Evolved solar systems in Praesepe
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Author
Casewell, Sarah L.
Burleigh, Matt R.
Dobbie, Paul D.
Napiwotzki, Ralf
Attention
2299/7085
Abstract
We have obtained near-IR photometry for the 11 Praesepe white dwarfs, to search for an excess indicative of a dusty debris disk. All the white dwarfs are in the DAZ temperature regime, however we find no indications of a disk around any white dwarf. We have, however determined that the radial velocity variable white dwarf WD0837+185 could have an unresolved T8 dwarf companion that would not be seen as a near-IR excess.