No Death Star—For Now

@article{Frogel1998NoDS,
  title={No Death Star—For Now},
  author={J. Frogel and A. Gould},
  journal={The Astrophysical Journal},
  year={1998},
  volume={499}
}
A star passing within ~104 AU of the Sun would trigger a comet shower that would reach the inner solar system about 0.18 Myr later. We calculate an a priori probability of ~0.4% that a star has passed this close to the Sun but that the comet shower has not yet reached the Earth. We search the Hipparcos catalogue for such recent close-encounter candidates and, in agreement with Garcia-Sanchez et al., find none. The new result reported in this Letter is an estimation of the completeness of the… Expand
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