Nucleosynthesis in massive AGB stars with delayed superwinds: implications for the abundance anomalies in globular clusters .
We present nucleosynthesis predictions for massive (5-7 M⊙) asymptotic giant branch (AGB) stars of solar metallicity where we delay the onset of the superwind...
The detection of 1.809 MeV gamma-ray line emission from the Vela region by the COMPTEL telescope presents a direct prove of recent nucleosynthesis activity in...
The Cometary Knots in the Helix Nebula have shown themselves to be formed of a head which is a photoionized surface, optically thick to Lyman continuum...
Numerical determination of the modulation transfer function from observations of granulation outside the disk centre.
A spectral ratio, similar to that of von der Lühe (1984), is proposed to derive information on the degradation of the mean granular power spectrum at a position...