English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

This paper presents abundances for 12 red giants of the old open clusterCollinder 261 based on spectra from VLT/UVES. Abundances were derived for Na,Mg, Si, Ca, Mn, Fe, Ni, Zr and Ba. We find the cluster has a solar-levelmetallicity of [Fe/H] = -0.03 dex. However some alpha elements were found to beenhanced. The star-to-star scatter was consistent with the expected measurementuncertainty for all elements. The observed rms scatter is as follows: Na =0.07, Mg = 0.05, Si = 0.06, Ca = 0.05, Mn = 0.03, Fe = 0.02, Ni = 0.04, Zr =0.12, and Ba = 0.03 dex. The intrinsic scatter was estimated to be less than0.05 dex. Such high levels of homogeneity indicate that chemical informationremains preserved in this old open cluster.  We use the chemical homogeneity we have now established in Cr 261, Hyades andthe HR1614 moving group to examine the uniqueness of the individual clusterabundance patterns, ie. chemical signatures. We demonstrate that the threestudied clusters have unique chemical signatures, and discuss how other suchsignatures may be searched for in the future. Our findings support the prospectof chemically tagging disk stars to common formation sites in order to unravelthe dissipative history of the Galactic disk.Comment: 26 pages, 15 figures, accepted by AJ. Uses emulateapj.cl

Chemical Homogeneity in Collinder 261 and Implications for Chemical Tagging