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astro-ph2003
Effects of Stellar-Mass and the ISM on the Evolving Morphologies of Planetary Nebulae
E. Villaver
A significant step forward in the understanding of Planetary Nebula (PN) formation can be achieved by exploring the connection of PN with stellar evolution. In particular, the init…
astro-ph1999
The formation of asymmetries in Multiple Shell Planetary Nebulae due to interaction with the ISM
E. Villaver, A. Manchado, G. Garcia-Segura
Multiple shell planetary nebulae (MSPNe) are most likely a consequence of the modulation of the mass-loss rate during the thermal pulses on the AGB. By using numerical simulations…
astro-ph1999
Low-ionization structures in planetary nebulae
D. R. Goncalves, R. M. L. Corradi, E. Villaver +2
We present new results of a program aimed at studying the physical properties, origin and evolution of those phenomena which go under the somewhat generic definition of "low-ioniza…