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Table 1

Evolution rates calculated numerically, (drp/ dt)n, and analytically as indicated above, (drp/ dt)a, for different values of the mass ratio q.

q (drp/ dt)n (drp/ dt)a

0.0001 –2.1e-6 –2.8e-6
0.0005 –1.6e-5 –1.4e-5
0.001 –3.4e-5 –2.8e-5
0.003 –7.9e-5 –8.3e-5

Notes. The evolution rates, time-averaged over several orbits and evaluated at early times, are in units , where P0 is the initial orbital period of the perturber. The softening length for these calculations was taken to be 0.6H.

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