Zero Sound in Neutron Stars with Dense Quark Matter under Strong Magnetic Fields

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Abstract

We study a neutron star with a quark matter core under extremely strong magnetic fields. We investigate the possibility of an Urca process as a mechanism for the cooling of such a star. We found that apart from very particular cases, the Urca process cannot occur. We also study the stability of zero sound modes under the same conditions. We derive limits for the coupling constant of an effective theory, in order the zero sound to be undamped. We show that zero sound modes can help kinematically to facilitate a cooling process.
Original languageEnglish
JournalPhysical Review D
Volume79
Issue number12
Pages (from-to)123008
Number of pages9
ISSN2470-0010
DOIs
Publication statusPublished - 2009

Keywords

  • astro-ph.SR

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