Open Access
Table A.1.
Globular cluster number ratios (R1 and R2) for different ages and initial He enrichment
NGC 4590 − [Fe/H] = −2.2 − Z = 0.0002 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Age [Gyr] | 9.0 | 9.5 | 10.0 | 10.5 | 11.0 | 11.5 | 12.0 | 12.5 | 13.0 | 13.5 | 14.0 |
Y = 0.248 | |||||||||||
R1 | - | 0.39 | 0.39 | 0.38 | 0.37 | 0.35 | 0.33 | 0.31 | 0.31 | 0.31 | 0.43 |
R2 | - | 0.18 | 0.17 | 0.15 | 0.14 | 0.14 | 0.14 | 0.13 | 0.13 | 0.13 | 0.05 |
Y = 0.26 | |||||||||||
R1 | - | - | - | 0.39 | 0.38 | 0.36 | 0.34 | 0.33 | 0.32 | 0.35 | 0.36 |
R2 | - | - | - | 0.13 | 0.13 | 0.13 | 0.13 | 0.13 | 0.13 | 0.11 | 0.09 |
Y = 0.27 | |||||||||||
R1 | - | - | 0.41 | 0.40 | 0.39 | 0.39 | 0.38 | 0.37 | 0.38 | 0.36 | 0.38 |
R2 | - | - | 0.14 | 0.13 | 0.13 | 0.13 | 0.13 | 0.12 | 0.10 | 0.09 | 0.08 |
Y = 0.3 | |||||||||||
R1 | 0.47 | 0.46 | 0.47 | 0.46 | 0.44 | 0.42 | 0.40 | 0.36 | 0.37 | 0.33 | - |
R2 | 0.11 | 0.11 | 0.11 | 0.11 | 0.11 | 0.10 | 0.10 | 0.09 | 0.05 | 0.05 | - |
Y = 0.33 | |||||||||||
R1 | 0.50 | 0.50 | 0.48 | 0.50 | 0.43 | - | - | - | - | - | - |
R2 | 0.11 | 0.11 | 0.11 | 0.11 | 0.09 | - | - | - | - | - | - |
Y = 0.37 | |||||||||||
R1 | 0.47 | 0.44 | 0.42 | - | - | - | - | - | - | - | - |
R2 | 0.07 | 0.06 | 0.05 | - | - | - | - | - | - | - | - |
NGC 6752 − [Fe/H] = −1.53 − Z = 0.0009 | |||||||||||
Age [Gyr] | 9.0 | 9.5 | 10.0 | 10.5 | 11.0 | 11.5 | 12.0 | 12.5 | 13.0 | 13.5 | 14.0 |
Y = 0.248415 | |||||||||||
R1 | 0.36 | 0.33 | 0.36 | 0.35 | 0.38 | 0.38 | 0.36 | 0.38 | 0.38 | 0.36 | 0.38 |
R2 | 0.16 | 0.17 | 0.17 | 0.17 | 0.16 | 0.16 | 0.17 | 0.15 | 0.15 | 0.15 | 0.12 |
Y = 0.27 | |||||||||||
R1 | 0.45 | 0.45 | 0.43 | 0.40 | 0.37 | 0.40 | 0.40 | 0.38 | 0.35 | 0.31 | - |
R2 | 0.11 | 0.12 | 0.14 | 0.14 | 0.14 | 0.13 | 0.12 | 0.11 | 0.09 | 0.05 | - |
Y = 0.3 | |||||||||||
R1 | 0.47 | 0.48 | 0.49 | 0.48 | 0.51 | 0.46 | 0.40 | 0.35 | 0.28 | - | - |
R2 | 0.10 | 0.10 | 0.10 | 0.10 | 0.13 | 0.11 | 0.07 | 0.04 | 0.02 | - | - |
NGC 2808 − [Fe/H] = −1.15 − Z = 0.002 | |||||||||||
Age [Gyr] | 9.0 | 9.5 | 10.0 | 10.5 | 11.0 | 11.5 | 12.0 | 12.5 | 13.0 | 13.5 | 14.0 |
Y = 0.249 | |||||||||||
R1 | 0.45 | 0.45 | 0.45 | 0.43 | 0.42 | 0.43 | 0.42 | 0.42 | 0.42 | - | - |
R2 | 0.12 | 0.11 | 0.11 | 0.10 | 0.10 | 0.11 | 0.11 | 0.11 | 0.11 | - | - |
Y = 0.26 | |||||||||||
R1 | 0.46 | 0.47 | 0.44 | 0.44 | 0.44 | 0.45 | 0.45 | 0.46 | 0.32 | 0.29 | 0.22 |
R2 | 0.11 | 0.10 | 0.10 | 0.10 | 0.10 | 0.11 | 0.11 | 0.15 | 0.06 | 0.05 | 0.04 |
Y = 0.27 | |||||||||||
R1 | - | 0.44 | 0.46 | 0.45 | 0.47 | 0.49 | 0.45 | 0.42 | 0.38 | 0.31 | 0.24 |
R2 | - | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.12 | 0.11 | 0.10 | 0.05 | 0.03 |
Y = 0.3 | |||||||||||
R1 | 0.49 | 0.50 | 0.50 | 0.50 | 0.49 | 0.49 | - | - | - | - | - |
R2 | 0.09 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | - | - | - | - | - |
Y = 0.33 | |||||||||||
R1 | 0.53 | 0.54 | 0.44 | - | - | - | - | - | - | - | - |
R2 | 0.09 | 0.09 | 0.07 | - | - | - | - | - | - | - | - |
Y = 0.37 | |||||||||||
R1 | 0.40 | - | - | - | - | - | - | - | - | - | - |
R2 | 0.04 | - | - | - | - | - | - | - | - | - | - |
NGC 6441 − [Fe/H] = -0.5 − Z = 0.008 | |||||||||||
Age [Gyr] | 9.0 | 9.5 | 10.0 | 10.5 | 11.0 | 11.5 | 12.0 | 12.5 | 13.0 | 13.5 | 14.0 |
Y = 0.255 | |||||||||||
R1 | 0.36 | 0.35 | 0.35 | 0.35 | 0.36 | 0.37 | 0.38 | 0.39 | 0.41 | 0.43 | 0.44 |
R2 | 0.10 | 0.12 | 0.13 | 0.13 | 0.13 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 |
Y = 0.27 | |||||||||||
R1 | 0.41 | 0.41 | 0.42 | 0.42 | 0.42 | 0.45 | 0.47 | 0.47 | 0.47 | 0.45 | - |
R2 | 0.13 | 0.13 | 0.14 | 0.15 | 0.16 | 0.15 | 0.15 | 0.14 | 0.12 | 0.11 | - |
Y = 0.3 | |||||||||||
R1 | - | 0.49 | 0.50 | 0.50 | 0.50 | 0.51 | 0.50 | 0.51 | 0.42 | 0.39 | - |
R2 | - | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.08 | 0.07 | - |
Y = 0.33 | |||||||||||
R1 | 0.51 | 0.53 | 0.54 | 0.56 | 0.57 | 0.58 | 0.51 | - | - | - | - |
R2 | 0.08 | 0.09 | 0.09 | 0.09 | 0.09 | 0.10 | 0.09 | - | - | - | - |
Notes. For the sake of clarity, empty rows of isochrones with the highest Y values are not shown
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