Chemical Compositions of Red Giant Stars in Old Large Magellanic Cloud Globular Clusters

2006 ◽  
Vol 640 (2) ◽  
pp. 801-822 ◽  
Author(s):  
Jennifer A. Johnson ◽  
Inese I. Ivans ◽  
Peter B. Stetson
Keyword(s):  
Globular Clusters ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Chemical Compositions ◽  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant

scholarly journals THE CHEMICAL COMPOSITION OF RED GIANT STARS IN FOUR INTERMEDIATE-AGE CLUSTERS OF THE LARGE MAGELLANIC CLOUD

2008 ◽  
Vol 136 (1) ◽  
pp. 375-388 ◽  
Author(s):  
Alessio Mucciarelli ◽  
Eugenio Carretta ◽  
Livia Origlia ◽  
Francesco R. Ferraro
Keyword(s):  
Chemical Composition ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant

scholarly journals Red Giant Stars in the Large Magellanic Cloud Clusters

2006 ◽  
Vol 646 (2) ◽  
pp. 939-950 ◽  
Author(s):  
Alessio Mucciarelli ◽  
Livia Origlia ◽  
Francesco R. Ferraro ◽  
Claudia Maraston ◽  
Vincenzo Testa
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Giant Stars ◽  
Cloud Clusters ◽  
Red Giant Stars ◽  
Red Giant

scholarly journals Chemical Compositions of Red Giant Stars from Habitable Zone Planet Finder Spectroscopy

2021 ◽  
Vol 161 (3) ◽  
pp. 128
Author(s):  
Christopher Sneden ◽  
Melike Afşar ◽  
Zeynep Bozkurt ◽  
Gamze Böcek Topcu ◽  
Sergen Özdemir ◽  
...  
Keyword(s):  
Chemical Compositions ◽  
Habitable Zone ◽  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant

scholarly journals Chromosome maps of young LMC clusters: an additional case of coeval multiple populations

2020 ◽  
Vol 493 (4) ◽  
pp. 6060-6070 ◽  
Author(s):  
S Saracino ◽  
S Martocchia ◽  
N Bastian ◽  
V Kozhurina-Platais ◽  
W Chantereau ◽  
...  
Keyword(s):  
Globular Clusters ◽  
Hubble Space Telescope ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Host Galaxy ◽  
Clear Correlation ◽  
Age Difference ◽  
Multiple Star ◽  
Multiple Populations ◽  
Red Giant

ABSTRACT Recent studies have revealed that the multiple populations (MPs) phenomenon does not occur only in ancient and massive Galactic globular clusters (GCs), but it is also observed in external galaxies, where GCs sample a wide age range with respect to the Milky Way. However, for a long time, it was unclear whether we were looking at the same phenomenon in different environments or not. The first evidence that the MPs phenomenon is the same regardless of cluster age and host galaxy came out recently, when an intermediate-age cluster from the Small Magellanic Cloud, Lindsay 1, and a Galactic GC have been directly compared. By complementing those data with new images from the Hubble Space Telescope (HST), we extend the comparison to two clusters of different ages: NGC 2121 (∼2.5 Gyr) and NGC 1783 (∼1.5 Gyr), from the Large Magellanic Cloud. We find a clear correlation between the RGB (red giant branch) width in the pseudo-colour CF275W, F343N, F438W and the age of the cluster itself, with the older cluster having larger σ(CF275W, F343N, F438W)RGB and vice versa. Unfortunately, the σ values cannot be directly linked to the N-abundance variations within the clusters before properly taking account the effect of the first dredge-up. Such HST data also allow us to explore whether multiple star formation episodes occurred within NGC 2121. The two populations are indistinguishable, with an age difference of only 6 ± 12 Myr and an initial helium spread of 0.02 or lower. This confirms our previous results, putting serious constraints on any model proposed to explain the origin of the chemical anomalies in GCs.

scholarly journals Red Giant Stars in Magellanic Cloud Clusters: Constraining Population Synthesis Models

1999 ◽  
Vol 190 ◽  
pp. 374-376
Author(s):  
Léo Girardi
Keyword(s):  
Magellanic Cloud ◽  
Population Synthesis ◽  
Giant Stars ◽  
Cloud Clusters ◽  
Red Giant Stars ◽  
Red Giant

We have developed a population synthesis code, aimed mainly at the interpretation of CMDs. Magellanic Cloud clusters have been largely used for the test/calibration of the underlying stellar tracks.

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