Dissipation for Euler's Disk and a Desktop Demonstration of Coalescing Neutron Stars

Details Dissipation for Euler's Disk and a Desktop Demonstration of Coalescing Neutron Stars Dissipation for Euler's Disk and a Desktop Demonstration of Coalescing Neutron Stars

2001-02-11

arxiv.org/abs/gr-qc/0102046v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Submitted to American Journal of Physics

Scientific paper

I show that the recent calculation of Moffatt's regarding the viscous dissipation of a spinning coin overlooked the importance of the finite width of the viscous boundary layer. My new estimates are more in accord with that observed. I also point out that the frequency ``chirp'' of the specially designed toy ``Euler's Disk'' is similar to that expected during the last few minutes of the life of a coalescing binary of two neutron stars. As such, this toy is an excellent desktop demonstration for the expected phenomena.

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