English

Realistic binary neutron star initial data with Elliptica

General Relativity and Quantum Cosmology 2024-11-20 v2 Solar and Stellar Astrophysics Computational Physics

Abstract

This work introduces the Elliptica pseudo-spectral code for generating initial data of binary neutron star systems. Building upon the recent Elliptica code update, we can now construct initial data using not only piecewise polytropic equations of state, but also tabulated equations of state for these binary systems. Furthermore, the code allows us to endow neutron stars within the binary system with spins. These spins can have a magnitude close to the mass shedding limit and can point in any direction.

Keywords

Cite

@article{arxiv.2407.01701,
  title  = {Realistic binary neutron star initial data with Elliptica},
  author = {Alireza Rashti and Andrew Noe},
  journal= {arXiv preprint arXiv:2407.01701},
  year   = {2024}
}

Comments

Elliptica code is now open-source; please see https://github.com/rashti-alireza/Elliptica

R2 v1 2026-06-28T17:25:36.971Z