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Originally Posted by sirius0
Perhaps the space around galaxys like ours are different. It was recently demonstrated that the earthwarps space as it rotates. i have often thought that spiral galaxys like ours are reminisent of drain turbulence, quite ordered like a rotating wave with a period and nodes and antinodes. What if the rotation of the galaxy, including the dense centre, causes a distortion in space that is responsible for the spiral form? The antinodes could then be a place of matter concentration. In other words gravuty or some other effect could in this situation have an angular dependancy allowing it to have a greater concentration to a greater distance than if it is uniform for a given radius. Could this explain the apparent lack of matter? Doesanyone know exactly how they do there calculatuions presently? Or a text?
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Hi all this is my first on this new combined forum. The above quote is from a similiar Thread to this. I think the main point i was trying to make was that there is perhaps an angular dependance to gravity when it is being frame dragged. Similiar to the pattern seen around a drain hole. Add to this the effect of the stars themselves i.e. they once gathered in an arm will have a mutual gravitational effect: which will enhance the angular dependance. Intuitivilly i doubt that if the idea of frame dragging can have an angualar dependance then i doubt that it would be observable in the current results about the earth's frame dragging.