Bridging Gaps in High-Mass Star Research: Physical Parameters, Formation and Evolution

10 August - 04 September 2026

Sergio Simón-Díaz, Alceste Bonanos, Sylvia Ekström, Miguel A. Urbaneja, Ashley Barnes

Week 1
Mon 10/08/2026
Time Session
9:30 - 10:00

Welcome and introductory remarks

Miguel A. Urbaneja

10:00 - 11:00

Episodic mass loss in evolved massive stars

Alceste Bonanos

14:30 - 15:30

Stellar Masses and Mass-Loss Rates: Challenges and Perspectives

Lydia Cidale, Michalis Kourniotis

Tue 11/08/2026
Time Session
9:30 - 10:30

Hydrodynamically Consistent Mass-Loss Rates for Very Massive Stars: Wind Physics, Stellar Evolution, and Cosmic Implications

Gautham Sabhahit

14:30 - 15:30

High-Velocity Absorption Events in the Atmospheres of Blue Supergiants

Olga Maryeva, Lydia Cidale, Anahi Granada

Wed 12/08/2026
Time Session
9:30 - 10:30

LBVs as binary evolution products: mergers and mass gainers

Nathan Smith

14:30 - 15:30

Discussion

Thu 13/08/2026
Time Session
9:30 - 10:30

Massive Stars as Extragalactic Probes of Cosmic Abundances and Distances

Rolf Kudritzki

14:30 - 15:30

Be stars as laboratories for angular-momentum and mass loss in rapidly rotating B stars

Anahi Granada, Lydia Cidale

Fri 14/08/2026
Time Session
9:30 - 10:00

A first version of FASTWIND-3D (soon available at request)

Jon Sundqvist, Lara Delbroek, Nicolas Moens

10:00 - 10:30

Does atmospheric turbulent pressure mean a doubling of the spectroscopic mass of the most massive stars?

Lara Delbroek, Jon Sundqvist, Nicolas Moens

14:30 - 15:30

Wrap up session

Week 2
Mon 17/08/2026
Time Session
9:30 - 10:00

Welcome and introductory remarks

Sylvia Ekström

10:00 - 11:00

Winds and Evolution of Supergiants

Jorick Vink

14:30 - 15:30

Surface abundances of massive stars as tracers for mixing processes and angular momentum transport

Norbert Przybilla

Tue 18/08/2026
Time Session
9:30 - 10:30

Open questions regarding the origin and evolutionary impact of massive star magnetic fields

Gregg Wade, James Barron

14:30 - 15:30

Angular Momentum Loss and X-ray Emission in Massive Stars Winds: a short update

Asif ud-Doula

Wed 19/08/2026
Time Session
9:30 - 10:10

From Massive Binary Stars to Black Hole Systems: What Gravitational Waves and Gaia Reveal About massive star evolution?

Aleksandra Olejak

10:10 - 10:50

Spectrointerferometry as a tool to spatially resolve the winds, companions and interactions of massive stars

Abigail Frost

14:30 - 15:30

Discussion

Thu 20/08/2026
Time Session
9:30 - 10:30

Mass transfer in massive binaries

Norbert Langer

14:30 - 15:30

Chemical fingerprints of mass transfer in massive stars

Harim Jin

Fri 21/08/2026
Time Session
9:30 - 10:30

Improving the treatment of the outer regions of massive stars in evolution models

Thomas Voje

14:30 - 15:30

Wrap up session

Week 3
Mon 24/08/2026
Time Session
9:30 - 10:00

Welcome and introductory remarks

Ashley Barnes

10:00 - 11:00

Is it really needed to jump from 5000 to 50000 OB-type stars to understand massive star evolution?

Sergio Simón-Díaz

14:30 - 15:30

N-body Interactions, Explosive Outflows, Feedback, and the Origin of Stellar Masses

John Bally

Tue 25/08/2026
Time Session
9:30 - 10:30

Mass, Multiplicity, and Massive-Star Evolution: Open Questions Across Environments

Jaime Villaseñor, Tomer Shenar

14:30 - 15:30

Mass and angular momentum assembly in the formation of massive stars

Rolf Kuiper, André Oliva

Wed 26/08/2026
Time Session
9:30 - 10:10

Bistability jumps

Matheus Bernini Peron

10:10 - 10:50

New clues on the TAMS location: implications for stellar models and the presence of binary products

Luca Sciarini, Abel de Burgos

14:30 - 15:30

Discussion

Thu 27/08/2026
Time Session
9:30 - 10:30

The interplay between angular momentum transport, tidal interactions, and internal mixing in close binaries

Sophie Rosu, Luca Sciarini

14:30 - 15:10

Stripped star masses as benchmark for stellar structure

Ylva Goetberg

15:10 - 15:50

Stripped-envelope stars across the mass ladder - where do we stand and what are we missing?

Andreas Sander

Fri 28/08/2026
Time Session
9:30 - 10:30

Two Clocks for Massive-Star Formation: The H II-Region Lifetime and ZAMS Problems

Paolo Padoan

14:30 - 15:30

Wrap up session

Week 4
Mon 31/08/2026
Time Session
9:30 - 10:00

Welcome and introductory remarks

Sergio Simón-Díaz

10:00 - 11:00

The Formation and Feedback of Massive Stars Across Scales and Environments"

Ashley Barnes

14:30 - 15:30

Modeling the combined outflow from a dense cluster of stars with strong stellar winds

Stan Owocki

Tue 01/09/2026
Time Session
9:30 - 10:30

Massive stars in the early Universe: clues from globular cluster abundances and gravitational waves

Mark Gieles

14:30 - 15:10

Have we got a valid template for the low-Z Universe?

Ignacio Negueruela

15:10 - 15:50

Low-metallicity massive stellar populations as high-z analogues

Calum Hawcroft

Wed 02/09/2026
Time Session
9:30 - 10:10

Feedback from massive stars in star cluster and galaxy simulations

Claude Cournoyer-Cloutier

10:10 - 10:50

Candidate Intermediate-mass Black Hole Discovered in an Extremely Young Low-metallicity Cluster in a Nearby Tadpole Galaxy

Q. Daniel Wang

14:30 - 15:30

Discussion

Thu 03/09/2026
Time Session
9:30 - 10:30

The role of OB stars in the new era of Galactic cartography

Michelangelo Pantaleoni González

14:30 - 15:10

Massive runaway stars: an increasingly important tool for our understanding of OB stars

Mar Carretero-Castrillo

15:10 - 15:50

Helium enrichment in O-type stars: challenges from the observations of binaries

Carlos Martínez-Sebastián

Fri 04/09/2026
Time Session
9:30 - 10:10

The MUDEHaR potential: A discussion on Hα Time-domain Astronomy

Gonzalo Holgado

10:10 - 10:50

Improving Chemical Abundance Determinations in Early B-Type Stars.

Alba Casasbuenas

14:30 - 15:30

Wrap up session

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