Basic HTML version of Foils prepared 15 March 1996

Foil 11 Why Study General Relativity Numerically

From Numerical Formulation and Solution of Collision 0f two Black Holes CPSP713 Case studies in Computational Science -- Spring Semester 1996. by Geoffrey C. Fox


1 Newtonian gravity is linear (weak field) limit of General Relativity
2 Tests of General Relativity --
  • Small deviations from Newton's laws in planetary orbits
  • Energy loss in Binary Neutron Stars from Gravitational wave radiation
  • Bending of light in strong gravitational fields
3 New experiments will directly observe gravitational waves due to interactions with sensitive detectors on earth
  • LIGO in Louisiana and Washington State(Hanford)
  • VIRGO in Europe
4 Can estimate that Computations of Gravitational Waves from black hole collision would take 100,000 hours on a Cray-YMP
  • 10 Hours on a Teraflop Machine
5 Estimate that LIGO will sensitivity to detect black hole gravitational waves around the year 2005

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