65 citations · 575 across the 18 of their papers we have counts for
18 papers
Low velocity streams inside the planetary nebula H 2-18. A 3D photoionization and kinematical reconstruction
K. Gesicki, A. Zijlstra, M. Hajduk +4
Aims. Numerous planetary nebulae show complicated inner structures not obviously explained. For one such object we undertake a detailed 3D photoionization and kinematical model ana…
The mysterious cut-off of the Planetary Nebula Luminosity Function
Krzysztof M. Gesicki, Albert A. Zijlstra, Marcelo M. Miller Bertolami
Planetary Nebulae (PN) emit enormous amount of energy in several emission lines. Measuring the line-flux for PNe in a given stellar population, the Planetary Nebula Luminosity Func…
Abundances in Galactic Bulge planetary nebulae from optical, ultraviolet and infrared observations
Christina L. Smith, Albert A. Zijlstra, Krzysztof M. Gesicki +1
Iron suffers from high levels of depletion in the highly ionized environments of planetary nebulae, making the direct determination of undepleted elemental iron abundances difficul…
Post-AGB evolution much faster than previously thought
K. Gesicki, A. A. Zijlstra, M. M. Miller Bertolami
For 32 central stars of PNe we present their parameters interpolated among the new evolutionary sequences. The derived stellar final masses are confined between 0.53 and 0.58 $M_\o…
3D pyCloudy modelling of bipolar planetary nebulae: evidence for fast fading of the lobes
K. Gesicki, A. A. Zijlstra, C. Morisset
We apply an axially symmetric pseudo-3D photoionization model, pyCloudy, to derive the structures of 6 bipolar nebulae and 2 suggested post-bipolars in a quest to constrain the bip…
The evolving spectrum of the planetary nebula Hen 2-260
M. Hajduk, P. A. M. van Hoof, K. Gesicki +3
We analysed the planetary nebula Hen 2-260 using optical spectroscopy and photometry. We compared our observations with the data from literature to search for evolutionary changes.…