About me

I'm a Spanish Astrophysicist living in Switzerland. Between fondues and chocolates I like to study explosive scenarios using the smoothed particle hydrodynamics technique (SPH). My main focus is on Supernova explosions, and I have developed one of the few hydrodynamics codes (SPHYNX) that can simulate in 3D both types of Supernovas: Type Ia and Core Collapse.

I'm also interested in mergers and collisions of stellar objects, like for example compact objects such as white dwarfs and neutron stars, and their relevance for Supernova explosions and gravitational wave emission.

Computational Astrophysics is a very demanding field, where the knowledge on Astrophysics meets the knowledge in high-performance computing (HPC). In that respect I'm also diving deeper in the world of efficient, resilient, and scalable computing, in order to enable more complex, detailed, and longer astrophysical simulations.

Additionally, my current position allows me to get in contact with researchers from different fields, including life sciences, imaging, and computational sciences. In this respect, I'm lucky enough to contribute to truly interdisciplinary projects.


Current projects

These are some of the projects in which I'm currently involved.


SPHYNX: an open source density-based new-generation Smoothed Particle Hydrodynamics code for Astrophysical applications

This is a always on-going project. SPHYNX is the result of a work over a span of decades. This is an state-of-the-art smoothed particle hydrodynamics code that includes the latest improvements in the world of SPH. 



The SPH-EXA project aims at the ambitious goal of having a scalable and fault tolerant SPH kernel, developed into a mini/proxy co-design application that is exascale-ready. It is part of the Platform for Advanced Scientific Computing.

Core collapse Supernova

Numerical simulations of 3D CCSN using Smoothed Particle Hydrodynamics and different approximate neutrino treatments:

Type Ia Supernova in rotating WDs

Test the feasibility if the GCD scenario as SNIa engine taking into account the Coriolis forces that appear in rotating WDs.


Numerical hydrodynamics

Development in the Smoothed Particle Hydrodynamics method. Hydrodynamical instabilities and the Integral Approach to Derivatives. Dynamically adaptative kernels. 2D-axial SPH and self-gravity. Generalized volume elements.


Rubén M. Cabezón

Scientific Computing Center
sciCORE - Office 1111
Klingelbergstrasse 61

Departement Physik
Universität Basel
Klingelbergstrasse 82

CH-4056 Basel

+41 61 207 18 82

ruben.cabezon <at>



Self-gravitating barotropic equilibrium configurations of rotating bodies with SPH
García-Senz, D.; Cabezón, R. M.; Blanco-Iglesias, J.M.; Lorén-Aguilar, P.
Accepted by A&A (2020)

A multi-dimensional implementation of the Advanced Spectral neutrino Leakage scheme
Gizzi, D.; O'Connor, E.; Rosswog, S.; Perego, A.; Cabezón, R. M.; Nativi, L.
MNRAS, 490, 4211 (2019)

Two-level dynamic load balancing for high performance scientific applications
Mohammed, A.; Cavelan, A.; Ciorba, F.; Cabezón, R. M.; Banicescu, I.
Accepted at Siam PP20

Finding Neighbors in a Forest: A b-tree for Smoothed Particle Hydrodynamics Simulations
Cavelan, A.; Cabezón, R. M.; Korndorfer, J. H. M., Ciorba, F.
Accepted at SPHERIC 2019

Explosion of fast spinning sub-Chandrasekhar mass white dwarfs
Domínguez, I.; Cabezón, R. M.; García-Senz, D.
Nuclei in the Cosmos XV. Springer Proceedings in Physics, 219 (2019)

SPH-EXA: Enhancing the Scalability of SPH codes via an Exascale-ready SPH mini-app

Guerrera, D.; Cavelan, A.; Cabezón, R. M.; Imbert, D.; Piccinali, J.-G.; Mohammed, A.; Mayer, L.; Reed, D.; Ciorba, F.

Detection of silent data corruptions in Smooth Particle Hydrodynamics simulations
Cavelan, A.; Cabezón, R. M.; Ciorba, F.
Accepted for CCGrid'19

The Gadolinium deposition debate revisited using a fully automated big data approach
Gehweiler, J.; Re, T.; Amann, M.; Schädelin, S.; Cabezón, R. M.; Stieltjes, B.
Accepted for RSNA'18

Towards a Mini-App for Smoothed Particle Hydrodynamics at Exascale
Guerrera, D.; Cabezón, R. M.; Piccinali, J.-G.; Cavelan, A.; Ciorba, F.; Reed, D.
IEEE International Conference on Cluster Computing (CLUSTER) (2018)

Core-collapse Supernovae in the hall of mirrors. A three-dimensional code comparison project
Cabezón, R. M.; Pan, K.-C.; Liebendörfer, M.; Kuroda, T.; Ebinger, K.; Heinimann, O.; Thielemann, K.-F.; Perego, A.
Astronomy & Astrophysics 619, A118 (2018)

Surface and core detonations in rotating white dwarfs
García-Senz, D.; Cabezón, R. M.; Domínguez, I. 
Astrophysical Journal, 862, 27 (2018)

DIAPHANE: a portable radiation transport library for astrophysical applications.
Reed, D.; Dykes, T.; Cabezón, R. M.; Gheller, C.; Mayer, L. 
Computer Physics Communications, 226, 1 (2018)

Nucleosynthesis in 2D Core-Collapse Supernova of 11.2 and 17.0 M Progenitors: Implications for Mo and Ru production.
Eichler, M.; Nakamura, K.; Takiwaki, T.; Kuroda, T.; Kotake, K.; Hempel, M.; Cabezón, R. M.; Liebendörfer, M.; Thielemann, F.-K.
J. Phys. G: Nucl. Part. Phys. 45, 1 (2018)

SPHYNX: an accurate density-based SPH method for astrophysical applications.
Cabezón, R. M.; García-Senz, D.; Figueira, J.
Astronomy & Astrophysics, 606, A78 (2017)

Exhaustive search for epistatic effects on the human methylome.
Egli, T.; Vukojevic, V.; Sengstag, T.; Jacquot, M.; Cabezón, R. M.; Coynel, D.; Freytag, V.; Heck, A.; Vogler, C.; Quervain, D.; Papassotiropoulos, A.; Milnik, A.
Nature Scientific Reports, 7, 13669 (2017)

Simulation of X-ray Bursts and Superbursts.
Reichert, J.; Fehlmann, S.; Cabezón, R. M.; Thielemann, F.-K.
JPS Conf. Proc. 14 - NIC2016, 020604 (2017)

Nucleosynthesis in 2D Core-Collapse Supernova Long-Term Simulations of 11.2 and 17.0 M Progenitors.
Eichler, M.; Nakamura, K.; Takiwaki, T.; Kuroda, T.; Kotake, K.; Hempel, M.; Cabezón, R. M.; Liebendörfer, M.; Thielemann, F.-K.
JPS Conf. Proc. 14 - NIC2016, 020509 (2017)

An advanced leakage scheme for neutrino treatment in astrophysical simulations.
Perego, A.; Cabezón, R. M.; Käppeli, R. 
Astrophysical Journal Supplement Series, 223, 22 (2016)

Type Ia Supernovae: Can Coriolis force break the symmetry of the gravitational confined detonation explosion mechanism?
García-Senz, D.; Cabezón, R. M.; Domínguez, I.; Thielemann, F. K. 
Astrophysical Journal, 819, 132 (2016)

Equalizing resolution in smoothing particle hydrodynamics calculations using self-adaptive sinc kernels.
García-Senz, D.; Cabezón, R. M.; Escartín, J. A.; Ebinger, K. 
Astronomy & Astrophysics, 570, A14 (2014)

Neutrino-driven winds from neutron star merger remnants.
Perego, A.; Rosswog, S.; Cabezón, R. M.; Korobkon, O.; Käppeli, R.; Arcones, A.; Liebendoerfer, M. 
MNRAS, 443, 3134 (2014)

MODA: a new algorithm to compute the optical depth in multi-dimensional hydrodynamics simulations.
Perego, A.; Gafton, E.; Cabezón, R. M.; Rosswog, S.; Liebendoerfer, M. 
Astronomy & Astrophysics, 568, A11 (2014)

High resolution simulations of the head-on collision of white dwarfs.
García-Senz, D.; Cabezón, R. M.; Arcones, A.; Relaño, A.; Thielemann, F.-K. 
MNRAS, 436, 3413 (2013)

Smoothed Particle Hydrodynamics: checking a tensor approach to calculating gradients.
Escartín, J. A.; García-Senz, D.; Cabezón R. M. 
Highlights of Spanish Astrophysics VII.
Proceedings of the X Scientific Meeting of the Spanish Astronomical Society (2013)

Testing the concept of integral approach to derivatives within the smoothed particle hydrodynamics technique in astrophysical scenarios.
Cabezón, R. M.; García-Senz, D.; Escartín J. A. 
Astronomy & Astrophysics, 545, A112 (2012)

Improving smoothed particle hydrodynamics with an integral approach to calculating gradients.
García-Senz, D.; Cabezón, R. M.; Escartín, J. 
Astronomy & Astrophysics, 538, A9 (2012)

ISFAA, prospects for an implicit SPH.
Escartín, J. A.; García-Senz, D.; Cabezón, R. M. 
Proceedings of the 6th International SPHERIC SPH Workshop (2011)

Merging in the common envelope and the origin of early R-type stars.
Piersanti, L.; Cabezón, R. M.; Zamora, O.; Domínguez, I.; García-Senz, D.; Abia, C.; Straniero, O.
Astronomy & Astrophysics, 522, A80 (2010)

The elusive nature of the R stars.
Domínguez, I.; Piersanti, L.; Cabezón, R. M.; Zamora, O.; García-Senz, D.; Abia, C.; Straniero, O.
Memorie della Societa Astronomica Italiana, 81, 1039 (2010)

Fluid Dynamics Simulations of Ejecta from Novae Explosions.
Campbell, S.; Jose, J.; Cabezon, R. M.; García-Berro, E. 
Proceedings of the 11th Symposium on Nuclei in the Cosmos. (2010)

Pulsating Reverse Detonation Models of Type Ia Supernovae. II. Explosion.
Bravo, E.; García-Senz, D.; Cabezón, R. M.; Domínguez, I. 
Astrophysical Journal, 695, 1257 (2009)

Axisymmetric smoothed particle hydrodynamics with self-gravity.
García-Senz, D.; Relaño, A.; Cabezón, R. M.; Bravo, E. 
MNRAS, 392, 346 (2009)

A one-parameter family of interpolating kernels for smoothed particle hydrodynamics studies.
Cabezón, Rubén M.; García-Senz, D.; Relaño, A. 
Journal of Computational Physics, 227, 8523 (2008)

Constraining Deflagration Models of Type Ia Supernovae through Intermediate-Mass Elements.
García-Senz, D.; Bravo, E.; Cabezón, R. M.; Woosley, S. E. 
Astrophysical Journal, 660, 509 (2007)

Gravitational waves as tracers of nuclear equation of state.
Cabezón, R. M.; García-Senz, D. 
Proceedings of Science (Supernova) 007 (2007)

High-Temperature Combustion: Approaching Equilibrium Using Nuclear Networks.
Cabezón, R. M.; García-Senz, D.; Bravo, E. 
Astrophysical Journal Supplement Series, 151, 345 (2004)

Coupling nuclear reaction rates with temperature in explosive conditions.
García-Senz, D., Cabezón, R. M. 
Nuclear Physics A, 718, 566 (2003)