218 citations · 687 across the 18 of their papers we have counts for
9 papers · 2 filters
High resolution spectra of bright central stars of bipolar planetary nebulae, and the question of magnetic shaping
T. -H. Lee, L. Stanghellini, L. Ferrario +1
We present ESO NTT high resolution echelle spectroscopy of the central stars (CSs) of eight southern bipolar planetary nebulae (PNe) selected for their asymmetry. Our aim was to de…
Planetary nebulae as probes of the chemical impact of AGB stars
Letizia Stanghellini
Planetary nebulae (PN) represent the evolutionary fate of the asymptotic giant branch (AGB) stellar envelopes, thus are ideally suited to study the chemical impact of AGB stars. St…
The Mass Distribution of the Central Stars of Planetary Nebulae in the Large Magellanic Cloud
Eva Villaver, Letizia Stanghellini, Richard A. Shaw
We present the properties of the central stars from a sample of 54 Planetary Nebulae (PNe) observed in the Large Magellanic Cloud (LMC) with the Hubble Space Telescope Imaging Spec…
Asymptotic giant branch evolution and its impact on the chemical evolution of the Milky Way and the Magellanic Clouds
Letizia Stanghellini
The asymptotic giant branch (AGB) phase of stellar evolution is common to most stars of low and intermediate mass. Most of the carbon and nitrogen in the Universe is produced by AG…
Hubble Space Telescope Images of Magellanic Cloud Planetary Nebulae
Richard A. Shaw, Letizia Stanghellini, Eva Villaver +1
We present images and slitless spectra which were obtained in HST surveys of Planetary Nebulae (PNe) in both the Large and Small Magellanic Clouds, using the Space Telescope Imagin…
Planetary Nebula Abundances and Morphology: Probing the Chemical Evolution of the Milky Way
L. Stanghellini, A. M. Guerrero, K. Cunha +2
This paper presents a homogeneous study of abundances in a sample of 79 northern galactic planetary nebulae whose morphological classes have been uniformly determined. Ionic abunda…