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

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 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

The MAGIC project – II. Discovery of two new Galactic lithium-rich Cepheids

2019 ◽  
Vol 488 (3) ◽  
pp. 3211-3221
Author(s):  
V Kovtyukh ◽  
B Lemasle ◽  
A Kniazev ◽  
L Berdnikov ◽  
G Bono ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Mixed Mode ◽  
Milky Way ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Large Telescope ◽  
Instability Strip ◽  
Red Giant ◽  
First Time

Abstract We report the discovery of two new lithium-rich Cepheids in the Milky Way (A(Li) ≈ 2.9 dex) among the targets of the MAGIC spectroscopic survey with the Southern African Large Telescope spectrographs. The 6707 Å Li feature is usually not detectable in the atmosphere of Cepheids. Only three Cepheids (two in the Milky Way and one in the Large Magellanic Cloud) had been reported so far with high lithium abundances. We examine the possibility that the Li-rich Cepheids are evolving towards the red giant branch, crossing the instability strip for the first time, as well as other possible scenarios. The two stars are mixed-mode Cepheids pulsating simultaneously in the first and in the second overtone modes. We briefly discuss the possible connection between their unusual chemical composition and their pulsational properties.

scholarly journals Chemical composition of stellar populations in ω Centauri

2009 ◽  
Vol 5 (S268) ◽  
pp. 183-184 ◽  
Author(s):  
A. F. Marino ◽  
G. Piotto ◽  
R. Gratton ◽  
A. P. Milone ◽  
M. Zoccali ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Milky Way ◽  
Stellar Populations ◽  
Preliminary Results ◽  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant ◽  
Metallicity Distribution

AbstractWe derive abundances of Fe, Na, O, α and s-elements from GIRAFFE@VLT spectra for more than 200 red giant stars in the Milky Way satellite ω Centauri. Our preliminary results are that: (i) we confirm that ω Centauri exhibits large star-to-star metallicity variation (~1.4 dex); (ii) the metallicity distribution reveals the presence of at least five stellar populations with different [Fe/H]; (iii) a distinct Na-O anticorrelation is clearly observed for the metal-poor and metal-intermediate stellar populations while apparently the anticorrelation disappears for the most metal rich populations. Interestingly the Na level grows with iron.

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.

Isolating Red Giant Stars in M31's Elusive Outer Spheroid

1998 ◽  
Vol 116 (2) ◽  
pp. 707-722 ◽  
Author(s):  
David B. Reitzel ◽  
Puragra Guhathakurta ◽  
Andrew Gould
Keyword(s):  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant

Ellipsoidal Variability and Long Secondary Periods in MACHO Red Giant Stars

2006 ◽  
Vol 650 (1) ◽  
pp. L55-L58 ◽  
Author(s):  
A. Derekas ◽  
L. L. Kiss ◽  
T. R. Bedding ◽  
H. Kjeldsen ◽  
P. Lah ◽  
...  
Keyword(s):  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant

Dust clouds around red giant stars: Evidence of sublimating comet disks?

Icarus ◽  
1989 ◽  
Vol 81 (1) ◽  
pp. 24-30 ◽  
Author(s):  
John J. Matese ◽  
Daniel P. Whitmire ◽  
Ray T. Reynolds
Keyword(s):  
Giant Stars ◽  
Dust Clouds ◽  
Red Giant Stars ◽  
Red Giant

scholarly journals They Might Be Giants: An Efficient Color-based Selection of Red Giant Stars

2018 ◽  
Vol 861 (2) ◽  
pp. L16 ◽  
Author(s):  
Charlie Conroy ◽  
Ana Bonaca ◽  
Rohan P. Naidu ◽  
Daniel J. Eisenstein ◽  
Benjamin D. Johnson ◽  
...  
Keyword(s):  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant ◽  
Selection Of
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