To model the inspiral and merger of binary objects (blackholes or neutron stars), many researchers have been solving the Einstein equations numerically. Such simulation involves both the construction of gravitational initial data at time t_0 and its subsequent evolution to a final time t_F(») t_0. Interpretation of experimental detections of gravitational waves relies on numerical simulation. Moreover, detection of weak signals is facilitated by statistical techniques alongside "template banks" of numerically generated signals. We consider a nonstandard problem, solution of the Einstein equations reduced by helical symmetry, as described by Beetle, Bromley, Hernandez, and Price (BBHP) [1,2]. Heuristically, helical reduction is a data+evolution synthesis. Although solutions to the BBHP equations are ultimately unphysical, they may approximate the early phase of inspiral and serve as reduced order models.
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