- Home
- Volume 93 - Année 2024
- No 3 - 41st Liège International Astrophysical Coll...
- 41st Liège International Astrophysical Colloquium: The Eventful Life of Massive Star Multiples – Foreword
View(s): 70 (9 ULiège)
Download(s): 0 (0 ULiège)
41st Liège International Astrophysical Colloquium: The Eventful Life of Massive Star Multiples – Foreword
Attached document(s)
original pdf fileAbstract
The 41st LIAC “The eventful life of massive star multiples” took place in Liège in July 2024. The following articles of this volume constitute the proceedings of contributions presented at this conference. Their main themes are the formation of massive multiple systems, the various interactions in these systems and their consequences on the subsequent stellar evolution, as well as the endpoints of evolution with single- and double-compact binaries.
Table of content
This work is distributed under the Creative Commons CC BY 4.0 Licence.
The Eventful Life of Massive Star Multiples
1Since the first stars lit up the Universe, the most massive objects of the stellar population (> 10 M⊙) have been prominent actors in cosmic evolution. Massive stars exert strong feedback on their environment thanks to their bright ionizing radiation, varied nucleosynthesis processes, and large mechanical input (from winds, eruptions, and supernovae). Most, if not all, of these massive stars reside in multiple systems and the presence of companion(s) affects their evolution throughout their entire lives.
2Our conference “The eventful life of massive star multiples” proposed to take an in-depth look at these massive stellar couples, from their formation to their afterdeath as remnants, and to examine the various aspects of the binary interactions at all stages. It was organized in the framework of the series of Liège International Astrophysical Colloquia (LIAC), continuing an heritage of previous colloquia focused on massive stars (33rd LIAC, 38th LIAC, 39th LIAC). The conference took place in Liège during the week of 15–19 July 2024 with 87 participants from institutes in 21 countries all over the world (Fig. 1).
Figure 1: The group photo of the 41st LIAC meeting.
3The scientific organizing committee (SOC) was composed of Yaël Nazé (chair), Maxime Fays (co-chair), Enrico Bozzo, Alessandra Corsi, Laurent Mahy, Nicole St Louis, Ling Sun, and Dany Vanbeveren. The local organizing committee (LOC) gathered Yaël Nazé (chair), Maxime Fays (co-chair), Giacomo Bruno, Jean-René Cudell, Alain Detal, Damien Hutsemékers, Nicole Massin, Thierry Morel, and Gregor Rauw. Particular care was given to gender, seniority, and geographical distributions: the final program reflects the statistics of the proposals; gender parity was achieved for SOC, session chairs, and invited reviewers; and session chairs were all chosen amongst junior researchers (less than 10 years since PhD graduation).
4The colloquium was organized in five thematic sessions: (1) Formation of massive binaries; (2) A life with interactions; (3) Binaries with compact objects; (4) Gravitational waves; and (5) Future facilities. After a broad call that received many answers, the program was finalized around seven invited reviews, 53 contributed talks, and 25 posters. The following articles in this volume constitute the proceedings of these contributions. The variety of their subjects reveals the many aspects that need to be studied to gain a full understanding of the behaviour of massive binaries. While much impressive progress has been achieved in recent years, the current limits of observations and theories were also pointed out, revealing ways for future improvements. Overall, with new facilities and open challenges, the future truly looks bright for the domain of massive multiples.
Our thanks go to all participants for their very interesting contributions that made this conference a success, the colleagues who agreed to act as referees for these proceedings, the LOC, SOC, as well as “colloquium assistants” (N. Britavskiy, A. Della Vecchia, P. Kolaczek-Szymanski, M. Pasqualini, A. Rauw, S. Rosu) for their practical help in organizing this conference, and to our sponsors (the FNRS and the University of Liège – in particular RISE, the Faculty of Sciences, and the STAR research unit).
Further Information
Authors’ ORCID identifiers
50000-0003-4071-9346 (Yaël Nazé)
60000-0002-8201-1525 (Enrico Bozzo)
Author contributions
7YN organized the colloquium, chaired its committees, and edited the proceedings for the first two themes (formation and life of massive multiples), EB was part of the SOC and edited the proceedings for the last two themes (XRBs and GWs).
Conflicts of interest
8The authors declare that there is no conflict of interest.
To cite this article
About: Yaël Nazé
GAPHE, Université de Liège, Allée du Six-Août 19c, B–4000 Liège, Belgium
email : ynaze@uliege.be