| Issue |
EAS Publications Series
Volume 71-72, 2015
The Physics of Evolved Stars: A Conference Dedicated to the Memory of Olivier Chesneau
|
|
|---|---|---|
| Page(s) | 265 - 267 | |
| Section | Circumstellar Environments | |
| DOI | https://doi.org/10.1051/eas/1571059 | |
| Published online | 01 December 2015 | |
The Physics of Evolved Stars: A Conference Dedicated to the Memory of Olivier Chesneau
E. Lagadec, F. Millour and T. Lanz (eds)
EAS Publications Series, 71–72 (2015) 265-267
E. Lagadec, F. Millour and T. Lanz (eds)
EAS Publications Series, 71–72 (2015) 265-267
In Quest of the Circumstellar Dust Shell Structure in Proto-Planetary Nebulae
Dept. of Physics & Astronomy, University of Denver, Denver, USA
Dusty mass loss during the asymptotic giant branch (AGB) phase of low to intermediate initial mass stars results in a physically-detached circumstellar dust shell, also known as a proto-planetary nebula (PPN), in the subsequent post-AGB phase. PPNe can be observed indirectly via dust-scattering in the optical/near-IR and directly via thermal dust emission in the IR. The PPN morphologies, especially in those that are optically thin, therefore, provide critical clues for the elusive mass loss mechanisms. Here, a quest in search of the innermost PPN structures in the past 15 years is summarized.
© EAS, EDP Sciences, 2015