6 papers
The symphony of pulsations and binarity among massive stars using HERMES spectroscopy and TESS photometry
K. Thomson-Paressant, D. M. Bowman, F. Nardini +16
A wide range of variability mechanisms exist among intermediate mass and massive stars, which are not yet fully understood. Using complementary data sources for a large population…
SPHERE/ZIMPOL insights into discs around evolved stars: arcs, asymmetries and dust properties
Kateryna Andrych, Devika Kamath, Hans Van Wincke +5
Second-generation circumbinary discs around evolved binary stars, such as post-Asymptotic Giant Branch (post-AGB) binaries, provide insights into poorly understood mechanisms of du…
Post-AGB Binaries as Interacting Systems
Hans Van Winckel
We present recent progress in our understanding of the physical interaction mechanisms at work in evolved binaries of low-to-intermediate initial mass, which are surrounded by a st…
Modelling the impact of circumbinary disk accretion on post-AGB binary evolution and surface chemistry
Kayla Martin, Orsola De Marco, Devika Kamath +2
Post-asymptotic giant branch (post-AGB) binaries are surrounded by dusty circumbinary disks, and exhibit unexpected orbital properties resulting from poorly understood binary inter…
Tracing Chemical Depletion in Evolved Binaries Hosting Second-Generation Transition Discs
Maksym Mohorian, Devika Kamath, Meghna Menon +4
The mechanisms responsible for chemical depletion across diverse astrophysical environments are not yet fully understood. In this paper, we investigate chemical depletion in post-A…
Multiwavelength high-resolution polarimetric imaging of second-generation disc around post-AGB binary IRAS 08544-4431 with SPHERE
Kateryna Andrych, Devika Kamath, Hans Van Winckel +4
Exploring the formation and evolution of second-generation circumbinary discs around evolved binary stars, such as post-Asymptotic Giant Branch (post-AGB) and post-Red Giant Branch…