000002716 001__ 2716
000002716 005__ 20160701171709.0
000002716 037__ $$aASTROimport-873
000002716 100__ $$aHajduk, M.
000002716 245__ $$aEvolution of the Central Stars of Young Planetary Nebulae
000002716 260__ $$c2015
000002716 520__ $$aThe evolution of central stars of planetary nebulae was hitherto documented in just a few cases. We look for evolutionary changes of the [O iii] 5007 Å line flux in the spectra of planetary nebulae. We compared nebular fluxes collected over a time interval of a decade or more. We used literature data and newly obtained spectra. A grid of Cloudy models was computed using existing evolutionary models and compared with the observations. The observed evolution of the [O iii] 5007 Å/rmHß line flux ratio is consistent with the evolutionary model calculations for H-rich central stars. Low-excitation planetary nebulae with [WR]-type and wels central stars show slower evolution than their coutnerparts containing H-rich central stars. 
000002716 700__ $$a van Hoof, P. A. M.
000002716 700__ $$a Zijlstra, A. A.
000002716 773__ $$c533$$p19th European Workshop on White Dwarfs$$v493$$y2015
000002716 85642 $$ahttp://esoads.eso.org/abs/2015ASPC..493..533H
000002716 905__ $$apublished in
000002716 980__ $$aNONREF