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Last name: BRAGAGLIA
First name: A.
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
We present the LTE abundance analysis of high resolution spectra for red giant stars in the peculiar bulge globular cluster NGC 6388. Spectra of seven members were taken using the UVES spectrograph at the ESO VLT2 and the multiobject FLAMES facility. We exclude any intrinsic metallicity spread in this cluster: on average, [Fe/H]=-0.44±0.01±0.03...
Astronomy and Astrophysics, 505, pp. 117-138 (2009)
International audience
We take advantage of the Gaia-ESO Survey iDR4 bulge data to search for abundance anomalies that could shed light on the composite nature of the Milky Way bulge. The α-element (Mg, Si, and whenever available, Ca) abundances, and their trends with Fe abundances have been analysed for a total of 776 bulge stars. In addition, the aluminum...
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...
Context. There have been conflicting results with respect to the extent that radial migration has played in the evolution of the Galaxy. Additionally, observations of the solar neighborhood have shown evidence of a merger in the past history of the Milky Way that drives enhanced radial migration. Aims. We attempt to determine the relative...
International audience
Aims. We study how diffuse interstellar bands (DIBs) measured toward distance-distributed target stars can be used to locate dense interstellar (IS) clouds in the Galaxy and probe a line-of-sight (LOS) kinematical structure, a potentially useful tool when gaseous absorption lines are saturated or not available in the spectral range. Cool target...
International audience
We report on VLT/GIRAFFE spectra of stars in two recently discovered ultra-faint satellites, Reticulum 2 and Horologium 1, obtained as part of the Gaia-ESO Survey. We identify 18 members in Reticulum 2 and five in Horologium 1. We find Reticulum 2 to have a velocity dispersion of {3.22}-0.49+1.64 {km} {{{s}}}-1, implying a mass-to-light ratio...
International audience
Context. The second Gaia data release (DR2) contains very precise astrometric and photometric properties for more than one billion sources, astrophysical parameters for dozens of millions, radial velocities for millions, variability information for half a million stars from selected variability classes, and orbits for thousands of solar system...
International audience
International audience