A critical re-evaluation of the Thorne–Żytkow object candidate HV 2112

@article{Beasor2018ACR,
  title={A critical re-evaluation of the Thorne–Żytkow object candidate HV 2112},
  author={Emma R. Beasor and Ben Davies and I Cabrera-Ziri and G. M. Hurst},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2018},
  volume={479},
  pages={3101-3105}
}
It has been argued in the literature that the star HV 2112 in the Small Magellanic Cloud (SMC) is the first known example of a Thorne–Żytkow object (TŻO), a red supergiant with a degenerate neutron core. This claim is based on the star having a high luminosity (log (L/L⊙) ≳ 5), an extremely cool effective temperature, and a surface enriched in in lithium, calcium, and various irp-process elements. In this paper we re-examine this evidence, and present new measurements of the stellar properties… Expand

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