The Old Halo metallicity gradient:
the trace of a self-enrichment process: Table 2. |
[Fe/H] | logD | n |
-1.2  [Fe/H] < -0.8 -1.6  [Fe/H] < -1.2 -2.0  [Fe/H] < -1.6 -2.4  [Fe/H] < -2.0 |
0.41 0.64 0.89 1.02 |
13 28 25 9 |