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Discovery of the first very wide WD-LD binary system?

Avril C. Day-Jones·David J. Pinfield·Hugh R. A. Jones·Tim R. Kendall·Ralf Napiwotzki·James S. Jenkins
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Abstract

We report on our large scale search of 2MASS and SuperCOSMOS in the southern hemisphere for very widely separated white dwarf / L-dwarf binary systems and present our findings, including 8 widely separated candidate systems, and proper motion analysis confirming one of these as a widely separated white dwarf/ L-dwarf common proper motion binary candidate.

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Avril C. Day-Jones, David J. Pinfield, Hugh R. A. Jones, Tim R. Kendall, Ralf Napiwotzki, James S. Jenkins. 2006-10-11. Discovery of the first very wide WD-LD binary system?. https://arxiv.org/abs/astro-ph/0610318

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