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Table 1

Selected properties of TRGB models, computed by adopting either the LUNA reaction rate, or the NACRE one.

NACRE LUNA

0.8   M − Z = 0.0001 − Y = 0.245
log (L/L) 3.261 3.245
log (Teff) 3.643 3.644
Age(Myr) 12344.36 12361.32
McHe/M 0.4968 0.5000
Y env 0.253 0.252

0.8   M − Z = 0.002 − Y = 0.248
log (L/L) 3.367 3.352
log (Teff) 3.574 3.574
Age(Myr) 14744.69 14767.70
McHe/M 0.4825 0.4852
Y env 0.263 0.262

0.9   M − Z = 0.01 − Y = 0.259
log (L/L) 3.413 3.399
log (Teff) 3.516 3.518
Age(Myr) 14529.97 14539.97
McHe/M 0.4737 0.4760
Y env 0.279 0.279

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