Enhanced mass loss of very massive stars: Impact on the evolution, binary processes, and remnant mass spectrum

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Volume 701 (September 2025)

A&A, 701 (2025) A126

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Table 3.

Best fit of the stellar tracks within the 68% confidence interval for the massive stars R136a1, R136a2, and R136a3.

Ṁ	M_ZAMS	M_current	Age
	[M_⊙]	[M_⊙]	[Myr]

R136a1
Ṁ_rdw	315 $_{- 13}^{+ 11}$ $^{+11}_{-13}$	295 $_{- 16}^{+ 14}$ $^{+14}_{-16}$	0.61 $_{- 0.12}^{+ 0.14}$ $^{+0.14}_{-0.12}$
Ṁ_{Γ_e}	389 $_{- 64}^{+ 1}$ $^{+1}_{-64}$	202 $_{- 66}^{+ 12}$ $^{+12}_{-66}$	1.52 $_{- 0.17}^{+ 0.65}$ $^{+0.65}_{-0.17}$
Ṁ_L/M	359 $_{- 10}^{+ 30}$ $^{+30}_{-10}$	254 $_{- 44}^{+ 22}$ $^{+22}_{-44}$	0.52 $_{- 0.28}^{+ 0.44}$ $^{+0.44}_{-0.28}$

R136a2

Ṁ_rdw	240 $_{- 6}^{+ 6}$ $^{+6}_{-6}$	225 $_{- 8}^{+ 9}$ $^{+9}_{-8}$	0.81 $_{- 0.15}^{+ 0.12}$ $^{+0.12}_{-0.15}$
Ṁ_{Γ_e}	296 $_{- 20}^{+ 12}$ $^{+12}_{-20}$	169 $_{- 13}^{+ 13}$ $^{+13}_{-13}$	1.58 $_{- 0.16}^{+ 0.13}$ $^{+0.13}_{-0.16}$
Ṁ_L/M	260 $_{- 1}^{+ 130}$ $^{+130}_{-1}$	201 $_{- 80}^{+ 32}$ $^{+32}_{-80}$	0.92 $_{- 0.99}^{+ 0.47}$ $^{+0.47}_{-0.99}$

R136a3

Ṁ_rdw	241 $_{- 5}^{+ 5}$ $^{+5}_{-5}$	232 $_{- 9}^{+ 9}$ $^{+9}_{-9}$	0.53 $_{- 0.27}^{+ 0.21}$ $^{+0.21}_{-0.27}$
Ṁ_{Γ_e}	286 $_{- 25}^{+ 4}$ $^{+4}_{-25}$	180 $_{- 14}^{+ 42}$ $^{+42}_{-14}$	1.34 $_{- 0.77}^{+ 0.23}$ $^{+0.23}_{-0.77}$
Ṁ_L/M	257 $_{- 4}^{+ 39}$ $^{+39}_{-4}$	220 $_{- 41}^{+ 17}$ $^{+17}_{-41}$	0.64 $_{- 0.33}^{+ 0.68}$ $^{+0.68}_{-0.33}$

Notes. Column 1: Mass-loss recipe. Column 2: ZAMS mass of the model. Column 3: Current mass of the model. Column 4: Current age of the model.

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