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 ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
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.
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 ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
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.
RE: Yeah... when I think
)
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 ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
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
RE: Hmm... In all the
)
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 ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
RE: Hmm... In all the
)
See this notice in CERN Courier:
relativity test
Tullio