Finite-size effects and collective vibrations in the inner crust of neutron stars

TY - JOUR

T1 - Finite-size effects and collective vibrations in the inner crust of neutron stars

AU - Baroni, S.

AU - Pastore, A.

AU - Raimondi, F.

AU - Barranco, F.

AU - Broglia, Ricardo Americo

AU - Vigezzi, E.

PY - 2010/7/19

Y1 - 2010/7/19

N2 - We study the linear response of the inner crust of neutron stars within the random phase approximation, employing a Skyrme-type interaction as effective interaction. We adopt the Wigner-Seitz approximation, and consider a single unit cell of the Coulomb lattice that constitutes the inner crust, with a nucleus at its center, surrounded by a sea of free neutrons. With the use of an appropriate operator, it is possible to analyze in detail the properties of the vibrations of the surface of the nucleus and their interaction with the modes of the sea of free neutrons, and to investigate the roles of shell effects and of resonant states.

AB - We study the linear response of the inner crust of neutron stars within the random phase approximation, employing a Skyrme-type interaction as effective interaction. We adopt the Wigner-Seitz approximation, and consider a single unit cell of the Coulomb lattice that constitutes the inner crust, with a nucleus at its center, surrounded by a sea of free neutrons. With the use of an appropriate operator, it is possible to analyze in detail the properties of the vibrations of the surface of the nucleus and their interaction with the modes of the sea of free neutrons, and to investigate the roles of shell effects and of resonant states.

U2 - 10.1103/physrevc.82.015807

DO - 10.1103/physrevc.82.015807

M3 - Journal article

SN - 2469-9985

VL - 82

SP - 015807

JO - Physical Review C

JF - Physical Review C

IS - 1

ER -