Confusions created by Barycenters Jun 13, 2015 7:53:42 GMT
Post by Andrew on Jun 13, 2015 7:53:42 GMT
August 2, 2008 at 2:36 pm
Carsten Arnholm: When one says that something moves one must also say in relation to what. As the question was if the radio flux would have to be adjusted because of the Sun’s ‘movement’, the reference point was clearly the Earth. I gave an observational test that shows that the Earth also moves such that the distance between the Sun and the Earth is that corresponding to no other planets present [the Sun and the Earth moving around ‘their’ center of mass – to high precision, if we take the barycenter to be the arbitrary reference point], hence no ‘jerking around’ of the Sun by the other planets. Did you take the trouble to go check the Figures? Or the SORCE TSI? So, just as TSI is observed not to be influenced by the wiggle, so is the f10.7 flux also not affected, as that was the answer I gave. It is utterly amazing that people still don’t get this.
Svalgaard has not addressed the issue raised by Carsten?
No one can say the Sun does not feel the "wiggle". We can only say according to our current understanding the Sun does not feel the quite massive changes provided by the planets (ie millions of kms shifts from the SSB and a 100% change in radial velocity). As pointed out we are currently observing real physical changes on the Sun via Doppler measurements.
Leif is saying if you take the reference point of Earth, then the Sun is not observed to be jerked around by the other planets