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dc.contributor.authorEgea, E. González
dc.contributor.authorKoester, D.
dc.contributor.authorRogers, L. K.
dc.contributor.authorMarocco, F.
dc.contributor.authorCooper, W. J.
dc.contributor.authorBeamin, J. C.
dc.contributor.authorBurningham, B.
dc.contributor.authorDay-Jones, A.
dc.contributor.authorForbrich, J.
dc.contributor.authorPinfield, D. J.
dc.date.accessioned2021-01-20T11:00:04Z
dc.date.available2021-01-20T11:00:04Z
dc.date.issued2020-12-12
dc.identifier.citationEgea , E G , Koester , D , Rogers , L K , Marocco , F , Cooper , W J , Beamin , J C , Burningham , B , Day-Jones , A , Forbrich , J & Pinfield , D J 2020 , ' Serendipitous discovery of a dusty disc around WDJ181417.84-735459.83 ' , Monthly Notices of the Royal Astronomical Society . https://doi.org/10.1093/mnras/staa3836
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 24421317
dc.identifier.otherPURE UUID: 2a80c4b7-afa6-4d15-b477-aa0bcfa6ac15
dc.identifier.otherArXiv: http://arxiv.org/abs/2012.05731v2
dc.identifier.otherORCID: /0000-0003-4600-5627/work/87353954
dc.identifier.otherORCID: /0000-0001-8694-4966/work/87354085
dc.identifier.otherScopus: 85100298033
dc.identifier.urihttp://hdl.handle.net/2299/23698
dc.descriptionThis is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record is available online at: https://doi.org/10.1093/mnras/staa3836
dc.description.abstractSpectroscopic observations of white dwarfs reveal that many of them are polluted by exoplanetary material, whose bulk composition can be uniquely probed this way. We present a spectroscopic and photometric analysis of the DA white dwarf WDJ181417.84$-$735459.83, an object originally identified to have a strong infrared excess in the 2MASS and WISE catalogues that we confirmed to be intrinsic to the white dwarf, and likely corresponding to the emission of a dusty disc around the star. The finding of Ca, Fe and Mg absorption lines in two X-SHOOTER spectra of the white dwarf, taken 8 years apart, is further evidence of accretion from a dusty disc. We do not report variability in the absorption lines between these two spectra. Fitting a blackbody model to the infrared excess gives a temperature of 910$\pm50$ K. We have estimated a total accretion flux from the spectroscopic metal lines of $|\dot{\rm M}| = 1.784 \times 10^{9}\, $g s$^{-1}$.en
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rightsOpen
dc.subjectastro-ph.SR
dc.subjectastro-ph.EP
dc.titleSerendipitous discovery of a dusty disc around WDJ181417.84-735459.83en
dc.contributor.institutionSchool of Physics, Engineering & Computer Science
dc.contributor.institutionPhysics, Astronomy and Mathematics VLs
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre for Astrophysics Research
dc.contributor.institutionDepartment of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Engineering & Computer Science
dc.description.versiontypeFinal Accepted Version
dcterms.dateAccepted2020-12-12
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1093/mnras/staa3836
rioxxterms.licenseref.uriOther
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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