scholarly journals A spectroscopic study of chemical abundances in the globular cluster Omega Centauri

1988 ◽  
Vol 233 (2) ◽  
pp. 367-393 ◽  
Author(s):  
S. P. Caldwell ◽  
R. J. Dickens
Keyword(s):  
Spectroscopic Study ◽  
Globular Cluster ◽  
Chemical Abundances

scholarly journals Chemical abundances in tidally disrupted globular clusters

2009 ◽  
Vol 5 (S266) ◽  
pp. 157-160
Author(s):  
D. Yong ◽  
J. Meléndez ◽  
K. Cunha ◽  
A. I. Karakas ◽  
J. E. Norris ◽  
...  
Keyword(s):  
Globular Cluster ◽  
Preliminary Analysis ◽  
Globular Clusters ◽  
Building Blocks ◽  
Light Elements ◽  
Chemical Abundances ◽  
Chemical Enrichment ◽  
Abundance Variation

AbstractWe present abundance measurements in the tidally disrupted globular cluster NGC 6712. In this cluster, there are large star-to-star variations of the light elements C, N, O, F and Na. While such abundance variations are seen in every well-studied globular cluster, they are not found in field stars and indicate that clusters like NGC 6712 cannot provide many field stars and/or field stars do not form in environments with chemical-enrichment histories like those of NGC 6712. Preliminary analysis of NGC 5466, another tidally disrupted cluster, suggests little (if any) abundance variation for O and Na and the abundance ratios [X/Fe] are comparable to field stars at the same metallicity. Therefore, globular clusters like NGC 5466 may have been Galactic building blocks.

scholarly journals Are Galactic globular cluster AGB stars rich or poor in Sodium? Sodium abundance of AGB and RGB stars in NGC 2808

2015 ◽  
Vol 12 (S316) ◽  
pp. 361-362
Author(s):  
Yue Wang ◽  
Francesca Primas ◽  
Corinne Charbonnel ◽  
Mathieu Van der Swaelmen ◽  
William Chantereau ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
Globular Cluster ◽  
Main Sequence ◽  
Significant Fraction ◽  
Agb Stars ◽  
2Nd Generation ◽  
Red Giant ◽  
Sodium Abundance

AbstractA spectroscopic study comparing the [Na/Fe] distributions of RGB and AGB stars in the Galactic globular cluster (GC) NGC 6752 found that there was no Na-rich, 2nd-generation star along the early-AGB of this cluster. This came as a surprise since in this GC, as well as other Galactic GCs studied so far, 1st- and 2nd-generation stars have usually been found from the main sequence turnoff up to the red giant branch. To investigate whether the failure of a significant fraction of stars to ascend the AGB also happens to other GCs, we studied a sample of AGB and RGB stars in NGC 2808 observed at the ESO/VLT with FLAMES. Contrary to NGC 6752, we find that the AGB and RGB stars we studied in NGC 2808 have comparable [Na/Fe] dispersions.

scholarly journals DETAILED CHEMICAL ABUNDANCES OF FOUR STARS IN THE UNUSUAL GLOBULAR CLUSTER PALOMAR 1

2011 ◽  
Vol 740 (2) ◽  
pp. 106 ◽  
Author(s):  
Charli M. Sakari ◽  
Kim A. Venn ◽  
Mike Irwin ◽  
Wako Aoki ◽  
Nobuo Arimoto ◽  
...  
Keyword(s):  
Globular Cluster ◽  
Chemical Abundances ◽  
Detailed Chemical

scholarly journals APOGEE chemical abundances of globular cluster giants in the inner Galaxy

2016 ◽  
Vol 466 (1) ◽  
pp. 1010-1018 ◽  
Author(s):  
Ricardo P. Schiavon ◽  
Jennifer A. Johnson ◽  
Peter M. Frinchaboy ◽  
Gail Zasowski ◽  
Szabolcs Mészáros ◽  
...  
Keyword(s):  
Globular Cluster ◽  
Chemical Abundances

scholarly journals The Assembly History of M87 through Radial Variations in Chemical Abundances of Its Field Star and Globular Cluster Populations

2020 ◽  
Vol 900 (2) ◽  
pp. 95 ◽  
Author(s):  
Alexa Villaume ◽  
Daniel Foreman-Mackey ◽  
Aaron J. Romanowsky ◽  
Jean Brodie ◽  
Jay Strader
Keyword(s):  
Globular Cluster ◽  
Chemical Abundances ◽  
Field Star ◽  
History Of

scholarly journals Chemical abundances in the old LMC globular cluster Hodge 11

2012 ◽  
Vol 548 ◽  
pp. A82 ◽  
Author(s):  
R. Mateluna ◽  
D. Geisler ◽  
S. Villanova ◽  
G. Carraro ◽  
A. Grocholski ◽  
...  
Keyword(s):  
Globular Cluster ◽  
Chemical Abundances

scholarly journals Spectroscopic study of the elusive globular cluster ESO452-SC11 and its surroundings

2017 ◽  
Vol 604 ◽  
pp. A41 ◽  
Author(s):  
Andreas Koch ◽  
Camilla Juul Hansen ◽  
Andrea Kunder
Keyword(s):  
Spectroscopic Study ◽  
Globular Cluster

scholarly journals Chemical Abundances along the 1G Sequence of the Chromosome Maps: The Globular Cluster NGC 3201

2019 ◽  
Vol 887 (1) ◽  
pp. 91 ◽  
Author(s):  
A. F. Marino ◽  
A. P. Milone ◽  
A. Sills ◽  
D. Yong ◽  
A. Renzini ◽  
...  
Keyword(s):  
Globular Cluster ◽  
Chemical Abundances ◽  
Chromosome Maps

Chemical abundances in globular cluster turn-off stars from Keck/HIRES observations

2000 ◽  
Author(s):  
Ann M. Boesgaard ◽  
Alex Stephens ◽  
Jeremy R. King ◽  
Constantine P. Deliyannis
Keyword(s):  
Globular Cluster ◽  
Chemical Abundances
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