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Table 2

Mean values of the fractional AGB contribution to the total luminosity in the 2MASS Ks-band (Skrutskie et al. 1997) for our integrated stellar populations as a function of age (Cols. 2 and 6).

Z = 0.004 Z = 0.008
t(Gyr) N = 10 N = 100 N = 1000 t(Gyr) N = 10 N = 100 N = 1000
0.07 0.255 ± 0.046 0.258 ± 0.017 0.261 ± 0.005 0.07 0.188 ± 0.043 0.189 ± 0.016 0.191 ± 0.004
0.10 0.494 ± 0.082 0.501 ± 0.028 0.506 ± 0.009 0.11 0.347 ± 0.073 0.349 ± 0.026 0.353 ± 0.008
0.17 0.440 ± 0.086 0.439 ± 0.030 0.446 ± 0.009 0.18 0.330 ± 0.088 0.338 ± 0.031 0.343 ± 0.009
0.35 0.397 ± 0.120 0.413 ± 0.043 0.423 ± 0.012 0.38 0.345 ± 0.122 0.373 ± 0.043 0.378 ± 0.013
0.51 0.455 ± 0.141 0.491 ± 0.047 0.501 ± 0.014 0.57 0.405 ± 0.147 0.436 ± 0.051 0.445 ± 0.015
1.05 0.624 ± 0.137 0.662 ± 0.036 0.670 ± 0.011 1.19 0.452 ± 0.147 0.506 ± 0.049 0.512 ± 0.015
1.30 0.406 ± 0.163 0.445 ± 0.051 0.456 ± 0.016 1.44 0.280 ± 0.130 0.321 ± 0.045 0.327 ± 0.014
2.12 0.197 ± 0.093 0.222 ± 0.034 0.226 ± 0.011 2.40 0.175 ± 0.086 0.199 ± 0.032 0.201 ± 0.011
4.21 0.158 ± 0.067 0.175 ± 0.025 0.178 ± 0.008 4.89 0.142 ± 0.069 0.160 ± 0.028 0.161 ± 0.018

Notes. The number N of AGB stars in the simulations and the two chemical compositions are indicated. Results for the cases with 30 and 300 AGB stars are omitted. The 1σ spreads are determined from the fluctuations in the 100 MC simulations for each case.

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