| Issue |
EAS Publications Series
Volume 71-72, 2015
The Physics of Evolved Stars: A Conference Dedicated to the Memory of Olivier Chesneau
|
|
|---|---|---|
| Page(s) | 313 - 314 | |
| Section | Circumstellar Environments | |
| DOI | https://doi.org/10.1051/eas/1571073 | |
| Published online | 01 December 2015 | |
E. Lagadec, F. Millour and T. Lanz (eds)
EAS Publications Series, 71–72 (2015) 313-314
The Very Fast Evolution of Bi-Lobed Planetary Nebulae
1 Centre for Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, ul. Grudziadzka 5, 87–100 Torun, Poland
2 Jodrell Bank Centre for Astrophysics, School of Physics & Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, UK
3 Instituto de Astronomia, Universidad Nacional Autonoma de Mexico, Apdo. Postal 70264, Mex. D.F., 04510 Mexico, Mexico
We study the kinematical ages of six Galactic bulge planetary nebulae selected purely on their bi-lobed morphology. The ages are derived from pseudo-3D photoionization and kinematical models, using HST images and UVES spectra and assuming axial symmetry. The bi-lobed nebulae show similar kinematical ages (∼1500 yrs), despite of their different sizes, expansion velocities and stellar temperatures.
© EAS, EDP Sciences, 2015