The systematic observational hunt for electromagnetic transients has revealed a growing diversity of supernova types and explosion-related phenomena. Progenitor searches have succeeded in identifying an increasing number of supernova progenitors and progenitor candidates, beginning to bridge the gap between massive star evolution and final stellar deaths as single stars and in binaries. Multi-wavelength studies of supernova remnants have collected an amazing wealth of precious data about the hydrodynamic and nucleosynthetic fingerprints left by the blast wave of the explosion. The computational modeling of supernovae and of the latest stages of progenitor evolution has become feasible in three spatial dimensions, and our theoretical picture of the neutrino-driven mechanism and of its consequences is on the way to mature.

While the progress in each area is remarkable, the accelerating inflow of observational data has posed more new riddles not only for the rare outliers of the stellar death events, than it was able to solve. Tying the many loose ends together will require the close(r) interaction of modelers and observers of progenitor stars, supernovae, and supernova remnants. Only then it will be possible to draw the right conclusions and to find answers for some of the most nagging astrophysical questions, for example:

  • What are the explosion mechanisms of massive stars?
  • How does binary evolution affect the stellar death?
  • What is the fraction of black-hole forming cases?
  • What is the fundamental systematics behind the growing zoo of supernova-like events?
  • What is the role of stellar rotation and magnetic fields?
  • How can the properties of the compact remnants of stellar core collapse be explained?

This workshop was intended to foster the interaction of the mentioned communities and follows up a similar, productive meeting at Chicheley Hall in June 2016.


The workshop was held at Ringberg Castle, 50 km south of Munich. It offers full-board accommodation and an inspiring atmosphere for intense communication, particularly fruitful for workshops.

Show on a map Castle's website


  • Local Organizing Committee:
    Hans-Thomas Janka
    Tobias Melson
    Alexander Summa
    Thomas Ertl
  • Max Planck Institute for Astrophysics
    Karl-Schwarzschild-Straße 1
    85748 Garching b. München
  • psrc@mpa-garching.mpg.de
  • Maria Depner (Secretary)
    +49 89 30000 2214

Sponsored by the ERC

This workshop was sponsored by the European Research Council under Advanced Grant AdG No. 341157-COCO2CASA.

Website ERC Project COCO2CASA


Last updated: 2017-07-25


Monday, July 24
12:30 - 14:00Lunch
14:00 - 14:10Hans-Thomas Janka (MPA)Welcome Address
14:10 - 14:35Justyn Maund (University of Sheffield)Resolved stellar populations as probes of the progenitors of supernovae   
14:35 - 15:00Schuyler Van Dyk (Caltech/IPAC)The Direct Identification of Core-Collapse SN Progenitors
15:00 - 15:25Emma Beasor (Liverpool John Moores University)The evolution of RSG to SN
15:25 - 15:50Jorick Vink (Armagh Observatory and Planetarium)SN Progenitor identification from mass loss   
15:50 - 16:20Coffee break
16:20 - 16:45Matteo Cantiello (Center for Computational Astrophysics, Flatiron Institute)Local and Global Radiation Hydrodynamics Simulations of Massive Star Envelopes   
16:45 - 17:10Alexander Heger (Monash Centre for Astrophysics)The seeds of supermassive black holes   
17:10 - 17:35Philipp Podsiadlowski (University of Oxford)Neutron-Star and Black-Hole Kicks   
17:35 - 18:00Ryosuke Hirai (Waseda University)The binary companion to the progenitor of iPTF13bvn   
18:00 - 18:25Manos Zapartas (University of Amsterdam)Predicting the Presence of Companions for Stripped-Envelope Core-Collapse Supernovae: The Case of the Broad-Lined Type IC SN 2002AP   
Tuesday, July 25
09:00 - 09:25Paul Crowther (University of Sheffield)On the spatial distribution of massive stars in star-forming galaxies and inferences for progenitors of ccSNe
09:25 - 09:50Fabian Schneider (University of Oxford)Influence of binary mass-transfer on pre-supernova stellar structures   
09:50 - 10:15Ben Davies (Liverpool John Moores University)The Red Supergiant Problem, and a reappraisal of the masses of II-P progenitors
10:15 - 10:40Jacob Jencson (California Institute of Technology)Hunting for the missing supernovae with SPIRITS   
10:40 - 11:10Coffee break
11:10 - 11:35Ken'ichi Nomoto (Kavli IPMU, University of Tokyo)Electron capture supernovae from super AGB stars   
11:35 - 12:00Christopher Kochanek (Ohio State University)The LBT Survey for Failed Supernovae and its First Candidate
12:00 - 12:25Ko Nakamura (Fukuoka University)Systematic features of core-collapse supernova based on multi-D simulations   
12:30 - 14:30Lunch
14:30 - 14:55Robert Bollig (MPA)Muon Creation in Supernova Matter Facilitates Neutrino-driven Explosions   
14:55 - 15:20Jerome Guilet (CEA Saclay)How to form a millisecond magnetar? Magnetic field amplification in a protoneutron star   
15:20 - 15:45Martin Obergaulinger (University of Valencia)Core collapse with rotation and magnetic fields: explosions, black holes, magnetars   
15:45 - 16:10Thierry Foglizzo (CEA Saclay)The impact of modest stellar rotation on the asymmetric explosion of massive stars   
16:10 - 16:40Coffee break
16:40 - 17:05Tomoya Takiwaki (National Astronomical Observatory of Japan)Rotation aided neutrino driven-explosions   
17:05 - 17:30Remi Kazeroni (MPA)The development of neutrino-driven convection in core-collapse supernovae: 2D vs 3D   
17:30 - 17:55Quintin Mabanta (Florida State University)Effects of Turbulence on the Critical Conditions of Explosion   
17:55 - 18:20Jeremiah Murphy (Florida State University)A Unifying Explosion Condition for Core-collapse Supernova   
Wednesday, July 26
09:00 - 09:25Kei Kotake (Fukuoka University)Correlation and Directionality of Multimessenger Signals in 3D Core-Collapse Supernova Models   
09:25 - 09:50Haakon Andresen (MPA)How does moderate progenitor rotation affect the gravitational wave signal from core-collapse supernovae?   
09:50 - 10:15Kosuke Sumiyoshi (Numazu College of Technology)2D/3D Core-collapse supernovae explored by 6D Boltzmann neutrino transport   
10:15 - 10:40Oliver Just (RIKEN)Supernova simulations with the ALCAR code
10:40 - 11:10Coffee break
11:10 - 11:35Akira Harada (University of Tokyo)The Rotating Core-Collapse Supernova Simulation with Full Boltzmann Neutrino Transport   
11:35 - 12:00Bernhard Müller (Queen's University Belfast / Monash University)Core-Collapse Supernova Simulations from 3D Progenitor Models   
12:00 - 12:25William Raphael Hix (Oak Ridge National Laboratory)Lessons on the Nucleosynthesis from Multi-dimensional Supernova models   
12:30 - 14:00Lunch
14:00 - 14:25Dan Patnaude (Smithsonian Astrophysical Observatory)Connecting Supernova Remnants to Their Explosions and Progenitors
14:25 - 14:50Ping Zhou (University of Amsterdam)Spatially resolved study of supernova remnant W49B: on its supernova properties and explosion mechanism   
14:50 - 15:15Iair Arcavi (University of California, Santa Barbara)The Impossible Supernova
15:15 - 15:40Elena Sorokina (Lomonosov Moscow State University)Bumpy Light Curves of Supernovae as Indicators of the Interaction with CSM   
15:40 - 16:05Coffee break
16:05 - 16:30Sergei I. Blinnikov (ITEP, Moscow)Central Engines and Environment of Superluminous Supernovae   
16:30 - 16:55Shing-Chi Leung (Kavli IPMU, University of Tokyo)Effects of rotation and metallicity on the pre-collapse evolution of Pulsation Pair-Instability Supernovae   
16:55 - 17:20Alexey Tolstov (Kavli IPMU, University of Tokyo)Superluminous supernova models: from X-ray to near-infrared photometry   
17:20 - 17:45Josefin Larsson (KTH Royal Institute of Technology, Stockholm)Blackbody components in the early afterglows of gamma-ray bursts: new insight into the progenitors
17:45Castle tour
Thursday, July 27
09:00 - 09:25Annop Wongwathanarat (RIKEN)Long-time three-dimensional core-collapse supernova simulations   
09:25 - 09:50Claudia Travaglio (INAF - Astrophysical Observatory Turin)Multi-d core collapse supernovae nucleosynthesis to forge connections to the chemical enrichment of the cosmos
09:50 - 10:15Jason Spyromilio (ESO)Supernova 1987A at 30
10:15 - 10:40Victor Utrobin (ITEP, Moscow)Mixing constraints on the progenitor of supernova 1987A   
10:40 - 11:10Coffee break
11:10 - 11:35Claes Fransson (Stockholm University, Oskar Klein Centre)The ejecta and circumstellar interaction of SN 1987A
11:35 - 12:00Athira Menon (Monash University)Binary mergers and blue supergiants: progenitors of SN 1987A and other peculiar Type-II supernovae   
12:00 - 12:25Lars Bildsten (KITP, University of California, Santa Barbara)Core Collapse Supernovae Light Curves that Incorporate Rayleigh-Taylor Mixing with MESA   
12:30 - 14:30Lunch
14:30 - 14:55Roland Diehl (MPE)Gamma ray lines from young SNR   
14:55 - 15:20Christoph Weinberger (MPE)Kinematic constraints of SNe by Ti-44 gamma ray measurements   
15:20 - 15:45Anatoly Iyudin (Lomonosov Moscow State University)What are chances for Cas A being produced by the binary system?   
15:45 - 16:15Coffee break
16:15 - 18:30Honoring session for Ewald Müller's retirement
16:15 - 16:55Friedrich Thielemann (University of Basel)Supernovae, Magnetic Fields and a few Basel Attempts to Copy Ewald Müller's Activities   
16:55 - 17:10Jose Maria Ibanez (University of Valencia)The Garching-Valencia collaboration: a personal touch
17:10 - 17:50Miguel-Angel Aloy (University of Valencia)Are relativistic jets the birth cryings of supernova remnants?   
17:50 - 18:30Harald DimmelmeierEwald meets Einstein: A story of general relativistic core collapse, happy PhD research years and a few lessons for life
18:30Dinner (Bavarian Night)
Friday, July 28
09:00 - 09:25Michael Gabler (MPA)From a Supernova towards its remnant with 3D simulations
09:25 - 09:50Gilles Ferrand (RIKEN)3D simulations of young supernova remnants   
09:50 - 10:15Salvatore Orlando (INAF - Osservatorio Astronomico di Palermo)Connecting Supernova Remnants to their progenitor SN explosions: the Cassiopeia A laboratory   
10:15 - 10:40Satoru Katsuda (Chuo University)Explosion asymmetries anti-correlating with neutron-star kicks in young supernova remnants
10:40 - 11:10Coffee break
11:10 - 11:35Maria Arias de Saavedra Benitez (University of Amsterdam)Cassiopeia A at LOFAR frequencies
11:35 - 12:00Frederic Vogt (ESO)The multi-faceted MUSE view of 1E 0102.2-7219
12:00 - 12:25Wolfgang Kerzendorf (ESO)The surviving companion of Cassiopeia A   
12:30 - 14:30Lunch
14:30 - 18:30Free afternoon (self-organized excursion)