THE SOLAR NEIGHBORHOOD. XXI. PARALLAX RESULTS FROM THE CTIOPI 0.9 m PROGRAM: 20 NEW MEMBERS OF THE 25 PARSEC WHITE DWARF SAMPLE

@article{Subasavage2009THESN,
  title={THE SOLAR NEIGHBORHOOD. XXI. PARALLAX RESULTS FROM THE CTIOPI 0.9 m PROGRAM: 20 NEW MEMBERS OF THE 25 PARSEC WHITE DWARF SAMPLE},
  author={John P. Subasavage and Wei Chun Jao and Todd J. Henry and Pierre Bergeron and P. Dufour and Philip Anthony Ianna and Edgardo Costa and Rene A. Mendez and Georgia State University and University of Montreal and University of Arizona and University of Virginia and University of Chile},
  journal={The Astronomical Journal},
  year={2009},
  volume={137},
  pages={4547-4560}
}
We present accurate trigonometric parallaxes for 20 new members of the 25 pc white dwarf (WD) sample as part of the Discovery and Evalution of Nearby Stellar Embers (DENSE) project.7 http://www.DenseProject.com Previously, there were a total of 112 WD systems with trigonometric parallaxes placing them within 25 pc and of these, 99 have trigonometric parallaxes known to better than 10%. Thus, the 20 new members presented in this work represent a 20% increase in the number of WDs accurately known… 
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