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P48. Avril Day-Jones Universidad de Chile. Review of brown dwarfs with known age or ‘ age benchmarks ’. Present our searches of 2MASS, SuperCOSMOS, SDSS & UKIDSS for brown dwarf + white dwarf binaries. Announcement of the discovery of the first T dwarf companion to a white dwarf.
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P48 Avril Day-JonesUniversidad de Chile • Review of brown dwarfs with known age or ‘age benchmarks’. • Present our searches of 2MASS, SuperCOSMOS, SDSS & UKIDSS for brown dwarf + white dwarf binaries. • Announcement of the discovery of the first T dwarf companion to a white dwarf. • -See talk by David Pinfield (Friday session 5.1) Collaborators: David Pinfield (Univ of Herts), Maria-Teresa Ruiz (Univ de. Chile), Ralf Napiwotzki (Univ of Herts), Ben Burningam (Univ of Herts), James Jenkins (Univ de Chile), Mari-Cruz galvez-Ortiz (Univ of Herts), Zengua Zhang (Univ of Herts), James Clarke (Univ of Herts), Jose Gallardo (Univ de Chile)