000002708 001__ 2708
000002708 005__ 20160701171709.0
000002708 037__ $$aASTROimport-865
000002708 100__ $$aMecina, M.
000002708 245__ $$aDust in Stellar Winds: A Micro- and Macroscopic View
000002708 260__ $$c2015
000002708 520__ $$aIn the course of the MESS Guaranteed Time Key Program, geometrically thin and overall spherically symmetric detached shells were observed with Herschel/PACS amongst a morphologically diverse sample of (post-)AGB stars. We use 1D dust radiative transfer modelling to determine shell properties such as the dust mass, the corresponding mass-loss rate (MLR) and dust temperature, in order to assess the possible scenarios of shell formation. As an example we present the case of the carbon star U Hya. For the modelling the chosen dust properties are crucial, and we show the key aspects and their effect on the results obtained. We further attempt to establish a physical model of the observed stellar dust envelope by means of a stationary wind code to test whether an abrupt change in the MLR can cause the observed detached shell. 
000002708 700__ $$a Groenewegen, M. A. T.
000002708 700__ $$a Kerschbaum, F.
000002708 700__ $$a Aringer, B.
000002708 700__ $$a Nowotny, W.
000002708 700__ $$a Ottensamer, R.
000002708 700__ $$a Mayer, A.
000002708 700__ $$a Luntzer, A.
000002708 773__ $$c395$$pWhy Galaxies Care about AGB Stars III: A Closer Look in Space and Time$$v497$$y2015
000002708 85642 $$ahttp://esoads.eso.org/abs/2015ASPC..497..395M
000002708 905__ $$apublished in
000002708 980__ $$aNONREF