Microscopic calculation of the equation of state of nuclear matter and neutron star structure

Autor:	Gandolfi, S., Illarionov, A. Yu, Fantoni, S., Miller, J. C., Pederiva, F., Schmidt, K. E.
Rok vydání:	2009
Předmět:	Nuclear Theory Astrophysics - Solar and Stellar Astrophysics
Zdroj:	Mon.Not.Roy.Astron.Soc. 404:L35-L39,2010
Druh dokumentu:	Working Paper
DOI:	10.1111/j.1745-3933.2010.00829.x
Popis:	We present results for neutron star models constructed with a new equation of state for nuclear matter at zero temperature. The ground state is computed using the Auxiliary Field Diffusion Monte Carlo (AFDMC) technique, with nucleons interacting via a semi-phenomenological Hamiltonian including a realistic two-body interaction. The effect of many-body forces is included by means of additional density-dependent terms in the Hamiltonian. In this letter we compare the properties of the resulting neutron-star models with those obtained using other nuclear Hamiltonians, focusing on the relations between mass and radius, and between the gravitational mass and the baryon number. Comment: modified version with a slightly different Hamiltonian and parametrization of the EOS
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0909.3487 Zobrazit plný text záznamu View this record from Arxiv