Cool Customers in the Stellar Graveyard III: Limits to Substellar Objects around nearby White Dwarfs using CFHT

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dc.creatorDebes, J. H.
dc.creatorGe, J.
dc.creatorFtaclas, C.
dc.date2005-09-28
dc.date2005-10-11
dc.date.accessioned2026-07-07T11:24:48Z
dc.date.available2026-07-07T11:24:48Z
dc.descriptionResults from a groundbased high contrast imaging survey of thirteen nearby white dwarfs for substellar objects is presented. We place strict upper limits on the type of substellar objects present, ruling out the presence of anything larger than $\sim$14 M$_{Jup}$ for eight of the white dwarfs at separations $>$19 AU and corresponding to primordial separations of $\sim$3-6~AU assuming adiabatic mass loss without tidal interactions. With these results we place the first upper limit on the number of intermediate mass stars with brown dwarfs at separations $>$ 13 AU. We combine these results with previous work to place upper limits on the number of massive Jovian ($>$ 10 M$_{Jup}$) planets in orbit around white dwarfs whose progenitors spanned a mass range of 1-7 M$_{\odot}$.
dc.description20 pages, 6 figures, Accepted to AJ, minor edits
dc.identifierhttps://arxiv.org/abs/astro-ph/0509854
dc.identifierhttp://arxiv.org/abs/astro-ph/0509854
dc.identifierAstron.J.131:640-647,2006
dc.identifierdoi:10.1086/498740
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195317
dc.subjectAstrophysics
dc.titleCool Customers in the Stellar Graveyard III: Limits to Substellar Objects around nearby White Dwarfs using CFHT
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