Context. Globular clusters are known to host multiple stellar populations, which are a signature of their formation process. The globular cluster E3 is one of the few low-mass globulars that is thought not to host multiple populations. Aims. We investigate red giant branch stars in E3 with the ai...
Monaco, L.
,
Villanova, S.
,
Carraro, G.
,
Mucciarelli, A.
,
Moni Bidin, C.
,
[Chemical abundance analysis of red giant branch stars in the globular cluster E3]
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Chemical abundance analysis of red giant branch stars in the globular cluster E3
Context. Low-mass dwarf spheroidal galaxies are key objects for our understanding of the chemical evolution of the pristine Universe and the Local Group of galaxies. Abundance ratios in stars of these objects can be used to better understand their star formation and chemical evolution. Aims. We r...
François, P.
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Monaco, L.
,
Bonifacio, P.
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Moni Bidin, C.
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Geisler, D.
,
[Abundance ratios of red giants in low-mass ultra-faint dwarf spheroidal galaxies]
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Abundance ratios of red giants in low-mass ultra-faint dwarf spheroidal galaxies
We present the abundance analysis for a sample of 18 red giant branch stars in the metal-poor globular cluster NGC 4147 based on medium- and high-resolution spectra. This is the first extensive spectroscopic study of this cluster. We derive abundances of C, N, O, Na, Mg, Al, Si, Ca, Ti, Cr, Fe, N...
Villanova, S.
,
Monaco, L.
,
Moni Bidin, C.
,
Assmann, P.
,
[A spectroscopic study of the globular Cluster NGC 4147]
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A spectroscopic study of the globular Cluster NGC 4147