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pro vyhledávání: '"Willemsen, Philip G."'
Our work focuses on the understanding of the origin of CNO-anomalies, which have been detected in several Galactic globular clusters (GCs). This study is based on a homogeneous data set of hundreds of medium resolution spectra of stars in eight GCs.
Externí odkaz:
http://arxiv.org/abs/0805.1067
Publikováno v:
Astron.Astrophys. 458 (2006) 777-788
Medium resolution spectra of more than 400 subgiant and turn-off region stars in Omega Centauri were analysed. The observations were performed at the VLT/Paranal with FORS2/MXU. In order to determine the metallicities of the sample stars, we defined
Externí odkaz:
http://arxiv.org/abs/astro-ph/0611286