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

Journal Article · Thu Jul 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.015807· OSTI ID:21389235

Baroni, S ^[1]; Pastore, A; Raimondi, F ^[2]; Barranco, F ^[3]; Broglia, R A ^[4]; Vigezzi, E ^[5]

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1. TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T2A3 (Canada)
2. Department of Physics, P. O. Box 35 (YFL), FI-40014 University of Jyvaeskylae (Finland)
3. Departamento de Fisica Aplicada III, Escuela Superior de Ingenieros, Camino de los Descubrimientos s/n, 41092 Sevilla (Spain)
4. Dipartimento di Fisica, Universita degli Studi di Milano, Via Celoria 16, 20133 Milano (Italy)
5. INFN, Sezione di Milano, Via Celoria 16, 20133 Milano (Italy)

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.

• OSTI ID: 21389235
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 82, Issue 1; Other Information: DOI: 10.1103/PhysRevC.82.015807; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
INTERACTIONS
NEUTRON STARS
NEUTRONS
NUCLEI
RANDOM PHASE APPROXIMATION
SKYRME POTENTIAL
SURFACES
APPROXIMATIONS
BARYONS
CALCULATION METHODS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
NUCLEON-NUCLEON POTENTIAL
NUCLEONS
POTENTIALS
STARS