Release 11.12 ("Hergest Ridge")


Gclusters :: Bibliographic item "gc498"

Article ID: gc498
AuthorBragaglia, A. et al.
TitleNGC 6139: a normal massive globular cluster, or a first-generation dominated cluster? Clues from the light elements
JournalAstronomy & Astrophysics, Volume 583, id.A69, 9 pp.
Year of publication2015 (on gclusters from 2015-11-25 10:09:14 )
AbstractInformation on globular clusters (GC) formation mechanisms can be gathered by studying the chemical signature of the multiple populations that compose these stellar systems. In particular, we investigate the anti-correlations among O, Na, Al, and Mg to explore the influence of cluster mass and environment on GCs in the Milky Way and in extragalactic systems. We present here the results obtained on NGC 6139, which, on the basis of its horizontal branch morphology, has been proposed to be dominated by first-generation stars (...) NGC 6139 behaves as expected from its mass and contains a large portion (about two thirds) of second-generation stars.
TagsNGC 6139

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