GRATTON , R.g.

We present abundance measurements, based on high-resolution optical spectroscopic data obtained with the Ultraviolet and Visual Echelle Spectrograph mounted on Kueyen (Very Large Telescope UT2), for ten stars in the extended blue horizontal branch of the Galactic globular cluster NGC 1904 (M79). In agreement with previous findings for other...

Astrophysical Journal, 671, pp. L125-L128, http://dx.doi.org./10.1086/525021

Astronomy and Astrophysics, 450, pp. 523-533, http://dx.doi.org./10.1051/0004-6361:20054369

Astronomy and Astrophysics, 440, pp. 901-908, http://dx.doi.org./10.1051/0004-6361:3019

Astronomy and Astrophysics, 442, pp. 947-947, http://dx.doi.org./10.1051/0004-6361:3019e

Astronomy and Astrophysics, 442, pp. 947-947, http://dx.doi.org./10.1051/0004-6361:3019e

Astronomy and Astrophysics, 464, pp. 967-981, http://dx.doi.org./10.1051/0004-6361:20066065

Astronomy and Astrophysics, 464, pp. 967-981, http://dx.doi.org./10.1051/0004-6361:20066065

Astrophysical Journal, 663, pp. 296-314, http://dx.doi.org./10.1086/517905

Astronomy and Astrophysics, 505, pp. 117-138 (2009)

International audience

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...