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Table 1

Mass-age groups formed by the sample of Be stars entering the “observed” distribution Φ(u).

t/tMS ≤ 0.4 0.4 <t/tMS ≤ 0.8 t/tMS> 0.8

M/M t/tMS n M/M t/tMS n M/M t/tMS n
M/M ≤ 7.5 5.0 0.16 22 5.0 0.65 25 5.3 0.97 36
7.5 <M/M ≤ 15 9.4 0.19 17 10.7 0.61 32 10.5 0.95 52
15 <M/M ≤ 25 19.2 0.20 8 19.8 0.72 7 19.4 0.96 16

t/tMS< 0.5 t/tMS ≥ 0.5

M/M t/tMS n M/M t/tMS n M/M t/tMS n
M/M> 25 30.3 0.21 3 47.4 0.87 15 12.4 0.70 233

Notes. The global average mass and fractional age of the sample are given in the bottom right box.

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