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Semaine de l'Astrophysique Française, Journées de la SF2A 2011, Paris : France (2011)
Collective excitations in the neutron star inner crust
Luc Di Gallo1, M. Oertel1, M. Urban2

We study the spectrum of collective excitations in the inhomogeneous phases in the neutron star inner crust within a superfluid hydrodynamics approach. Our aim is to describe the whole range of wavelengths, from the long-wavelength limit which can be described by macroscopic approaches and which is crucial for the low-energy part of the spectrum, to wavelengths of the order of the dimensions of the Wigner-Seitz cells, corresponding to the modes usually described in microscopic calculations. As an application, we will discuss the contribution of these collective modes to the specific heat in comparison with other known contributions.
1 :  LUTH - Laboratoire Univers et Théories
2 :  IPNO - Institut de Physique Nucléaire d'Orsay
Physique/Astrophysique/Phénomènes cosmiques de haute energie

Planète et Univers/Astrophysique/Phénomènes cosmiques de haute energie

Physique/Physique Nucléaire Théorique
collective modes – neutron star crust – pasta phases – specific heat