exmarine
  • Start date
  • #36
lsume
8
0
I am trying to learn GRT so I can answer questions for myself. But I might croak first, so I’ll ask here. That gravity wave interferometer they are building out in Richland, Washington - I obviously haven’t read all the technical papers on their web site, but I am pretty sure one I did read showed a spectrogram or PSD with search frequencies of 40 Hz and above. I understand that the behavior of the Taylor-Hulse binary is the only empirical evidence we have so far of gravity waves - and its orbital period is around 8 hours. Can anyone explain why they are looking at such high frequencies? Shouldn’t we be looking for ultra-low frequency waves with periods like 8 hours (or maybe half that for these type waves)? Do we expect stuff falling into a black hole to emit broad-band high frequency gravity waves? Thanks for any enlightenment.
With the recent discovery of gravitational waves, I have a question. Knowing the frequency and wave length of these waves, can a harmonic wave increase gravity in the sphere of influence and conversely can gravitational force be eliminated or reduced by generating a wave 180 degrees out of phase with the gravity wave. I suppose there are many wondering the same thing.
 
  • #37
haael
538
35
No. Gravity waves don't cancel the gravity attraction, just as light doesn't cancel magnetic attraction.

What gravity waves could cancel are tidal forces. In a pretty boring way.
 

Suggested for: Gravity Waves

Replies
2
Views
260
  • Last Post
Replies
2
Views
588
Replies
20
Views
571
  • Last Post
Replies
4
Views
847
  • Last Post
Replies
3
Views
264
  • Last Post
Replies
34
Views
786
  • Last Post
Replies
5
Views
799
  • Last Post
Replies
6
Views
408
  • Last Post
Replies
6
Views
268
  • Last Post
2
Replies
69
Views
2K
Top