TEONGRAV

Theory of Gravitational Wave Sources

NEWS

TEONGRAV members can have access to HPC resources thank to an agreement between INFN and CINECA. Contact Bruno Giacomazzo for more details.

MEETINGS

The next TEONGRAV annual meeting will take place in December 2023 in Naples. The exact dates will be communicated later in September. The meeting is open to all TEONGRAV members

JOBS

We have an opening for a 2-year postdoc position in the Milano-Bicocca unit on the topic "Numerical Relativity simulations of neutron star binary mergers". Applications are only accepted online via the following link: https://reclutamento.dsi.infn.it/ (search for job number 25864). The deadline for applications is November 10 2023 (11:59 a.m. CET) and the starting date for the position should be no later than November 1st 2024. Candidates planning to finish their PhD before November 1st 2024 are also welcome to apply.

The candidate will work under the supervision of Prof. Bruno Giacomazzo. The numerical relativity group in Milano-Bicocca is currently composed of Prof. Bruno Giacomazzo, a postdoc (Dr. Federico Cattorini), and three master students (Margherita Carola De Angelis, Maria Chiara de Simone, Massine El Kabir).

The candidate is expected to carry on research in numerical relativity simulations of magnetized binary neutron star (NS) mergers via the Spritz code with a particular focus on the effect of nuclear matter, neutrinos, and magnetic fields in the post-merger evolution and the related gravitational wave and electromagnetic emission. The numerical relativity group in Milano-Bicocca is currently performing simulations of NS-NS and NS-black hole (NS-BH) without magnetic fields with the WhiskyTHC code as well as general relativistic magnetohydrodynamic simulations of accretion onto merging supermassive black holes via the IllinoisGRMHD code. All codes (Spritz included) are based on the Einstein Toolkit. We are currently testing the Spritz code in numerical simulations of NS-NS mergers and on the formation of short gamma-ray bursts from these events. Within Italy, the numerical relativity group in Milano-Bicocca has close collaborations with the TEONGRAV groups of Padova (Dr. Riccardo Ciolfi) and Trento (Prof. Albino Perego). The group has also a very active collaboration with the numerical relativity group of the Rochester Institute of Technology in the USA (Prof. Manuela Campanelli). Here we list some of the main publications relevant to this call:

1. Werneck et al 2023, Addition of tabulated equation of state and neutrino leakage support to illinoisgrmhd
2. Kalinani et al 2022, Implementing a new recovery scheme for primitive variables in the general relativistic magnetohydrodynamic code Spritz
3. Lazzati et al 2021, Two Steps Forward and One Step Sideways: The Propagation of Relativistic Jets in Realistic Binary Neutron Star Merger Ejecta
4. Cipolletta et al 2021, Spritz: General Relativistic Magnetohydrodynamics with Neutrinos
5. Cipolletta et al 2020, Spritz: a new fully general-relativistic magnetohydrodynamic code

The astrophysics unit at Milano-Bicocca provides a vibrant environment with expertise covering all aspects of gravitational-wave astronomy, relativistic astrophysics, and numerical relativity, as well as a wider astronomical context including observational and experimental activities. The gravitational wave group is composed of professors Monica Colpi, Massimo Dotti, Davide Gerosa, Bruno Giacomazzo, and Alberto Sesana. The group has tight connections with the LISA Consortium, the Virgo Collaboration, the Einstein Telescope Observational Science Board, the European Pulsar Timing Array, the Italian National Institute for Nuclear Physics (INFN), and the Italian Center for Supercomputing (ICSC).

Milan is a beautiful, international city in the north of Italy with history, art, and outstanding food. Mountains and lakes are just around the corner.