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Circumbinary discs around post-AGB binaries as a result of binary interactions: an infrared interferometric view
Published online by Cambridge University Press: 30 November 2022
Abstract
Post-Asymptotic Giant Branch (post-AGB) binary systems are binary interaction products. These stars have recently undergone a strong, but not well understood, binary interaction phase, leading to the formation of stable, compact circumbinary discs. These circumbinary discs are found to show many similar properties to protoplanetary discs around young stars. Here, we focus on one such system, namely IRAS 08544-4431 and resolve the inner regions of the complex circumstellar environment using multi-wavelength infrared interferometric techniques. The visibility data of PIONIER (H-band), GRAVITY (K-band), and MATISSE (L and N band) are analysed together using two families of geometric models, giving a good fit to all data.
Keywords
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- Contributed Paper
- Information
- Proceedings of the International Astronomical Union , Volume 16 , Symposium S366: The Origin of Outflows in Evolved Stars , November 2020 , pp. 277 - 280
- Copyright
- © The Author(s), 2022. Published by Cambridge University Press on behalf of International Astronomical Union