Program & Talks

Download the full list of abstracts at

https://grg.uib.es/newfrontiersNR25/wp-content/uploads/2025/07/NRFR_abstracts.pdf

The talks are available at

drive.google.com/newfrontiersNR25_talks

Conference Schedule

Monday

Mathematical Foundations + Beyond GR

8:30 – 9:00
Registration
9:00 – 9:30
Welcome + Introduction to Numerical Relativity
Carles Bona & Bernd Bruegmann (UIB + University of Jena)
9:30 – 10:15
Axisymmetric Black Hole Threshold
Daniela Cors (University of Cambridge)
10:15 – 11:00
Well-posed initial value formulation of general effective field theories of gravity
Aron Kovacs (Queen Mary University of London)
11:00 – 11:30
Coffee Break
11:30 – 11:45
Solving the gravitational self-force problem with numerical relativity methods
Nils Vu (Caltech)
11:45 – 12:00
Gauge fixing and strong hyperbolicity in second-order gravity theories
Fernando Abalos (UIB)
12:00 – 12:15
Hyperboloidal highway to the frontier at future null infinity
Alex Vano-Vinuales (UIB)
12:15 – 12:30
A kinetic theory model for relativistic stars
Hannes Rüter (Instituto Superior Técnico)
12:30 – 12:45
Probabilistic Numerical Relativity: Solving Einstein’s equations as a Bayesian regression problem
Frederik De Ceuster, Tom Colemont (KU Leuven)
12:45 – 13:00
Near-critical spacetimes of axisymmetric gravitational wave collapse
Tomáš Ledvinka (Charles University)
13:00 – 13:15
Reformulation of Einstein equations in the Fully Constrained Formulation
Isabel Cordero-Carrión (University of Valencia)
13:15 – 13:30
Numerical simulations of gravitational collapse on null cones
Carsten Gundlach (University of Southampton)
13:30 – 15:00
Lunch Break
15:00 – 15:45
Numerical relativity for modified gravity
Helvi Witek (University of Illinois)
15:45 – 16:30
Nonlinear dynamics of compact object mergers beyond General Relativity
Max Corman (Max Planck Institute for Gravitational Physics)
16:30 – 16:45
Break
16:45 – 17:00
Binary Neutron Stars in scalar-Gauss-Bonnet gravity
Llibert Aresté Saló (KU Leuven)
17:00 – 17:15
Time evolution in the presence of ghosts: From toy models to black-hole binaries
Aaron Held (École Normale Supérieure)
17:15 – 17:30
Black hole mergers in scalar-Gauss-Bonnet gravity: unequal mass ratio and dynamical scalar field growth
Daniela Doneva (University of Tübingen)
17:30 – 17:45
Simulating scalarized black hole binaries in spectre
Guillermo Lara (Max Planck Institute for Gravitational Physics (Albert Einstein Institute))
Conference Schedule

Tuesday

ECOs + GRMHD + CoreCollapse + Collapsar

9:00 – 9:45
Boson stars through the prism of numerical relativity
Tamara Evstafyeva (Perimeter Institute)
9:45 – 10:00
Dynamical bosonic stars and GWs
Nicolas Sanchis-Gual (University of Valencia)
10:00 – 10:15
Current developments about rotating hairy black holes and clouds
Marcelo Salgado (UNAM)
10:15 – 10:30
Scalar field dark matter around binary neutron star mergers simulations
Rohan Srikanth (University of Potsdam)
10:30 – 11:00
Flash talks
Samuel Gomez, Claudio Lazarte, José Carlos Olvera Meneses, Juan Antonio Carretero, José Ferreira, Lorenzo Cipriani, Ludovico Machet, Simone Albanesi, Christian Peterson Bórquez, Shaun Swain
11:00 – 11:30
Coffee Break
11:30 – 12:15
Numerical relativity in the early universe
Josu Aurrekoetxea (MIT)
12:15 – 12:30
Non-linear Stability of Flux Compactifications with Numerical Relativity
Panagiotis Giannadakis (King’s College London)
12:30 – 12:45
Primordial black hole formation from domain wall collapse
Matthew Elley (University of the Basque Country)
12:45 – 13:00
Oscillon Formation in Modified Gravity
Areef Waeming (Queen Mary University of London)
13:00 – 13:30
Flash talks
Conner Dailey, Mads Sørensen, Keneth Miler, Sara Azizi, Carlo Musolino, Oliver Long, Giuseppe Rivieccio, Juan Calderon Bustillo, Krinio Marouda, David Alvarez Castillo
13:30 – 15:00
Lunch Break
15:00 – 15:45
New Frontiers of Extreme Plasma Physics Modeling in Numerical Relativity
Elias Most (Caltech)
15:45 – 16:00
Novel analysis technique for turbulence measurements near black holes
Rita Megale (Universita’ della Calabria)
16:00 – 16:15
Multi-scale Turbulence in Astrophysical Plasmas Near Black Holes
Mario Imbrogno (Universita’ della Calabria)
16:15 – 16:30
The Impact of Black Hole Spin on Black Hole–Neutron Star Mergers
Rahime Matur (University of Southampton)
16:30 – 16:45
Break
16:45 – 17:00
Self-consistent scenario for jet and stellar explosion in collapsar
Masaru Shibata (Max Planck Institute for Gravitational Physics)
17:00 – 17:15
3D GRMHD Simulations of Black Hole Formation in Core-Collapse Supernovae
Philipp Moesta (University of Amsterdam)
17:15 – 17:30
3D full-GR simulations of magnetorotational core-collapse supernovae on GPUs: A systematic study of rotation rates and magnetic fields
Swapnil Shankar (University of Tennessee/Hamburg Observatory)
17:30 – 17:45
Gravitational waves from 3D GRMHD simulations of magnetorotational core-collapse supernovae
Sophia C. Schnauck (Max Planck Institute for Astrophysics)
17:45 – 18:00
Ignition of weak interactions and r-process outflows in massive collapsar accretion disks
Aman Agarwal (University of Greifswald)
Conference Schedule

Wednesday

Codes + High Performance Computing

9:00 – 9:15
Black hole-accretion disk collision in general relativity: Axisymmetric simulations
Alan Tsz Lok Lam (Max Planck Institute for Gravitational Physics)
9:15 – 9:30
Compact Object Mergers with MHDuet
Steve Liebling (Long Island University)
9:30 – 9:45
A general-relativistic full Boltzmann solver
Arthur Offermans (KU Leuven)
9:45 – 10:00
GR-Athena++: general-relativistic moment-based radiation magneto-hydrodynamics
Boris Daszuta (Friedrich-Schiller-Universität)
10:00 – 10:15
A first–order BSSNOK formulation of the Einstein equations for numerical relativity
Olindo Zanotti (University of Trento)
10:15 – 10:30
Simulating binary black holes with SpECTRE
Geoffrey Lovelace (California State University, Fullerton)
10:30 – 10:45
Gravitational wave science with Dendro-GR
David Neilsen (Brigham Young University)
10:45 – 11:15
Flash talks
Antoni Ramos-Buades, Aurora Capobianco, Felix Heinze, Peter James Nee, Fatemeh Hossein Nouri, Joan Fontbuté, Liiyung Yeow, Prayush Kumar, Jorge Expósito Patiño, Zexin Hu, Marie Cassing
11:15 – 11:45
Coffee Break
11:45 – 12:45
Panel members intro
Sebastiano Bernuzzi, Tim Dietrich, Kenta Kiuchi, Carlos Palenzuela, Miren R. Radia, Harald Pfeiffer and Swapnil Shankar
12:45 – 13:30
Panel discussion
13:30 – 15:00
Lunch Break
15:00 –
FREE AFTERNOON
Conference Schedule

Thursday

Neutron Stars

9:00 – 9:45
Frontiers across central engines: mergers, explosions, jets, and nucleosynthesis
Daniel Siegel (University of Greifswald)
9:45 – 10:00
Dynamos in Neutron Star Remnants: importance of non-ideal effects
Alexis Reboul-Salze (Max-Planck Institute for Gravitational Physics)
10:00 – 10:15
Thermal effects on inertial modes of long-lived binary neutron stars
Milton Ruiz (University of Valencia)
10:15 – 10:30
Turbulence in Magnetized Neutron Stars
William Cook (Friedrich-Schiller University Jena)
10:30 – 11:00
Flash talks
Jinliang Jiang, Konrad Topolski, Yong Gao, Anson Ka Long Yip, Giacomo Fedrigo, Hao-Jui Kuan, Pravita Hallur, Giuseppe Ficarra, Fabrizio Venturi Piñas, Ivan Markin
11:00 – 11:30
Coffee Break
11:30 – 11:45
Jet from binary neutron star merger with prompt black hole formation
Kota Hayashi (Max Planck Institute for Gravitational Physics)
11:45 – 12:00
Monte Carlo-based neutrino-radiation hydrodynamics simulations for pair annihilation driven jets from black-hole torus systems
Kyohei Kawaguchi(Max Planck Institute for Gravitational Physics)
12:00 – 12:15
Binary Neutron Stars: from macroscopic collisions to microphysics and astrophysics
Luciano Rezzolla (Goethe University Frankfurt)
12:15 – 12:30
Accurate muonic interactions in neutron-star mergers and impact on heavy-element nucleosynthesis
Harry Ho-Yin NG (Goethe University Frankfurt)
12:30 – 12:45
Diverse scenarios of massive stellar collapse
Takami Kuroda (Max Planck Institute for Gravitational Physics)
12:45 – 13:00
The robustness of magnetic field amplification in neutron star mergers
Ricard Aguilera Miret (Hamburg Universität)
13:00 – 13:15
Fast ejecta from neutron star mergers
Stephan Rosswog ( Hamburg Observatory )
13:15 – 13:30
Amplification and coherent structure formation processes in the magnetic field evolution of long-lived remnants from binary neutron star mergers
Michael Müller ( University of Greifswald )
13:30 – 15:00
Lunch Break
15:00 – 15:45
Monte Carlo radiation transport in neutron star merger simulations
Francois Foucart (University of New Hampshire)
15:45 – 16:00
Evolution of a black hole cluster in full general relativity
Jamie Bamber (University of Illinois Urbana-Champaign )
16:00 – 16:15
Bridging the gap between Numerical Relativity and Gravitational Self Force
Oliver Markwell (Max Planck Institute for Gravitational Physics)
16:15 – 16:30
General Relativistic Magnetohydrodynamic Simulations of Circumbinary Disk Accretion onto Recoiling Supermassive Black Hole Binaries
Maria Chiara de Simone (Rochester Institute of Technology)
16:30 – 16:45
Implementation of Radiation Transport in Neutron Star Mergers Using High-Order IMEX Schemes
Federico Schianchi (University of the Balearic Islands)
16:45 – 17:00
On the Role of Muons in BNS Merger Simulations
Henrique Gieg (University of Potsdam)
Conference Schedule

Friday

Miscellaneous + CBF

9:00 – 9:15
Eccentricity Reduction for High-Mass Ratio Compact Binaries
Anna Heffernan (University of Balearic Islands)
9:15 – 9:30
Black-hole – neutron-star mergers: new numerical-relativity simulations and multipolar effective-one-body model with spin precession and eccentricity
Alejandra Gonzalez (Universitat de les Illes Balears)
9:30 – 9:45
Impact of magnetic field gradients on the development of the MRI in binary neutron star mergers
Thomas Celora (ICE)
9:45 – 10:00
Sub-grid modelling of MRI-driven turbulence in magnetised, differentially rotating neutron stars
Miquel Miravet-Tenés (University of Southampton)
10:00 – 10:15
Understanding the black hole ring-down using numerical relativity
Xisco Jimenez (University of the Balearic Islands)
10:15 – 10:30
Simulating neutron stars with dissipative hydrodynamics
Lik Hang Harry Shum (University of Nottingham)
10:30 – 10:45
Divergence-Free Constraint Treatment in General- Relativistic Magneto-Hydrodynamic Simulations
Anna Neuweiler (University of Potsdam)
10:45 – 11:00
The Gregory-Laflamme Instability of Five-dimensional Black Strings in Lovelock Gravity
Shunhui Yao (Queen Mary University of London)
11:00 – 11:30
Coffee Break
11:30 – 12:00
The Mare Nostrum connection: Einstein, hydro, hyperbolicity, and more (CBF)
Toni Font (Universitat de Valencia)
12:00 – 12:30
Citizen H (CBF)
Joan Masso (UIB)
12:30 – 13:00
Hyperbolic formalisms of the Einstein equations: the untold story of the Z4 (CBF)
Carlos Palenzuela (UIB)
13:00 – 13:30
TBA
TBA
13:30
End of the Conference