WD 1202-024: the shortest-period pre-cataclysmic variable

@article{Rappaport2017WD1T,
  title={WD 1202-024: the shortest-period pre-cataclysmic variable},
  author={S. Rappaport and A. Vanderburg and L. Nelson and B. Gary and T. G. Kaye and B. Kalomeni and S. Howell and J. Thorstensen and F.-R. Lachapelle and M. Lundy and J. St-Antoine},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2017},
  volume={471},
  pages={948-961}
}
  • S. Rappaport, A. Vanderburg, +8 authors J. St-Antoine
  • Published 2017
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • Among the 28,000 targeted stars in K2 Field 10 is the white dwarf WD 1202-024 (EPIC 201283111), first noted in the SDSS survey (SDSS 120515.80-024222.7). We have found that this hot white dwarf (Teff = 22,640 K) is in a very close orbit (P = 71 min) with a star of near brown-dwarf mass ~ 0.061 Msun. This period is very close to, or somewhat below, the minimum orbital period of cataclysmic variables with H-rich donor stars. However, we find no evidence that this binary is currently, or ever was… CONTINUE READING

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