The chemical signatures of the Large Magellanic Cloud globular clusters

Details The chemical signatures of the Large Magellanic Cloud globular clusters The chemical signatures of the Large Magellanic Cloud globular clusters

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009iaus..256..299m&link_type=abstract

The Magellanic System: Stars, Gas, and Galaxies, Proceedings of the International Astronomical Union, IAU Symposium, Volume 256,

Astronomy and Astrophysics

Astronomy

Techniques: Spectroscopic, Stars: Abundances, Galaxies: Evolution, Galaxies: Individual (Lmc), Magellanic Clouds, Galaxies: Star Clusters

Scientific paper

We present the first results of a long-term project based on the analysis of high-resolution optical spectra for a sample of Large Magellanic Cloud globular clusters. The final aim is to build a new, reliable metallicity scale for this cluster system and shed some light on the role played by the different chemical contributors (AGB, SN II and SN Ia), in order to understand the chemical enrichment history of the Large Magellanic Cloud. The analysis of 6 young and intermediate-age clusters and 11 field stars, observed with the UVES@FLAMES spectrograph, provides crucial information about the chemical composition of the dominant stellar population of the LMC. All these stars are metal-rich ([Fe/H]~ -0.4 dex), with solar-scaled [α/Fe] ratios, that point toward an enrichment from SN Ia. Moreover, we observed a general depletion for the [Al/Fe] ratio (indication of a chemical enrichment by metal-poor SN II) and a strong enhancement of the [Ba/Y] ratio (likely due to the enrichment by metal-poor AGB stars).

Affiliated with

Also associated with

No associations

Rating

The chemical signatures of the Large Magellanic Cloud globular clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The chemical signatures of the Large Magellanic Cloud globular clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The chemical signatures of the Large Magellanic Cloud globular clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-978282