Asymmetries in AGB Stars: New Results from Aperture Masking Techniques

Autor(en)

F. Lykou, J. Hron, C. Paladini, A. A. Zijlstra, P. G. Tuthill, B. Norris, E. Lagadec

Abstrakt

Recent studies have shown that the extended circumstellar envelopes of AGB stars are not always spherical in shape. Moreover, the majority ofpost-AGB stars exhibit highly aspherical shapes, such as bipolar nebulaeand equatorial waists in the form of dusty and gaseous disks and/or tori. As such, one should expect that the origin of the morphological changes seen in later evolutionary stages can be traced during the AGB phase. We now present a study of AGB stars using aperture masking interferometry to resolve such aspherical structures.

Organisation(en)

Institut für Astrophysik

Seiten

203 - 208

Publikationsdatum

08-2015

ÖFOS 2012

103004 Astrophysik, 103003 Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/asymmetries-in-agb-stars-new-results-from-aperture-masking-techniques(1b11ccfa-89ca-4759-bd98-48270d341c81).html