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r-Mode Oscillations and Rocket Effect in Rotating Superfluid Neutron Stars. I. Formalism

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We derive the hydrodynamical equations of r-mode oscillations in neutron stars in the presence of a novel damping mechanism related to particle number changing processes. The change in the number densities of the various species leads to new dissipative terms in the equations that are responsible for the rocket effect. We employ a two-fluid model, with one fluid consisting of the charged components, while the second fluid consists of superfluid neutrons. We consider two different kinds of r-mode oscillations, one associated with comoving displacements, and the second associated with countermoving, out of phase, displacements.

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Authors and Affiliations

  1. Università di Bari and I.N.F.N. Sezione di Bari, Bari, Italy

    G. Colucci

  2. Departament d’Estructura i Constituents de la Matèria and Institut de Ciències del Cosmos (ICCUB), Universitat de Barcelona, Barcelona, Spain

    M. Mannarelli

  3. I.N.F.N., Laboratori Nazionali del Gran Sasso, Assergi (AQ), Italy

    M. Mannarelli

  4. Instituto de Ciencias del Espacio (IEEC/CSIC), Campus Universitat Autònoma de Barcelona, Facultat de Cièncis, Barcelona, Spain

    C. Manuel

Authors
  1. G. Colucci
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  2. M. Mannarelli
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  3. C. Manuel
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Correspondence to G. Colucci.

Additional information

Published in Astrofizika, Vol. 56, No. 1, pp. 101–116 (February 2013).

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Colucci, G., Mannarelli, M. & Manuel, C. r-Mode Oscillations and Rocket Effect in Rotating Superfluid Neutron Stars. I. Formalism. Astrophysics 56, 88–103 (2013). https://doi.org/10.1007/s10511-013-9270-0

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  • DOI: https://doi.org/10.1007/s10511-013-9270-0

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