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  1. Article

    Author Correction: The messy death of a multiple star system and the resulting planetary nebula as observed by JWST

    Orsola De Marco, Muhammad Akashi, Stavros Akras, Javier Alcolea… in Nature Astronomy (2023)

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    Article

    The messy death of a multiple star system and the resulting planetary nebula as observed by JWST

    Planetary nebulae—the ejected envelopes of red giant stars—provide us with a history of the last, mass-losing phases of 90% of stars initially more massive than the Sun. Here we analyse images of the planetary...

    Orsola De Marco, Muhammad Akashi, Stavros Akras, Javier Alcolea… in Nature Astronomy (2022)

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    Article

    On the signature of a 70-solar-mass black hole in LB-1

    Michael Abdul-Masih, Gareth Banyard, Julia Bodensteiner, Emma Bordier… in Nature (2020)

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    Article

    Binary (Post) AGB evolution

    In this contribution the observational characteristicsof F to G type post-AGB stars, showing both O-rich andC-rich circumstellar chemistry, are reviewed. It turnsout that binarity and the presence of a stablec...

    Hans Van Winckel in Astrophysics and Space Science (2001)

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    Chapter

    What Can We Learn from Post-AGB Chemical Studies on the AGB 3 RD Dredge-Up Phenomena?

    In this contribution we focus on the remarkably divers detailed chemical patterns observed in post-AGB stars and we address the question whether AGB (nucleosynthetic) evolutionary models can be further constra...

    Hans van Winckel, Maarten Reyniers in Post-AGB Objects as a Phase of Stellar Evolution (2001)

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    Chapter

    The Very Lithium Rich Post-AGB SB2 Binary HD 172481

    Double lined spectroscopic binaries in an evolved stage of evolution are expected to be extremely rare since they must consist of equally luminous and thus almost equally evolved objects, which requires an ext...

    Maarten Reyniers, Hans van Winckel in Post-AGB Objects as a Phase of Stellar Evolution (2001)

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    Chapter and Conference Paper

    The Link between Barium Stars and Optically Bright Post-AGB Binaries

    Systematic radial velocity monitoring programs revealed that all optically bright, high-latitude post-AGB stars that show a near-IR excess in their energy distribution are binaries (see the contribution of R. ...

    Hans Van Winckel, Christoffel Waelkens, Alain Jorissen, Sophie Van Eck… in Planetary Nebulae (1997)

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    Chapter and Conference Paper

    Geometry of Post-AGB Shells

    Post-AGB stars are low- and intermediate-mass objects in the rapid evolutionary stage between the asymptotic giant branch (AGB) and the planetary-nebula stage. Their study is important both because it concerns...

    Christoffel Waelkens, Rens Waters, Hans Van Winckel in Science with the VLT Interferometer (1997)

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    Article

    Binarity of the red-rectangle and other extremely fe-poor (post?)-AGB stars

    We present radial velocity measurements proving the binary nature of all the known extremely Fe-deficient Post-ABG stars including HD 44179, the central star of the well known but poorly understood Red-Rectang...

    Hans Van Winckel, Christoffel Waelkens in Astrophysics and Space Science (1995)

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    Chapter and Conference Paper

    Binarity of the Red-Rectangle and Other Extremely Fe-Poor (Post?)-AGB Stars.

    We present radial velocity measurements proving the binary nature of all the known extremely Fe-deficient Post-ABG stars including HD 44179, the central star of the well known but poorly understood Red-Rectang...

    Hans Van Winckel, Christoffel Waelkens in Circumstellar Matter 1994 (1995)