142 citations · 844 across the 23 of their papers we have counts for
7 papers · 1 filter
The nature of medium-period variables on the extreme horizontal branch I. X-shooter study of variable stars in the globular cluster Cen
J. Krticka, I. Krtickova, C. Moni Bidin +6
A fraction of the extreme horizontal branch stars of globular clusters exhibit a periodic light variability that has been attributed to rotational modulation caused by surface spot…
Chemical analysis of NGC 6528: one of the most metal-rich bulge globular cluster
C. Muñoz, D. Geisler, S. Villanova +6
The Bulge Globular Clusters (GCs) are key tracers of this central ancient component of our Galaxy. It is essential to understand their formation and evolution to study that of the…
Chemical abundance analysis of red giant branch stars in the globular cluster E3
L. Monaco, S. Villanova, G. Carraro +2
Context. Globular clusters are known to host multiple stellar populations, which are a signature of their formation process. The globular cluster E3 is one of the few low-mass glob…
Ultra-deep GEMINI near-infrared observations of the bulge globular cluster NGC 6624
S. Saracino, E. Dalessandro, F. R. Ferraro +8
We used ultra-deep and images secured with the near-infrared GSAOI camera assisted by the multi-conjugate adaptive optics system GeMS at the GEMINI South Telescope in Chi…
A spectroscopic study of the Globular Cluster NGC 4147
Sandro Villanova, Lorenzo MOnaco, Cristian Moni Bidin +1
We present the abundance analysis for a sample of 18 red giant branch stars in the metal-poor globular cluster NGC 4147 based on medium and high resolution spectra. This is the fir…
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…