791 citations · 1.5k across the 15 of their papers we have counts for
15 papers
AGB subpopulations in the nearby globular cluster NGC 6397
B. T. MacLean, S. W. Campbell, G. M. De Silva +5
It has been well established that Galactic Globular clusters (GCs) harbour more than one stellar population, distinguishable by the anti-correlations of light element abundances (C…
An extensive radial velocity survey toward NGC 6253
M. Montalto, C. H. F. Melo, N. C. Santos +6
The old and metal rich open cluster NGC 6253 was observed with the FLAMES multi-object spectrograph during an extensive radial velocity campaign monitoring 317 stars with a median…
A hot horizontal branch star with a close K-type main-sequence companion
C. Moni Bidin, Y. Momany, M. Montalto +4
Dynamical interactions in binary systems are thought to play a major role in the formation of extreme horizontal branch stars (EHBs) in the Galactic field. However, it is still unc…
The Na-O anticorrelation in horizontal branch stars. IV. M22
R. G. Gratton, S. Lucatello, A. Sollima +6
We obtained high-resolution spectra for 94 candidate stars belonging to the HB of M22 with FLAMES. The HB stars we observed span a restricted temperature range (7,800<Teff<11,000 K…
The Na-O anticorrelation in horizontal branch stars. II. NGC1851
R. G. Gratton, S. Lucatello, E. Carretta +6
We studied the Na-O anti-correlation from moderately high resolution spectra for 35 stars on the blue HB (BHB), one RR Lyrae, and 55 stars are on the red HB (RHB) of NGC1851. We al…
The Na-O anticorrelation in horizontal branch stars. I. NGC 2808
R. G. Gratton, S. Lucatello, E. Carretta +3
Globular clusters have been recognized to host multiple stellar populations. A spectacular example of this is the massive cluster NGC2808, where multiple populations have been foun…