Quote:
Originally Posted by Hornblower
There is no obstacle to gravitational action on the Sun's core. In one of the great mysteries of the cosmos, everything appears to be totally transparent to gravity.
What Ray is asking is about the possibility that the gravitational acceleration of the Sun's hot core might be different from that of a cold object, for relativistic reasons. I would yield to current experts on general relativity to analyze that one.
I see no merit to the angular momentum idea, for reasons I have expressed in prior threads.
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I have generally had little joy with GR experts. I find that they often say things like "but that bending of light is half due to gravity and half due to the metric" or something similar. When I ask did the vector of the light change by 1 or 2 as a result of passing near the Sun they go quiet. I don't think that that sort of words helps. Observation shows that light is bent twice as much. That is sufficient for my purposes. However I mentioned just now G D Birkhoff (a famous mathematician) who gave the equations for GR in a form that is more like vectors and stuff that I can understand. He said that GR people say that this 2x effect is not real even then, but he says it most certainly is. His description also says that it applies to matter at relativistic velocities. I have discovered recently that in fact the relativistic part of the mass of matter in the Sun (i.e. leaving out the rest mass) is actually much greater than the radiation content. My argument only gets stronger in this case.