Computational Astrophysics Conference 2027
Abstract Deadline: October 31, 2026

Deepdish-Baguette

Stars, Black Holes, and Feedback
From Cosmic Dawn to Cosmic Noon
April 12 - 16, 2027
UChicago John W. Boyer Center in Paris, France
Deepdish-Baguette Cosmic Art showing Chicago and Paris skylines with a black hole accretion disk

Scientific Rationale

Uniting the global computational astrophysics community with leading observers to resolve the most formidable physical challenges of galaxy assembly and feedback across cosmic time.

Computational Frontiers in Galaxy Evolution

The rapid escalation of observational capabilities, spearheaded by the James Webb Space Telescope (JWST) and complemented by advanced ground-based facilities, has revealed an early Universe of unexpected complexity. From the birth of the first stellar systems at Cosmic Dawn (z > 10) to the peak epoch of star formation and supermassive black hole growth at Cosmic Noon (z ~ 2), contemporary models are being challenged at every scale. Unraveling the physics behind these discoveries requires a rigorous, multiscale framework that can only be built through state-of-the-art numerical simulations.

The **Deepdish-Baguette** conference serves as a premier international forum designed to bridge the gap between global numerical modelers and observational pioneers. By contrasting advanced computational techniques—such as star-by-star simulations, turbulent cloud modeling, live dust dynamics, and anisotropic cosmic ray transport—with the latest observational constraints, this meeting aims to address the most critical questions in galaxy assembly. The conference name symbolizes the collaboration between the computational cosmology heritage of the University of Chicago and the rich astrophysical simulation groups of Paris and broader Europe. This event is proudly supported by the International Institute of Research in Paris (IIRP).

Key Numerical Themes

Star-by-Star Galaxy Scale Simulations

Resolving individual stars and stellar feedback inside global galaxy simulations to capture cluster formation, IMF sampling, and gas chemistry on parsec scales.

High-Res GMCs & Stellar Feedback

Modeling turbulent Giant Molecular Clouds (GMCs) at sub-parsec scales to study radiation pressure, wind driving, early stellar feedback, and cloud disruption.

Galaxy Simulations with Live Dust

Implementing active dust grains: tracing dust formation, stellar source enrichment, grain growth/destruction, and gas-dust dynamics.

Cosmic Rays in Galaxies & the ISM

Modeling cosmic ray transport, anisotropic diffusion, and acceleration to investigate their feedback role in galaxy formation and the ISM.

CGM Modelling & Gaseous Halos

Simulating the multiphase circumgalactic medium (CGM), including metal-line cooling, cold gas accretion streams, and galactic wind recycling.

AGN Feedback & Black Hole Growth

Modeling black hole seed formation, hyper-Eddington accretion, and mechanical/radiative active galactic nuclei (AGN) feedback at high redshift.

Epoch of Reionization Simulations

Simulating radiation transport on cosmological scales, the contribution of early galaxies, and the ionization state of the IGM.

Numerical Methods Frontier

Pushing computational boundaries with next-generation grid/particle solvers, GPU-accelerated codes, and novel AMR algorithms.

Conference Program

The detailed daily schedule and list of accepted talks will be finalized and posted here in early 2027.

Program To Be Announced

The Scientific Organizing Committee is currently structuring the daily sessions. The final program will blend scene-setting keynotes from observational pioneers with selected oral presentations covering our numerical themes.

Key Deadlines

August 14, 2026
Abstract Submission Opens
October 31, 2026
Abstract Submission Closes
December 15, 2026
Full Program Released

Confirmed Invited Speakers

World-class astrophysicists leading observational and theoretical studies of the early universe.

Dan Stark

University of California, Berkeley

Michaela Hirschmann

EPFL

Christoph Pfrommer

Leibniz Institute for Astrophysics Potsdam

Lucia Armillotta

University of Florence

Tiago Costa

Newcastle University

Debora Sijacki

University of Cambridge

Marta Volonteri

Institut d'Astrophysique de Paris

Girish Kulkarni

Tata Institute of Fundamental Research

Dominique Aubert

University of Strasbourg

Ulli Steinwandel

Max Planck Institute for Astrophysics

Matthieu Schaller

Leiden University

Anna de Graaff

Max Planck Institute for Astronomy

Evan Schneider

University of Pittsburgh

Nick Gnedin

University of Chicago

Hsiao-Wen Chen

University of Chicago

Venue & Logistics

The conference will take place at the brand new University of Chicago Boyer Center in Paris.

The University of Chicago John W. Boyer Center in Paris

John W. Boyer Center
International Institute of Research in Paris
41 rue des Grands Moulins | 75013 Paris, France

Registration & Abstract Submission

Portals will activate on August 14, 2026. Abstract submissions close on October 31, 2026.

Portals Opening Soon

The registration portal and abstract submission forms are currently locked. Submissions will open on **August 14, 2026** at 00:00 UTC.

Submissions open in: Calculating...

Organizing Committees

The scholars coordinating the scientific program and hosting logistics.

Scientific Organizing Committee (SOC)

  • Harley Katz University of Chicago
  • Yohan Dubois Institut d'Astrophysique de Paris
  • Francisco Rodriguez Montero University of Chicago
  • Taysun Kimm Yonsei University
  • Joki Rosdahl CRAL Observatoire de Lyon
  • Oscar Agertz Lund University
  • Martin Rey University of Oxford
  • Corentin Cadiou Institut d'Astrophysique de Paris
  • Julien Devriendt University of Oxford
  • Adrianne Slyz University of Oxford
  • Romain Teyssier Princeton University

Local Organizing Committee (LOC)

  • Harley Katz University of Chicago
  • Yohan Dubois Institut d'Astrophysique de Paris
  • Francisco Rodriguez Montero University of Chicago
  • Melissa Guarte UChicago Center in Paris
Submission successful!