Nitrogen abundances and multiple stellar populations in the globular clusters of the Fornax dSph

@article{Larsen2014NitrogenAA,
  title={Nitrogen abundances and multiple stellar populations in the globular clusters of the Fornax dSph},
  author={S{\o}ren S. Larsen and Jean P. Brodie and Frank Grundahl and J. Strader Department of AstrophysicsIMAPP and Radboud University Nijmegen and The Netherlands. and UCOLick Observatory and UC Santa Cruz and Usa and Stellar Astrophysics Centre and Aarhus University and Denmark. and Department of Engineering Physics and Astronomy and Michigan State University},
  journal={arXiv: Astrophysics of Galaxies},
  year={2014}
}
We use measurements of nitrogen abundances in red giants to search for multiple stellar populations in the four most metal-poor globular clusters (GCs) in the Fornax dwarf spheroidal galaxy (Fornax 1, 2, 3, and 5). New imaging in the F343N filter, obtained with the Wide Field Camera 3 on the Hubble Space Telescope, is combined with archival F555W and F814W observations to determine the strength of the NH band near 3370 AA. After accounting for observational errors, the spread in the F343N-F555W… Expand
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