| Detection of the Tip of Red Giant Branc in NGC 5128 (2004) | |||||||||
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Abstract | |||||||||
| We present a color-magnitude diagram of more than 10,000 stars in the halo of galaxy NGC 5128 (Centaurus A), based on WFPC2 images through the V and I filters. The position of the red-giant branch stars is compared with the loci of the RGB in six well-studied globular clusters and in the dwarf elliptical galaxy NGC 185;... | |||||||||
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