Evolved stars, multiplicity and planets: Shaping and Being Shaped by Stellar Evolution

Theo Khouri; Wouter Vlemmings; Elvire De Beck; Tomek Kamínski; Taïssa Danilovich; Marie Van de Sande; Devika Kamath; Maksym Mohorian; Shazrene Mohamed; Alain Baudry; Raghvendra Sahai; Carmen Sánchez-Contreras; Javier Alcolea; Luis Velilla-Prieto; Léa Planquart; Leen Decin; Pierre Kervella; Bannawit Pimpanuwat; Matthias Maercker; Sandra Etoka; Behzad Bojnordi Arbab; Ramlal Unnikrishnan; Guillermo Quintana-Lacaci; Miguel Santander-García

arXiv · 2610.21827

Evolved stars, multiplicity and planets: Shaping and Being Shaped by Stellar Evolution

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Abstract

Understanding how planets and stellar companions survive and interact with their host stars as they evolve, or are ultimately destroyed in the process, is essential both for predicting the long-term future of planetary systems like our own and the contribution of stars to galactic chemical evolution. In this white paper, we discuss how the next generation ALMA (ALMA2040) will revolutionize our understanding of the key processes by detecting and characterising accreting companions and planetary engulfment signatures in hundreds of systems with evolved stars.

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Theo Khouri, Wouter Vlemmings, Elvire De Beck, Tomek Kamínski, Taïssa Danilovich, Marie Van de Sande, Devika Kamath, Maksym Mohorian, Shazrene Mohamed, Alain Baudry, Raghvendra Sahai, Carmen Sánchez-Contreras, Javier Alcolea, Luis Velilla-Prieto, Léa Planquart, Leen Decin, Pierre Kervella, Bannawit Pimpanuwat, Matthias Maercker, Sandra Etoka, Behzad Bojnordi Arbab, Ramlal Unnikrishnan, Guillermo Quintana-Lacaci, Miguel Santander-García. 2026-10-15. Evolved stars, multiplicity and planets: Shaping and Being Shaped by Stellar Evolution. https://arxiv.org/abs/2610.21827

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