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dc.contributor.authorDobbie, P.D.-
dc.contributor.authorBurleigh, Matthew R.-
dc.contributor.authorLevan, Andrew J.-
dc.contributor.authorBarstow, Martin A.-
dc.contributor.authorNapiwotzki, R.-
dc.contributor.authorHubeny, I.-
dc.identifier.citationAstronomy and Astrophysics, 2005, 439, pp.1159-1163en
dc.descriptionThe definitive version of this paper is available from
dc.description.abstractWe present a near-IR spectroscopic analysis of the intriguing DO white dwarf RE J0503-285. The IR spectrum fails to reveal evidence of the presence of a spatially unresolved, cool, late-type companion. Hence we have placed an approximate limit on the spectral-type and mass of a putative companion (later than M8, M < 0.085 M¤). This result rules out ongoing interaction between the white dwarf and a close companion with M ≥ 0.085 M¤ as responsible for the discrepancies between the observed photospheric abundances and model predictions. As the possibility remains that there is a cooler companion lying beyond the detection threshold of this study we use our modelling to estimate the improvement in sensitivity offered by a Spitzer observation.en
dc.format.extent174256 bytes-
dc.publisherEDP Sciencesen
dc.titleA near-IR spectrum of the DO white dwarf RE J0503-285en
dc.relation.deptX-ray and Observational Astronomy-
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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