Abundance distributions [Z/H]

Abundance distributions, [Z/H], which is measured logarithmically relative to solar values. The fainter GCs (lower line) show a significant bimodal distribution, with both groups having average abundance less than solar values. The brighter GCs (upper line, offset for clarity) are consistent with a single abundance distribution. Open circles show uncertainties of the histogram bins.

Credit:

NOIRLab/Gemini Observatory/AURA/NSF

About the Image

Id:geminiann13006b
Type:Chart
Release date:March 28, 2013, 12:44 p.m.
Related announcements:geminiann13006
Size:500 x 500 px

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