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Table 4

Derived values for each structure and the percentage they represent over the total value of the nebula.

Structure Mass (M) | (%) Kinetic Energy (erg) | (%) Scalar Lin. Mom. (g cm s−1) | (%) Radiation press. timescale (a)
Shell 0.4 I 52% 4.5 1045 | 70% 2.6 1039 | 64% 6.3 104
Ring 0.2 | 29% 8.0 1044 | 12% 8.4 1038 | 21% 2.0 104
Cylinder 0.1 | 17% 1.81044 | 3% 3.0 1038 | 7% 7.1 103
Tips out (each) 1.0 10−2 | 1% 4.3 1044 | 6.5% 1.4 1038 | 3% 3.4 103
Tips in (each) 4.0 10−4 | 0.05% 1.4 1043 | 0.2% 4.7 1036 | 0.1% 1.1 102
Spheres (each) 1.9 10−3 | 0.2% 4.5 1043 | 0.7% 1.7 1037 | 0.4% 4.1 102

Notes. The “radiation pressure timescale” is defined as the timescale needed for radiation pressure to provide the same linear momenta. All values present a 20% error due to the abundance-density degeneracy.

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