Release 11.12 ("Hergest Ridge")


Gclusters :: Bibliographic item "gc556"

Article ID: gc556
AuthorKacharov, N.; Koch, A.; McWilliam, A.
TitleA comprehensive chemical abundance study of the outer halo globular cluster M 75
JournalAstronomy & Astrophysics, Volume 554, 15 pp
Year of publication2013 (on gclusters from 2018-12-10 11:16:17 )
AbstractM 75 is a relatively young globular cluster (GC) found at 15 kpc from the Galactic centre at the transition region between the inner and outer Milky Way halos. Our aims are to perform a comprehensive abundance study of a variety of chemical elements in this GC such as to investigate its chemical enrichment history in terms of early star formation, and to search for any multiple populations. We have obtained high resolution spectroscopy with the MIKE instrument at the Magellan telescope for 16 red giant stars. Their membership within the GC is confirmed from radial velocity measurements. Our chemical abundance analysis is performed via equivalent width measurements and spectral synthesis, assuming local thermodynamic equilibrium. Results: We present the first comprehensive abundance study of M 75 to date...
Also available at:https://arxiv.org/abs/1304.4247
TagsNGC 6864

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