Einstein was right (+/- 0.05%)

Mike Hewson
Mike Hewson
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RE: Yeah... when I think

Message 45942 in response to message 45941

Quote:
Yeah... when I think of light diffracting through a glass lens, the photons at different frequencies will be diffracted by different amounts (as with a prism). But the photons in the light that's curved around a star by the warped spacetime don't separate into their individual colors, right? They're all curved by the same amount, regardless of frequency? So then 'warp' and 'curve' are probably best. Thanks, Mike :)


There's no frequency dependence ( no 'chromatic abberation' ).
They've done a pretty impressive study
- find a pulsar
- does it have a pulsar partner?
- watch and measure for several years
- get the orbital dynamics and parameters squared up
- adjust/compensate for all the bloody movements so that one can subtract away to get the remainder - the 'pure' GR elements.
Cheers, Mike.

I have made this letter longer than usual because I lack the time to make it shorter. Blaise Pascal

Ben Owen
Ben Owen
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Hmm... In all the ruckus

Hmm...

In all the ruckus over testing GR parameters, nobody here mentioned another interesting thing about the double pulsar: It dramatically increased the predicted event rates of binary neutron star inspirals in the LIGO band. Almost an order of magnitude, in fact.

Ben

Mike Hewson
Mike Hewson
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RE: Hmm... In all the

Message 45944 in response to message 45943

Quote:
Hmm...
In all the ruckus over testing GR parameters, nobody here mentioned another interesting thing about the double pulsar: It dramatically increased the predicted event rates of binary neutron star inspirals in the LIGO band. Almost an order of magnitude, in fact.Ben


Cool! That ups the odds then .... :-)
Oooh ..... we're going to be ( more ) busy :-)
Cheers, Mike.

I have made this letter longer than usual because I lack the time to make it shorter. Blaise Pascal

tullio
tullio
Joined: 22 Jan 05
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RE: Hmm... In all the

Message 45945 in response to message 45943

Quote:

Hmm...

In all the ruckus over testing GR parameters, nobody here mentioned another interesting thing about the double pulsar: It dramatically increased the predicted event rates of binary neutron star inspirals in the LIGO band. Almost an order of magnitude, in fact.

Ben


See this notice in CERN Courier:
relativity test
Tullio

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