Discovery of New Ultracool White Dwarfs in the Sloan Digital Sky Survey

@article{Gates2004DiscoveryON,
  title={Discovery of New Ultracool White Dwarfs in the Sloan Digital Sky Survey},
  author={E. Gates and G. Gyuk and H. Harris and M. SubbaRao and Scott Anderson and S. Kleinman and J. Liebert and H. Brewington and J. Brinkmann and M. Harvanek and J. Krzesi'nski and D. Lamb and D. Long and E. Neilsen and Jr and P. Newman and A. Nitta and S. Snedden},
  journal={The Astrophysical Journal},
  year={2004},
  volume={612}
}
  • E. Gates, G. Gyuk, +15 authors S. Snedden
  • Published 2004
  • Physics
  • The Astrophysical Journal
  • We report the discovery of five new white dwarfs in the Sloan Digital Sky Survey. Four are ultracool, exhibiting strong collision-induced absorption (CIA) from molecular hydrogen and are similar in color to the three previously known coolest white dwarfs, SDSS J1337+00, LHS 3250, and LHS 1402. The fifth star shows milder CIA flux suppression and has a color and spectral shape similar to WD 0346+246. All five new white dwarfs are faint (g > 18.9) and have significant proper motions. One of the… CONTINUE READING
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