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Nuclear Theory·nucl-th

Monday·December 8, 2014

10 papers—8 primary·2 cross-listed

All10Primary8Cross-lists2
  1. 09

    [Submitted on 4 Dec 2014] (cross-list from gr-qc)

    Stability of thin-shell interfaces inside compact stars

    Jonas P. Pereira🇮🇹 · Jaziel G. Coelho🇮🇹 · Jorge A. Rueda🇮🇹

    We use the thin-shell Darmois-Israel formalism to model and assess the stability of the interfaces separating phases, e.g. the core and the crust, within compact stars. We exemplify the relevance and non-triviality of this treatment in the simplest case of an incompressible star, in constant pressure phase transitions, and in the case of strange quark stars with crust.

    Comments:
    matches version published in Physical Review D
    Subjects:
    General Relativity and Quantum Cosmology (gr-qc); Solar and Stellar Astrophysics (astro-ph.SR); Nuclear Theory (nucl-th)
    arXiv:
    1412.1848 [pdf]
    PRD(2014)·21 citations
  2. 10

    [Submitted on 5 Dec 2014] (cross-list from hep-ph)

    Exact solutions of the (0+1)-dimensional kinetic equation in the relaxation time approximation

    Ewa Maksymiuk🇵🇱

    We present exact solutions of the (0+1)-dimensional kinetic equation for a massive gas in the relaxation time approximation. At first, we analyse the case of classical statistics and argue that the traditional second-order hydrodynamics misses the shear-bulk coupling. In the next step, we include Bose-Einstein and Fermi-Dirac statistics in the calculations and show that they are important for description of the effects connected with bulk viscosity.

    Comments:
    4 pages, 6 pictures, Talk presented at the Hot Quarks 2014, Las Negras, Spain. Slightly changed results for the bulk viscous pressure, conclusions unchanged
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    1412.2063 [pdf]
    J.Phys.Conf.Ser.(2015)·0 citations

Affiliations

first authorsco-authorsvia INSPIRE