Aims:We present an analysis of FLAMES-Giraffe spectra for several bright giants in NGC 6441, to investigate the presence and extent of the Na-O anticorrelation in this anomalous globular cluster. Methods: The field of NGC 6441 is very crowded, with severe contamination by foreground (mainly bulge) field stars. Appropriate membership criteria were devised to identify a group of 25 likely cluster members among the about 130 stars observed. Combined with the UVES data obtained with the same observations (Gratton et al. 2006), high dispersion abundance analyses are now available for a total of 30 stars in NGC 6441, 29 of them having data for both O and Na. The spectra were analyzed by a standard line analysis procedure; care was taken to minimi...
Our FLAMES survey of Na-O anticorrelation in globular clusters (GCs) is extended to NGC 4833, a meta...
Context. Galactic globular clusters (GCs) are essential tools for understanding the earliest epoch o...
Globular clusters have been recognized to host multiple stellar populations. A spectacular example o...
Astronomy and Astrophysics, 464, pp. 953-965, http://dx.doi.org./10.1051/0004-6361:20066061Internati...
We present an analysis of FLAMES-Giraffe spectra for several bright giants in NGC 6441, to investiga...
We used FLAMES+GIRAFFE (Medusa mode) at the VLT to obtain moderately high resolution spectra for 30 ...
We used FLAMES+GIRAFFE (Medusa mode) at the VLT to obtain moderately high resolution spectra for 30 ...
We used the multifiber spectrograph FLAMES on the ESO Very Large Telescope UT2 to derive atmospheric...
We present abundances of Fe, Na, and O for 1409 red giant stars in 15 galactic globular clusters (GC...
The aim of the present work is to determine accurate metallicities for a group of red giant branch s...
We used FLAMES+GIRAFFE (Medusa mode) at the VLT to obtain moderately high resolution spectra for 30 ...
We present abundances of Fe, Na, and O for 1409 red giant stars in 15 galactic globular clusters (GC...
We used the multifiber spectrograph FLAMES on the ESO Very Large Telescope UT2 to derive atmospheric...
Our FLAMES survey of Na-O anticorrelation in globular clusters (GCs) is extended to NGC 4833, a meta...
Our FLAMES survey of Na-O anticorrelation in globular clusters (GCs) is extended to NGC 4833, a meta...
Our FLAMES survey of Na-O anticorrelation in globular clusters (GCs) is extended to NGC 4833, a meta...
Context. Galactic globular clusters (GCs) are essential tools for understanding the earliest epoch o...
Globular clusters have been recognized to host multiple stellar populations. A spectacular example o...
Astronomy and Astrophysics, 464, pp. 953-965, http://dx.doi.org./10.1051/0004-6361:20066061Internati...
We present an analysis of FLAMES-Giraffe spectra for several bright giants in NGC 6441, to investiga...
We used FLAMES+GIRAFFE (Medusa mode) at the VLT to obtain moderately high resolution spectra for 30 ...
We used FLAMES+GIRAFFE (Medusa mode) at the VLT to obtain moderately high resolution spectra for 30 ...
We used the multifiber spectrograph FLAMES on the ESO Very Large Telescope UT2 to derive atmospheric...
We present abundances of Fe, Na, and O for 1409 red giant stars in 15 galactic globular clusters (GC...
The aim of the present work is to determine accurate metallicities for a group of red giant branch s...
We used FLAMES+GIRAFFE (Medusa mode) at the VLT to obtain moderately high resolution spectra for 30 ...
We present abundances of Fe, Na, and O for 1409 red giant stars in 15 galactic globular clusters (GC...
We used the multifiber spectrograph FLAMES on the ESO Very Large Telescope UT2 to derive atmospheric...
Our FLAMES survey of Na-O anticorrelation in globular clusters (GCs) is extended to NGC 4833, a meta...
Our FLAMES survey of Na-O anticorrelation in globular clusters (GCs) is extended to NGC 4833, a meta...
Our FLAMES survey of Na-O anticorrelation in globular clusters (GCs) is extended to NGC 4833, a meta...
Context. Galactic globular clusters (GCs) are essential tools for understanding the earliest epoch o...
Globular clusters have been recognized to host multiple stellar populations. A spectacular example o...