Discovery of Beryllium in White Dwarfs Polluted by Planetesimal Accretion

@article{Klein2021DiscoveryOB,
  title={Discovery of Beryllium in White Dwarfs Polluted by Planetesimal Accretion},
  author={Beth L. Klein and Alexandra E. Doyle and Ben Zuckerman and P. Dufour and Simon Blouin and Carl Melis and Alycia J. Weinberger and Edward D. Young},
  journal={The Astrophysical Journal},
  year={2021},
  volume={914}
}
The element beryllium is detected for the first time in white dwarf stars. This discovery in the spectra of two helium-atmosphere white dwarfs was made possible only because of the remarkable overabundance of Be relative to all other elements, heavier than He, observed in these stars. The measured Be abundances, relative to chondritic, are by far the largest ever seen in any astronomical object. We anticipate that the Be in these accreted planetary bodies was produced by spallation of one or… 

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