Special Session SS9  23 June 2025

Massive Stars and their Diverse Transients

Aims and scope

We aim to bring together two communities: those studying massive stars and those investigating their associated core-collapse supernovae. These communities are strongly bound scientifically but rarely interact in person due to the scope of typical massive star and supernova conferences. The overarching goal is to inform each other of theory and observations that are at the intersection between the fields, guided by key questions such as:

  • What do we know about pre-collapse mass loss from models and theory, and how does it impact supernova observables?
  • What is the binary fraction of stars prior to core collapse, what are their companions, and does stellar multiplicity contribute to the diversity of supernovae?
  • What do transient observations tell us about the multiplicity and mass loss of their progenitor stars?
  • Which stars successfully explode as supernovae, and which implode to form black holes?

Programme

Below the final programme. We apologise for not being able to accommodate a large fraction of the contributed talk submissions. With over 60 submissions, the pressure factor was about 7 to 1.

*********************************************************************************

Session 1: Supernovae and their progenitors: direct and indirect evidence (Monday, 09:00 - 10:30, Cumminis G10)

  • 09:00 - 09:45: Morgan Fraser & Avishay Gal Yam -- Linking supernovae and their progenitors (invited)
  • 09:45 - 10:00: Athira Menon -- The diversity of supernovae from blue supergiants
  • 10:00 - 10:15: Vincent Bronner -- How pulsations shape supernova light curves
  • 10:15 - 10:30: Takashi Moria -- Type Ibn supernovae from ultra-stripped supernova progenitors


Session 2: Mass-loss & circumstellar material (Monday, 15:00 - 16:30, Cumminis G10)

  • 15:00 - 15:45: Dan Perley & Andreas Sander -- Late stage mass loss and circumstellar material (invited)
  • 15:45 - 16:00: Kirsty Taggert -- A Type Ibn Supernova with Progenitor and Silicate Dust Formation
  • 16:00 - 16:15: Mark Siebert -- Exploring mass-loss and a remarkable outflow among supergiants in RSGC2
  • 16:15 - 16:30: Anamaria Gkini -- Eruptive mass loss in progenitors of superluminous supernovae


Session 3: Multiplicity among massive stars & supernovae (Monday, 17:00 - 18:30, Cumminis G10)

  • 17:00 - 17:45: Julia Bodensteiner & Manos Zapartas -- Multiplicity among massive stars & supernovae (invited)
  • 17:45 - 18:00: Dandan Wei -- Interacting Supernovae: Binary-Induced Circumstellar Material and Light Curve Modeling
  • 18:00 - 18:15: Kiril Maltsev -- Explodability criteria for the neutrino-driven supernova mechanism
  • 18:15 - 18:30: Alexey Bobrick -- Manifestations of Stellar Multiplicity in Core-Collapse Supernovae

    • Invited speakers

    Confirmed invited speakers:

    • Morgan Fraser University College Dublin, Ireland
    • Avishay Gal-Yam Weizmann Institute, Israel
    • Julia Bodensteiner University of Amsterdam, Netherlands
    • Manos Zapartas Institute of Astrophysics , Foundation of Research and Technology, Greece
    • Andreas Sander Astronomisches Rechen-Institut, Heidelberg, Germany
    • Dan Perley Liverpool John Moores University, Liverpool, UK

    Scientific organisers

    • Dr. Tomer Shenar, (Tel Aviv University, Israel)
    • Prof. Iair Arcavi, (Tel Aviv University, Israel)
    • Dr. Claudia Gutiérrez, (IEEC Institute of Space Studies of Catalonia, Spain)
    • Dr. Emma Beasor, (Liverpool John Moores University, UK)
    • Dr. Avishai Gilkis, (University of Cambridge, UK)
    • Dr. Charlotte Angus, (Queen's University Belfast, UK)
    • Prof. Jon Sundqvist, (KU Leuven, Belgium)

    Contact

    Tomer Shenar; tshenar @ tau.ac.il ; Iair Arcavi; arcavi @ tauex.tau.ac.il

    Updated on Wed May 28 13:56:35 CEST 2025
European Astronomical Society