53 citations · 67 across the 4 of their papers we have counts for
4 papers
H long term monitoring of the Be star Cep Aa
G. Catanzaro
Recent papers published in the last years contributed to resolve the enigma on the hypothetical Be nature of the hot pulsating star Cep. This star shows variable emission in th…
A spectroscopic search for non-radial pulsations in the delta Scuti star gamma Bootis
R. Ventura, G. Catanzaro, J. Christensen-Dalsgaard +2
High-resolution spectroscopic observations of the rapidly rotating delta Scuti star gamma Bootis have been carried out on 2005, over 6 consecutive nights, in order to search for li…
Spectroscopy of the hot pulsating star Beta Cephei. Velocities and EWs from C,N,O and Si lines
G. Catanzaro, F. Leone, I. Busa' +1
Frequencies in oscillating Cephei stars are usually inferred by means of radial velocities measured from the SiIII triplet 4552-4574 A. These lines, relatively insensitive to t…
Na-O Anticorrelation and HB. IV. Detection of He-rich and He-poor stellar populations in the globular cluster NGC 6218
E. Carretta, A. Bragaglia, R. G. Gratton +9
We used the multifiber spectrograph FLAMES on the ESO Very Large Telescope UT2 to derive atmospheric parameters, metallicities and abundances of O and Na for 79 red giant stars in…