A Search for Laser Emission with Megawatt Thresholds from 5600 FGKM Stars

@article{Tellis2017ASF,
  title={A Search for Laser Emission with Megawatt Thresholds from 5600 FGKM Stars},
  author={Nate K. Tellis and Geoffrey W. Marcy},
  journal={The Astronomical Journal},
  year={2017},
  volume={153}
}
We searched high-resolution spectra of 5600 nearby stars for emission lines that are both inconsistent with a natural origin and unresolved spatially, as would be expected from extraterrestrial optical lasers. The spectra were obtained with the Keck 10 m telescope, including light coming from within 0.5 arcsec of the star, corresponding typically to within a few to tens of astronomical units of the star, and covering nearly the entire visible wavelength range from 3640 to 7890 Å. We establish… 

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