Table 6.
Second-order polynomial MCMC fitting parameters of the clusters’ [Fe/H] as a function of the Galactic radius (RGC), the Z component of the Galactic angular momentum (LZ), and the total Galactic energy (En) for six age groups.
| Age (Gyr) | Par. | RGC | LZ/103 | En/105 |
|---|---|---|---|---|
| a6 | 0.066  |
0.423  |
6.343  |
|
| > 4 | b6 | −1.379 |
−2.037  |
17.821  |
| c6 | 7.019  |
2.278  |
12.331 |
|
| a5 | 0.004  |
0.177  |
3.203  |
|
| [2, 4] | b5 | −0.143 |
−1.196  |
7.673  |
| c5 | 0.894  |
1.621  |
4.198  |
|
| a4 | 0.005  |
0.037  |
−1.522  |
|
| [1, 2] | b4 | −0.170 |
−0.459  |
−5.670  |
| c4 | 1.026  |
0.685  |
−5.182  |
|
| a3 | −0.002 |
−0.371  |
−6.969  |
|
| [0.5, 1] | b3 | −0.017 |
1.349  |
−21.900 |
| c3 | 0.274  |
−1.233  |
−17.206 |
|
| a2 | −0.009 |
−0.215  |
−4.113  |
|
| [0.1, 0.5] | b2 | 0.122  |
0.611  |
−13.651 |
| c2 | −0.383 |
−0.402  |
−11.297 |
|
| a1 | −0.005 |
−0.135  |
−2.439  |
|
| < 0.1 | b1 | 0.044  |
0.406  |
−8.025  |
| c1 | −0.027 |
−0.277  |
−6.577  |
|
Notes. (a6, b6, c6) stands for the age > 4 Gyr group, (a5, b5, c5) stands for the 2 Gyr < age < 4 Gyr group, (a4, b4, c4) stands for the 1 Gyr < age < 2 Gyr group, (a3, b3, c3) stands for the 0.5 Gyr < age < 1 Gyr group, (a2, b2, c2) stands for the 0.1 Gyr < age < 0.5 Gyr group, and (a1, b1, c1) are the age < 0.1 Gyr group. The range of each parameter marks the 16% and 84% of the MCMC fitting sample distribution.
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