Back to Volume
Paper: Evolution of the Central Stars of Young Planetary Nebulae
Volume: 493, 19th European Workshop on White Dwarfs
Page: 533
Authors: Hajduk, M.; van Hoof, P. A. M.; Zijlstra, A. A.
Abstract: The evolution of central stars of planetary nebulae was hitherto documented in just a few cases. We look for evolutionary changes of the [O iii] 5007 Å line flux in the spectra of planetary nebulae. We compared nebular fluxes collected over a time interval of a decade or more. We used literature data and newly obtained spectra. A grid of Cloudy models was computed using existing evolutionary models and compared with the observations. The observed evolution of the [O iii] 5007 Å/rmHβ line flux ratio is consistent with the evolutionary model calculations for H-rich central stars. Low-excitation planetary nebulae with [WR]-type and wels central stars show slower evolution than their coutnerparts containing H-rich central stars.
Back to Volume