000002737 001__ 2737
000002737 005__ 20160701171710.0
000002737 037__ $$aASTROimport-894
000002737 100__ $$aMayer, A.
000002737 245__ $$aLarge-scale asymmetries in the winds of (binary) AGB stars
000002737 260__ $$c2014
000002737 520__ $$aObservations of 78 Asymptotic Giant Branch (AGB) stars and Red Supergiants were carried out with the PACS photometer on-board Herschel as part of the MESS (Mass loss of Evolved StarS) program. For about 60% of these objects, the dusty wind differs from spherically symmetric and reveals a complex morphology. The majority of these asymmetries are caused by a rather simple incident, the interaction of the stellar wind with the interstellar medium. A bow shock is formed in direction of the stellar motion where the two media interact. However, also much more irregular shapes are encountered in the sample. These structures are often related to the binarity of the stellar system. Accreted material by the companion can cause nova outbursts or bipolar outflows which are relatively common. A rather rare encounter are Archimedean spirals that are imprinted in the wind which are now found for a handful of objects, among W Aquilae observed with Herschel and R Sculptoris with ALMA. The most complicated structures in the MESS sample indicate the interplay of multiple interacting influences. A prominent case is o Ceti (Mira). Its exceptionally high space motion produces a strong bow shock and its white dwarf companion drags an Archimedean spiral into the deformed stellar wind bubble and pierces it with a fast bipolar outflow. 
000002737 700__ $$a Jorissen, A.
000002737 700__ $$a Kerschbaum, F.
000002737 700__ $$a Ottensamer, R.
000002737 700__ $$a Nowotny, W.
000002737 700__ $$a Aringer, B.
000002737 700__ $$a Paladini, C.
000002737 700__ $$a Mecina, M.
000002737 700__ $$a Pourbaix, D.
000002737 700__ $$a Groenewegen, M.
000002737 700__ $$a Mohamed, S.
000002737 773__ $$c59$$pAsymmetrical Planetary Nebulae VI Conference$$y2014
000002737 85642 $$ahttp://esoads.eso.org/abs/2014apn6.confE..59M
000002737 905__ $$apublished in
000002737 980__ $$aNONREF