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Table 4

Theoretical masses for O stars from rotating stellar models.

Spectral mini mevol mstart mend tstart,min tstart,max tend,min tend,max
type M⊙ M⊙ M⊙ M⊙ Myr Myr Myr Myr
O 2.0 If∗ 107 –27/+13 95 –33/+25 107 –45/+13 83 –21/+11 0.0 1.5 0.1 1.8
O 2.0 I 95 –18/+22 79 –19/+15 84 –24/+10 75 –14/+11 0.9 1.8 1.2 2.0
O 2.5 I 86 –14/+27 72 –14/+14 76 –18/+9 67 –9/+16 1.2 2.1 1.4 2.3
O 3.0 I 79 –10/+29 66 –10/+16 69 –12/+12 62 –7/+18 1.4 2.5 1.6 2.5
O 3.5 I 72 –8/+31 60 –8/+18 62 –10/+15 58 –5/+20 1.6 2.4 1.9 2.5
O 4.0 I 66 –7/+31 55 –9/+19 57 –7/+17 54 –7/+21 1.9 2.8 2.2 2.8
O 4.5 I 60 –4/+33 50 –5/+23 52 –6/+20 47 –3/+24 2.2 2.9 2.5 3.1
O 5.0 I 57 –5/+26 47 –4/+17 48 –5/+15 45 –2/+18 2.6 3.2 2.9 3.4
O 5.5 I 54 –6/+23 44 –3/+16 45 –4/+14 43 –2/+17 2.9 3.9 3.2 4.0
O 6.0 I 51 –6/+21 42 –3/+15 43 –4/+14 41 –2/+16 3.3 4.1 3.6 4.2
O 6.5 I 47 –6/+26 39 –3/+18 40 –4/+17 39 –3/+18 3.6 4.3 3.9 4.5
O 7.0 I 47 –9/+36 39 –5/+24 40 –6/+23 39 –5/+24 3.8 4.7 4.1 4.7
O 7.5 I 43 –7/+39 37 –4/+26 37 –5/+25 36 –4/+26 4.2 5.1 4.5 5.1
O 8.0 I 42 –7/+38 35 –4/+26 36 –5/+24 35 –3/+26 4.6 5.3 4.7 5.4
O 8.5 I 40 –7/+41 33 –4/+25 34 –4/+25 33 –3/+11 4.7 5.7 4.8 5.7
O 9.0 I 40 –9/+43 33 –5/+11 33 –5/+11 33 –4/+11 4.9 6.0 4.9 6.0
O 9.5 I 37 –8/+47 32 –5/+13 32 –5/+12 31 –5/+13 5.0 6.4 5.1 6.4
O 2.0 III 86 –12/+7 77 –18/+12 78 –19/+11 76 –17/+11 0.6 1.4 0.7 1.8
O 2.5 III 79 –10/+7 71 –14/+9 73 –16/+7 69 –12/+11 0.8 1.8 1.0 2.1
O 3.0 III 73 –8/+7 65 –11/+8 68 –13/+6 62 –8/+11 1.0 2.1 1.2 2.5
O 3.5 III 67 –7/+8 60 –8/+8 62 –7/+6 58 –6/+10 1.1 2.8 1.3 2.8
O 4.0 III 62 –6/+8 56 –6/+8 57 –5/+6 54 –5/+8 1.2 2.7 1.4 3.0
O 4.5 III 57 –6/+7 51 –4/+7 52 –5/+5 50 –3/+7 1.4 2.9 1.7 3.2
O 5.0 III 52 –6/+7 47 –5/+6 48 –6/+4 46 –4/+6 1.6 3.2 2.0 3.6
O 5.5 III 47 –7/+8 43 –5/+6 44 –6/+5 42 –4/+6 1.9 3.5 2.4 3.9
O 6.0 III 43 –6/+7 39 –4/+6 39 –5/+5 39 –4/+5 2.4 3.8 2.8 4.1
O 6.5 III 39 –5/+7 36 –4/+5 37 –4/+5 36 –4/+5 2.8 4.1 3.4 4.3
O 7.0 III 36 –5/+7 34 –4/+6 34 –4/+5 33 –4/+5 3.2 4.6 3.7 4.7
O 7.5 III 33 –5/+6 31 –4/+5 31 –5/+4 31 –4/+5 3.7 5.0 4.1 5.2
O 8.0 III 31 –6/+6 29 –5/+5 29 –5/+5 29 –5/+5 4.1 5.5 4.5 5.6
O 8.5 III 29 –5/+6 27 –4/+5 27 –4/+5 27 –4/+5 4.5 5.9 4.9 6.1
O 9.0 III 27 –5/+6 26 –4/+5 26 –4/+5 26 –4/+5 5.1 6.6 5.3 6.7
O 9.5 III 26 –5/+5 24 –4/+5 24 –4/+4 24 –4/+4 5.5 7.1 5.7 7.3
O 2.0 V 86 –11/+8 83 –23/+9 85 –25/+8 81 –21/+11 0.0 1.1 0.1 1.3
O 2.5 V 76 –12/+7 73 –10/+7 75 –11/+6 71 –8/+8 0.0 1.0 0.1 1.5
O 3.0 V 67 –9/+9 65 –7/+8 67 –9/+6 64 –6/+9 0.0 1.4 0.1 1.8
O 3.5 V 61 –8/+8 59 –6/+7 60 –7/+6 58 –5/+8 0.0 1.8 0.1 1.9
O 4.0 V 56 –8/+7 54 –6/+7 55 –7/+5 53 –5/+7 0.0 1.7 0.1 2.1
O 4.5 V 51 –8/+6 49 –6/+6 50 –7/+5 49 –6/+6 0.0 2.0 0.1 2.4
O 5.0 V 45 –7/+8 44 –6/+7 45 –7/+6 43 –5/+7 0.0 2.2 0.1 2.7
O 5.5 V 40 –7/+8 39 –6/+7 39 –6/+6 38 –5/+7 0.0 2.6 0.1 3.1
O 6.0 V 35 –7/+6 34 –6/+6 34 –6/+5 33 –6/+6 0.0 3.1 0.2 3.6
O 6.5 V 31 –7/+6 30 –6/+6 30 –6/+5 30 –6/+6 0.0 3.6 0.1 4.1
O 7.0 V 28 –6/+8 27 –5/+7 27 –5/+6 27 –5/+7 0.0 4.1 0.4 4.6
O 7.5 V 25 –5/+7 25 –5/+7 25 –5/+6 25 –5/+6 0.0 4.6 0.3 5.1
O 8.0 V 23 –6/+6 22 –5/+6 22 –5/+6 22 –5/+6 0.0 5.1 0.1 5.5
O 8.5 V 21 –6/+5 21 –6/+5 21 –6/+5 21 –6/+5 0.0 5.5 0.2 6.1
O 9.0 V 19 –5/+5 19 –5/+5 19 –5/+4 19 –5/+4 0.0 6.2 0.2 6.8
O 9.5 V 18 –5/+4 18 –5/+4 18 –5/+4 18 –5/+4 0.0 6.8 0.2 7.5

Notes. Theoretical masses for O stars from rotating solar metallicity stellar evolution models (Meynet & Maeder 2003). The first mass (mini) denotes the initial mass of the model weighted by the time the star resides in that spectral type. The weighting is done in order to present the most likely mass for a spectral type. The lower and upper mass limit show which range of initial masses can reach a certain spectral type. The mean mass of the star which stays longest in a certain spectral type is denoted by mevol. The third mass (mstart) is the mass with which the star starts when entering this spectral type while the fourth mass (mend) is the mass at the end of the stay in that particular spectral type. For each subclass is also given the minimal and maximal age the models when they enter it (tstart,min, tstart,max) and when the leave (tend,min, tend,max).

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