We present high resolution long-slit spectra of HH 444 and numerical simulations for this Herbig-Haro object. From the comparison between observations and...
Observations of Li-rich giant stars in the Galaxy and in the Magellanic Clouds
The Lithium content in stars is very sensitive to the internal stellar conditions. Indeed, Lithium is readily destroyed in the interiors of low-mass main...
Preliminary results are presented of spectroscopic analysis of ten young stars in OB associations using high resolution spectra and NLTE calculations. From the...
Observations of Massive Supersonic Outflows in Highly Luminous H II Regions
Using H alpha emission line profiles we detect outflowing ionized gas at velocities of order 50 km/s from representative luminous H II regions in two sample...
Observations of Optical Afterglows of Gamma-Ray Bursts from Loiano
We report on our program for multiband photometry observations of Optical Transients of Gamma-Ray Bursts at the 152 cm telescope in Loiano. 40 Km south of...
Observations of outflow and its consequences in circum-nuclear zones of spirals
The radial hydrogen (H2 + HI) distribution in spirals takes two forms: with a density peak at the nucleus or with a circular 'hole' around it. Spectral and...