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Journal ArticleOPEN ACCESS

A Glimpse into the Past: The Recent Evolution of Globular Clusters

  • Kalirai J
  • Strader J
  • Anderson J
  • et al.
The Astrophysical Journal (2008) 682(1) L37-L40
DOI: 10.1086/590660
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Abstract

We present the serendipitous discovery of 195 extragalactic globular clusters (GCs) in one of the deepest optical images ever obtained, a 126 orbit Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) imaging study of the nearby Galactic GC NGC 6397. The distant GCs are all found surrounding a bright elliptical galaxy in the field and are among the faintest objects detected in the image, with magnitudes 26

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APA

Kalirai, J. S., Strader, J., Anderson, J., & Richer, H. B. (2008). A Glimpse into the Past: The Recent Evolution of Globular Clusters. The Astrophysical Journal, 682(1), L37–L40. https://doi.org/10.1086/590660

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