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Table 2.

Angular distance from the nucleus and propagation time.

Region Angular size (arcsec) Propagation time (Myr)
Lower 1 0.64 3.21
Higher 1 1.08 5.43
Lower 2 1.27 6.38
Higher 2 1.75 8.84
Lower 3 2.00 10.08
Higher 3 2.44 12.30

Notes. Distances are taken to the inner and outer edges of each cloud. Their corresponding propagation times are computed from Eq. (2). Each distance is taken from the apex of the cone to the associated region indicated in Fig. 3.

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