publications

2025

1. Numerical relativity simulations of compact binaries: Comparison of cell- and vertex-centered adaptive meshes

   Boris Daszuta, William Cook, Peter Hammond, and 4 more authors

   Phys. Rev. D, 112(10), Nov 2025

   DOI
2. Magnetic Field Configurations in Binary Neutron Star Mergers II: Inspiral, Merger and Ejecta

   William Cook, Eduardo M. Gutiérrez, Sebastiano Bernuzzi, and 6 more authors

   submitted to Phys. Rev. D, Aug 2025

   DOI
3. Magnetic Field Configurations in Binary Neutron Star Mergers I: Post-merger Remnant and Disk

   Eduardo M. Gutiérrez, William Cook, David Radice, and 6 more authors

   accepted for publication in Phys. Rev. D), Jun 2025

   DOI
4. Cocoon shock breakout emission from binary neutron star mergers

   Eduardo M. Gutiérrez, Mukul Bhattacharya, David Radice, and 2 more authors

   Phys. Rev. D, 111(6), Mar 2025

   DOI
5. Accretion Onto Supermassive Black Hole Binaries

   Eduardo M. Gutiérrez, Luciano Combi, and Geoffrey Ryan

   Invited Chapter in New Frontiers in GRMHD Simulations (eds. C. Bambi, Y. Mizuno, S. Shashank, F. Yuan), Springer Nature Singapore, Mar 2025

   Abs DOI

   In this chapter, we give an overview of our current understanding of the physics of accreting massive black hole binaries (MBHBs), with a special focus on the latest developments in numerical simulations and General-Relativistic Magnetohydrodynamics (GRMHD) simulations in particular. We give a self-contained global picture of how to model accretion onto MBHBs, analyzing different aspects of the system such as the dynamics of the circumbinary disk, mini-disks, outflows, the role of magnetic fields, and electromagnetic signatures. We discuss important questions and open problems related to these systems, what are the advantages and disadvantages of the different numerical approaches, and what robust knowledge we have built from simulations.

6. A Parameter Study of the Electromagnetic Signatures of an Analytical Mini-disk Model for Supermassive Black Hole Binary Systems

   Kaitlyn Porter, Scott C. Noble, Eduardo M. Gutiérrez, and 4 more authors

   The Astrophys. J., 979(2), Feb 2025

   DOI

2024

1. Non-thermal radiation from dual jet interactions in supermassive black hole binaries

   Eduardo M. Gutiérrez, Luciano Combi, Gustavo E. Romero, and 1 more author

   Mon. Not. R. Astron. Soc., 532(1), Jul 2024

   DOI
2. General relativistic magnetohydrodynamical simulations of accretion flows through traversable wormholes

   Luciano Combi, Huan Yang, Eduardo Gutierrez, and 3 more authors

   Phys. Rev. D, 109(10), May 2024

   DOI

2023

1. First results of the glitching pulsar monitoring programme at the Argentine Institute of Radioastronomy

   Ezequiel Zubieta, Ryan Missel, Valentina Sosa Fiscella, and 10 more authors

   Mon. Not. R. Astron. Soc., 521(3), May 2023

   DOI

2022

1. Electromagnetic Signatures from Supermassive Binary Black Holes Approaching Merger

   Eduardo M. Gutiérrez, Luciano Combi, Scott C. Noble, and 4 more authors

   The Astrophys. J., 928(2), Apr 2022

   DOI
2. Vela pulsar: single pulses analysis with machine learning techniques

   Carlos O. Lousto, Ryan Missel, Harshkumar Prajapati, and 12 more authors

   Mon. Not. R. Astron. Soc., 509(4), Feb 2022

   DOI

2021

1. Nonthermal processes in hot accretion flows onto supermassive black holes: An inhomogeneous model

   E. M. Gutiérrez, F. L. Vieyro, and G. E. Romero

   Astron. & Astrophys., 649, May 2021

   DOI
2. PSR J0437-4715: The Argentine Institute of Radioastronomy 2019-2020 Observational Campaign

   V. Sosa Fiscella, S. del Palacio, L. Combi, and 11 more authors

   The Astrophys. J., 908(2), Feb 2021

   DOI

2020

1. The Origin of Matter at the Base of Relativistic Jets in Active Galactic Nuclei

   Gustavo E. Romero and Eduardo Gutiérrez

   Universe, 6(7), Jul 2020

   DOI
2. Cosmic rays from the nearby starburst galaxy NGC 253: the effect of a low-luminosity active galactic nucleus

   E. M. Gutiérrez, G. E. Romero, and F. L. Vieyro

   Mon. Not. R. Astron. Soc., 494(2), May 2020

   DOI
3. A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A*

   Eduardo M. Gutiérrez, Rodrigo Nemmen, and Fabio Cafardo

   The Astrophys. J. Lett., 891(2), Mar 2020

   DOI
4. Upgraded antennas for pulsar observations in the Argentine Institute of Radio astronomy

   G. Gancio, C. O. Lousto, L. Combi, and 9 more authors

   Astron. & Astrophys., 633, Jan 2020

   DOI

2019

1. A note on geodesics in inhomogeneous expanding spacetimes

   D. Pérez, G. E. Romero, L. Combi, and 1 more author

   Classical and Quantum Gravity, 36(5), Mar 2019

   DOI

2018

1. Primordial black hole evolution in two-fluid cosmology

   E. M. Gutiérrez, F. L. Vieyro, and G. E. Romero

   Mon. Not. R. Astron. Soc., 473(4), Feb 2018

   DOI