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Blue Straggler Stars in the Unusual Globular Cluster NGC 6388
E. Dalessandro, B. Lanzoni, F. R. Ferraro +4
We have used multi-band high resolution HST WFPC2 and ACS observations combined with wide field ground-based observations to study the blue straggler star (BSS) population in the g…
The surface density profile of NGC 6388: a good candidate for harboring an intermediate-mass black hole
B. Lanzoni, E. Dalessandro, F. R. Ferraro +4
We have used a combination of high resolution (HST ACS-HRC, ACS-WFC, and WFPC2) and wide-field (ESO-WFI) observations of the galactic globular cluster NGC 6388 to derive its center…
The First Detailed Abundances for M giants in the inner Bulge from Infrared Spectroscopy
R. Michael Rich, Livia Origlia, Elena Valenti
We report the first abundance analysis of 17 M giant stars in the inner Galactic bulge at , based on infrared spectroscopy using NIRS…
A Panchromatic Study of the Globular Cluster NGC 1904. I: The Blue Straggler Population
B. Lanzoni, N. Sanna, F. R. Ferraro +7
By combining high-resolution (HST-WFPC2) and wide-field ground based (2.2m ESO-WFI) and space (GALEX) observations, we have collected a multi-wavelength photometric data base (rang…
Na-O Anticorrelation and Horizontal Branches. V. The Na-O anticorrelation in NGC 6441 from Giraffe spectra
R. G. Gratton, S. Lucatello, A. Bragaglia +16
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 globula…