Code of Conduct
The organizers are committed to making this focus meeting productive and enjoyable for everyone, regardless of any aspects of identity. The SOC will make sure all participants abide by the ISC rules on non-discrimination, as well as the IAU anti-harassment policy, to help us achieve a safe and positive focus meeting for everyone.


Program Outline (with confirmed speakers)
We allocated six slots for targeted invited talks. All remaining slots will be filled with oral contributions by junior and senior scientists who register and submit an abstract for this meeting. The SOC members will not have guaranteed slots for talks. We will also have a dedicated flash poster session, one of whose purpose is to give early career scientists (including graduate students) visibility and an opportunity to advertise their research.
1. The FUV and EUV from massive stars: Andreas Sander
1.1. Can we trust models for the ionizing continuum of massive stars?
1.2. What is the ionizing source of nebular He II?
1.3. What are the properties of extremely metal-poor massive stars?
2. Binary stars: Hugues Sana
2.1. Frequency of massive stars in binaries
2.2. Effects on population properties in star clusters
2.3. Observational tests
3. Very massive stars and very metal-poor stars: Miriam García
3.1. Probability of existence and future observation
3.2. Theoretical properties
3.3. Clues from observations of massive super star clusters
4. Massive stars in extragalactic star clusters: Paul Crowther
4.1. Implications for massive stars from cluster observations
4.2. Is the stellar initial mass function universal?
4.3. Scaling relations with observed properties: masses, ages, formation efficiency
5. Feedback from massive stars in stellar clusters: Sara Beck
5.1. Mechanical energy from stellar winds and supernovae in stellar clusters
5.2. How does time-dependent feedback affect the dynamics and chemical composition of the ISM?
5.3. Evidence of multiple populations in young clusters and link to evolved clusters
6. Population models for young star clusters: Gustavo Bruzual
6.1. Do observations of clusters suggest deficiencies in our understanding of massive star evolution?
6.2. Constraining the EUV ionizing continuum from FUV stellar population synthesis models


We will provide an updated program with all speakers as soon as the final schedule becomes available.