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4 papers
Metal Rich Stars in omega Centauri
E. Pancino
I present some preliminary results from a high-resolution spectroscopic observing campaign conducted with UVES at the ESO VLT, devoted to the study of the newly discovered, metal-r…
The Bologna Key Project on Omega Cen
F. R. Ferraro, E. Pancino, M. Bellazzini
In this contribution we schematically summarize a number of ongoing, coordinated spectro-photometric projects devoted to the study of the stellar population properties in Omega Cen…
Wide Field Imaging of the Sextans Dwarf Spheroidal Galaxy
E. Pancino, M. Bellazzini, F. R. Ferraro
We present wide field multiband photometry of the very low surface brightness dwarf Spheroidal galaxy (dSph) Sextans. We have found convincing evidence for the presence of multiple…
A new calibration of the RGB Tip as a Standard Candle
Michele Bellazzini, Francesco R. Ferraro, Elena Pancino
We have obtained an accurate estimate of the absolute I magnitude of the Tip of the Red Giant Branch (M_I(TRGB)) for the globular cluster Omega Cen, based {\em (a)} on the largest…