Globular Clusters in M81
Globular Clusters in M81
Globular Clusters in M81
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Spiral Galaxy GC Comparisons:Metallicity• M31 and MW have clearly bimodal GC distributions;<strong>M81</strong> probably bimodal as well• M31, MW, & <strong>M81</strong> metallicity peaks similar, and allconsistent with GC metallicity-galaxy lum<strong>in</strong>osityrelations for MR and MP peaks• M31, MW, & <strong>M81</strong> all show signs of metallicitygradients as a function of galactocentric distance