The Effect of the Transition Times in the Formation of Planetary Nebulae

Details The Effect of the Transition Times in the Formation of Planetary Nebulae The Effect of the Transition Times in the Formation of Planetary Nebulae

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001assl..265..147v&link_type=abstract

Post-AGB Objects as a Phase of Stellar Evolution, Proceedings of the Toruń Workshop held July 5-7, 2000. Edited by R. Szczerba a

Astronomy and Astrophysics

Astrophysics

Scientific paper

We have explored the effect of transition timescales in planetary nebulae (PNe) formation. We have performed hydrodynamical simulations of the evolution of the stellar winds predicted by theoretical stellar evolutionary models adopting two choices for the evolution during the transition time. The evolution of the star from the AGB to the PN stage has been followed for different main-sequence stellar masses (1, 1.5, 2, 2.5, 3.5 and 5 Msolar). We find that the sizes and velocities of the PNe shells are very sensitive to the adopted timescale during the transition time.

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