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Hide and seek between Andromeda's halo, disk, and giant stream
Gisella Clementini, Rodrigo Contreras Ramos, Luciana Federici +17
Photometry in B, V (down to V ~ 26 mag) is presented for two 23' x 23' fields of the Andromeda galaxy (M31) that were observed with the blue channel camera of the Large Binocular T…
New Variable Stars in CMa Globular Cluster Candidates
P. Amigo, M. Catelan, P. B. Stetson +3
We present the preliminary results of an image-subtraction analysis of the Galactic globular cluster M79 (NGC 1904), as well as a new investigation of the variable star population…
Measuring helium abundance difference in giants of NGC 2808
L. Pasquini, P. Mauas, H. U. Kaufl +1
Multiple populations have been detected in several globular clusters (GC) that do not display a spread in metallicity. Unusual features of their CMD can be interpreted in terms of…