What can be deduced from open cluster metallicity measurements?
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Date
2007
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Oxford University Press
Abstract
The dependence of [Fe/H] on galactocentric distance, distance from the galactic mid-plane
and age is studied. Both ordinary least-squares and non-parametric regression in the form of a
‘generalized additive model’ are used. The radial metallicity slope is found to be shallower than
previously claimed in the literature, and there is a significant abundance gradient perpendicular
to the galactic plane. There may be a tendency for metallicity to increase with cluster age.
Description
Keywords
Methods: statistical, Galaxy: abundances, Open clusters and associations, General
Citation
Koen, C. & Lombard, F. (2007). What can be deduced from open cluster metallicity measurements? Monthly Notices of the Royal Astronomical Society, 382(2): 693–698