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| Paper: |
A Tale of Two Stars: Interferometric Studies of Post-AGB Binaries |
| Volume: |
497, Why Galaxies Care about AGB Stars III: A Closer Look in Space and Time |
| Page: |
175 |
| Authors: |
Hillen, M.; Menu, J.; de Vries, B. L.; Van Winckel, H.; Min, M.; Mulders, G. D.; Gielen, C.; Wevers, T.; Regibo, S.; Verhoelst, T. |
| Abstract: |
Binaries with circumbinary disks are commonly found among
optically bright post-AGB stars. Although clearly linked to binary
interaction processes, the formation, evolution and fate of these disks
are still badly understood. Due to their compactness, interferometric
techniques are required to resolve them. Here, we discuss our
high-quality multiwavelength interferometric data of two prototypical
yet very different post-AGB binaries, AC and 89 Herculis, as well
as the modeling thereof with radiative transfer models. A detailed
account of the data and models of both objects is published in three
separate papers elsewhere; here we focus on comparing the modeling
results for the two objects. In particular we discuss the successes
and limitations of the models which were developed for protoplanetary
disks around young stars. We conclude that multiwavelength
high-angular-resolution observations and radiative transfer disk
models are indispensible to understand these complex interacting
objects and their place in the grand scheme of the (binary) evolution
of low and intermediate mass stars. |
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