193 citations · 299 across the 4 of their papers we have counts for
7 papers · 1 filter
SPITZER survey of dust grain processing in stable discs around binary post-AGB stars
C. Gielen, H. Van Winckel, M. Min +2
Aims: We investigate the mineralogy and dust processing in the circumbinary discs of binary post-AGB stars using high-resolution TIMMI2 and SPITZER infrared spectra. Methods: We pe…
AGB nucleosynthesis in the Large Magellanic Cloud. Detailed abundance analysis of the RV Tauri star MACHO47.2496.8
M. Reyniers, C. Abia, H. Van Winckel +4
Context. Abundance analysis of post-AGB objects as probes of AGB nucleosynthesis. Aims. A detailed photospheric abundance study is performed on the carbon-rich post-AGB candidate M…
Binary post-AGB stars and their Keplerian discs
Hans Van Winckel, Tom Lloyd Evans, Maarten Reyniers +2
In this contribution we give a progress report on our systematic study of a large sample of post-AGB stars. The sample stars were selected on the basis of their infrared colours an…
Keplerian discs around post-AGB stars: a common phenomenon?
S. De Ruyter, H. Van Winckel, T. Maas +3
Aims: We aim at showing that the broad-band SED characteristics of our sample of post-AGB stars are best interpreted, assuming the circumstellar dust is stored in Keplerian rotatin…
A Unique Dust Formation Episode in the SC-Type Star UY Cen
Justin D. R. Steinfadt, Geoffrey C. Clayton, Tom Lloyd Evans +1
We report the first detection of new dust formation in an SC star. The prototype of the SC stars, UY Cen, underwent a decline of 2 magnitudes in the V-band. The SC stars show pulsa…
IRAS 08544-4431 : a new post-AGB star in a binary system surrounded by a dusty disc
T. Maas, H. Van Winckel, T. Lloyd Evans +5
We present an analysis of our extensive data-set on IRAS 08544-4431. It is the first object we discuss of our newly defined sample of stars, selected for their position in the 'RV…