Abstract
Recent papers, based on Hubble Space Telescope (HST) multi-wavelength photometry, have dramatically changed the traditional view of the color-magnitude diagram (CMD) of globular clusters (GCs). Appropriate combination of ultraviolet, visual, and near infrared (NIR) photometry have revealed multiple stellar populations along the entire CMD, from the bottom of the main sequence (MS) up to the the sub-giant (SGB), the red-giant branch (RGB) and even along the horizontal-branch (HB). In this paper I will use NGC2808 as a prototype to illustrate the typical features of the multiple populations in GCs and to get information on their chemical composition.
| Original language | English |
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| Pages (from-to) | 303-306 |
| Number of pages | 4 |
| Journal | Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society |
| Volume | 87 |
| Issue number | 2 |
| Publication status | Published - 2016 |
| Event | 2015 AGB Stars: A Key Ingredient in the Understanding and Interpretation of Stellar Populations, European Week of Astronomy and Space Science - La Laguna, Tenerife, Spain Duration: 22 Jun 2015 → 26 Jun 2015 |