par Lykou, Foteini;Ramstedt, Sofia;Maercker, Matthias;Hron, Josef;Zijlstra, Albert A.A.;Tuthill, Peter P.G.;Norris, Barnaby R M;Kluska, Jacques;Paladini, Claudia 
;Lagadec, Eric;Wittkowski, Markus
Référence EAS publications series, 71-72, page (217-222)
Publication Publié, 2015-12
;Lagadec, Eric;Wittkowski, MarkusRéférence EAS publications series, 71-72, page (217-222)
Publication Publié, 2015-12
Article révisé par les pairs
| Résumé : | It is commonly accepted that asymmetries found in the post-AGB stars and planetary nebulae should originate as early as during the AGB phase. We present results from our high-angular resolution observing programs, with an aperture masking technique on the VLT, of a sample of evolved stars that were known to present asymmetries at larger spatial scales (e.g. jets, torii and/or bipolar nebulae). Disk-like structures have been found in the vicinity of at least two of these stars. |
