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Table 5:

LGRBs rates estimated with the first approach.

Mass category
Number of Be/Oe stars LGRBs base rates Proba 5$^\circ$ Proba 10$^\circ$ Proba 15$^\circ$
B2e to O8e 4978-6110 3.9-4.8 $\times$ 10-4 2.5-3.1 $\times$ 10-7 1.0-1.2 $\times$ 10-7 2.3-2.8 $\times$ 10-6
B1e to O8e 2774-3244 2.6-3.0 $\times$ 10-4 1.7-1.9 $\times$ 10-7 6.7-7.7 $\times$ 10-7 1.5-1.7 $\times$ 10-6
B0e to O8e 1483-1551 1.7-1.8 $\times$ 10-4 1.1-1.2 $\times$ 10-7 4.4-4.6 $\times$ 10-7 0.98-1.0 $\times$ 10-6
O9e to O8e 257-294 5.3-6.2 $\times$ 10-5 3.4-4.0 $\times$ 10-8 1.4-1.6 $\times$ 10-7 3.1-3.6 $\times$ 10-7
O8e 118-135 2.4-2.8 $\times$ 10-5 1.6-1.8 $\times$ 10-8 6.2-7.2 $\times$ 10-8 1.4-1.6 $\times$ 10-7


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