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On the stability of strange dwarf hybrid stars

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arxiv 1705.09880 v1 pith:XDTH7CUG submitted 2017-05-28 astro-ph.HE nucl-th

Mark G. Alford , Steven P. Harris , Pratik S. Sachdeva This is my paper · ORCID
classification astro-ph.HEnucl-th
keywords starsstabilitystrangeconventionalcriteriadensitydiscontinuitydwarfs
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We investigate the stability of stars with a density discontinuity between a high-density core and a very low density mantle. Previous work on "strange dwarfs" suggested that such a discontinuity could stabilize stars that would have been classified as unstable by the conventional criteria based on extrema in the mass-radius relation. We investigate the stability of such stars by numerically solving the Sturm-Liouville equations for the lowest-energy modes of the star. We find that the conventional criteria are correct, and strange dwarfs are not stable.

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