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Multi-Conjugate Adaptive Optics VLT imaging of the distant old open cluster FSR1415
Y. Momany, S. Ortolani, C. Bonatto +2
We employ the recently installed near infrared Multi-Conjugate Adaptive optics demonstrator (MAD) to determine basic properties of a newly identified, old and distant, Galactic ope…
Spectroscopic and Photometric evidence of two stellar populations in the Galactic Globular Cluster NGC6121 (M4)
A. F. Marino, S. Villanova, G. Piotto +4
AIMS. We present abundance analysis based on high resolution spectra of 105 isolated red giant branch (RGB) stars in the Galactic Globular Cluster NGC 6121 (M4). Our aim is to stud…
The evolved stars of Leo II dSph galaxy from near-infrared UKIRT/WFCAM observations
M. Gullieuszik, E. V. Held, L. Rizzi +3
We present a study of the evolved stellar populations in the dwarf spheroidal galaxy LeoII, based on JHKs observations obtained with the near-infrared array WFCAM at the UKIRT tele…
Ground-based CCD astrometry with wide field imagers. II. A star catalogue for M67: [email protected] MPG/ESO astrometry, FLAMES@VLT radial velocities
R. K. S. Yadav, L. R. Bedin, G. Piotto +7
The solar-age open cluster M67 (C0847+120, NGC2682) is a touchstone in studies of the old Galactic disk. Despite its outstanding role, the census of cluster membership for M67 at f…
The embedded cluster DBSB48 in the nebula Hoffleit18: comparison with Trumpler14
S. Ortolani, C. Bonatto, E. Bica +2
We derive fundamental parameters of the embedded cluster DBSB48 in the southern nebula Hoffleit18 and the very young open cluster Trumpler14, by means of deep JHKs infrared photome…
Spectroscopy of horizontal branch stars in NGC6752 - Anomalous results on atmospheric parameters and masses
C. Moni Bidin, S. Moehler, G. Piotto +2
We used the ESO VLT-FORS2 facility to collect low-resolution spectra of 51 targets distributed along the Horizontal Branch. We determined atmospheric parameters by comparison with…