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This article has an erratum: [https://doi.org/10.1051/0004-6361/201118287e]

Table 3

Linear least squares fits to the mass-loss rates.

Variable(s) Zero point Slope Slope χ2 BIC
log R  −13.76  ±  1.30 2.56  ±  0.74 25.25 31.52
log LR/M  −13.43  ±  1.26 0.92  ±  0.27 26.16 32.43
log L  −13.22  ±  1.23 1.42  ±  0.44 26.88 33.16
log Teff 52.17  ±  20.3  −17.2  ±  5.7 28.10 34.73
log R and log L  −13.90  ±  1.31 5.1  ±  3.4  −1.5  ±  2.1 24.65 34.09
log LR/M and log Teff 19.3  ±  27.0 0.65  ±  0.35  −8.8  ±  7.3 24.69 34.09
log L  −11.87  ±  0.78 0.99  ±  0.27 50.34 58.08 unweighted OLS
log LR/M  −11.83  ±  0.78 0.60  ±  0.17 50.55 58.30 unweighted OLS
log R  −11.16  ±  0.87 1.22  ±  0.49 57.67 65.21 unweighted OLS
log L  −12.00  ±  0.94 1.04  ±  0.31 BCES (OLS)
log LR/M  −11.90  ±  0.92 0.62  ±  0.19 BCES (OLS)

Notes. First entries are fits to the current sample (see Fig. 3). Last three entries includes literature mass-loss rates from modelling chromospheric lines in GC RGB stars (see Fig. 4).

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