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View Full Version : Lumpy Neutron Stars can Generate Gravitational Waves



Fraser
2008-Apr-02, 02:00 PM
A new simulation of neutron stars suggest they may not be as smooth as predicted. The rapidly spinning exotic bodies may have significant topological features like mountains. These "lumps" on the star's surface may cause fluctuations in space-time as the variation of the huge gravitational field varies on each spin. This fluctuation may generate gravitational [...]

More... (http://www.universetoday.com/2008/04/02/lumpy-neutron-stars-can-generate-gravitational-waves/)

trinitree88
2008-Apr-04, 12:47 AM
A new simulation of neutron stars suggest they may not be as smooth as predicted. The rapidly spinning exotic bodies may have significant topological features like mountains. These "lumps" on the star's surface may cause fluctuations in space-time as the variation of the huge gravitational field varies on each spin. This fluctuation may generate gravitational [...]

More... (http://www.universetoday.com/2008/04/02/lumpy-neutron-stars-can-generate-gravitational-waves/)

Fraser. I don't think there is a material with a Young's Modulus sufficient to withstand the smoothing forces on the surface of a neutron star, and that the postulate of "mountains" even centimeters high is quite unlikely....it's why wormholes made of degenerate matter are equally unlikely. pete



see:http://en.wikipedia.org/wiki/Young's_modulus

and since the second link gives the escape velocity as ~ c/2....an incoming piece of debris should reach that from ~ infinity....and go splat in a big way without making any "mountain"....see:http://www.sr.bham.ac.uk/xmm/gravity.html