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dc.contributor.authorXu, S.
dc.contributor.authorRappaport, S.
dc.contributor.authorvan Lieshout, R.
dc.contributor.authorVanderburg, A.
dc.contributor.authorGary, B.
dc.contributor.authorHallakoun, N.
dc.contributor.authorIvanov, V.~D.
dc.contributor.authorWyatt, M.~C.
dc.contributor.authorDeVore, J.
dc.contributor.authorBayliss, D.
dc.contributor.authorBento, J.
dc.contributor.authorBieryla, A.
dc.contributor.authorCameron, A.
dc.contributor.authorCann, J.~M.
dc.contributor.authorCroll, B.
dc.contributor.authorCollins, K.~A.
dc.contributor.authorDalba, P.~A.
dc.contributor.authorDebes, J.
dc.contributor.authorDoyle, D.
dc.contributor.authorDufour, P.
dc.contributor.authorEly, J.
dc.contributor.authorEspinoza, N.
dc.contributor.authorJoner, M.~D.
dc.contributor.authorJura, M.
dc.contributor.authorKaye, T.
dc.contributor.authorMcClain, J.~L.
dc.contributor.authorMuirhead, P.
dc.contributor.authorPalle, E.
dc.contributor.authorPanka, P.~A.
dc.contributor.authorProvencal, J.
dc.contributor.authorRandall, S.
dc.contributor.authorRodriguez, J.~E.
dc.contributor.authorScarborough, J.
dc.contributor.authorSefako, R.
dc.contributor.authorShporer, A.
dc.contributor.authorStrickland, W.
dc.contributor.authorZhou, G.
dc.contributor.authorZuckerman, B.
dc.date.accessioned2017-12-06T13:30:12Z
dc.date.available2017-12-06T13:30:12Z
dc.date.issued2018-03
dc.identifier.citationXu , S , Rappaport , S , van Lieshout , R , Vanderburg , A , Gary , B , Hallakoun , N , Ivanov , V D , Wyatt , M C , DeVore , J , Bayliss , D , Bento , J , Bieryla , A , Cameron , A , Cann , J M , Croll , B , Collins , K A , Dalba , P A , Debes , J , Doyle , D , Dufour , P , Ely , J , Espinoza , N , Joner , M D , Jura , M , Kaye , T , McClain , J L , Muirhead , P , Palle , E , Panka , P A , Provencal , J , Randall , S , Rodriguez , J E , Scarborough , J , Sefako , R , Shporer , A , Strickland , W , Zhou , G & Zuckerman , B 2018 , ' A dearth of small particles in the transiting material around the white dwarf WD 1145+017 ' , Monthly Notices of the Royal Astronomical Society , vol. 474 , no. 4 , pp. 4795-4809 . https://doi.org/10.1093/mnras/stx3023en
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 251697887
dc.identifier.otherPURE UUID: 916a3c39-75fd-4c6e-991f-dd24bbe53a29
dc.identifier.otherBibtex: urn:e9d99436d114762d32dd9bea25d8a666
dc.identifier.otherScopus: 85052209358
dc.identifier.otherORCID: /0000-0002-8863-7828/work/58531499
dc.identifier.otherWOS: 000424977800042
dc.identifier.urihttps://hdl.handle.net/10023/12272
dc.descriptionFunding: UK STFC grant ST/M001296/1 (AC).en
dc.description.abstractWhite dwarf WD 1145+017 is orbited by several clouds of dust, possibly emanating from actively disintegrating bodies. These dust clouds reveal themselves through deep, broad, and evolving transits in the star’s light curve. Here, we report two epochs of multi-wavelength photometric observations of WD 1145+017, including several filters in the optical, Ks and 4.5 μm bands in 2016 and 2017. The observed transit depths are different at these wavelengths. However, after correcting for excess dust emission at Ks and 4.5 μm, we find the transit depths for the white dwarf itself are the same at all wavelengths, at least to within the observational uncertainties of ∼5%-10%. From this surprising result, and under the assumption of low optical depth dust clouds, we conclude that there is a deficit of small particles (with radii s ≲ 1.5 μm) in the transiting material. We propose a model wherein only large particles can survive the high equilibrium temperature environment corresponding to 4.5 hr orbital periods around WD 1145+017, while small particles sublimate rapidly. In addition, we evaluate dust models that are permitted by our measurements of infrared emission.
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.rights© 2017, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1093/mnras/stx3023en
dc.subjectEclipsesen
dc.subjectMinor planets, asteroids: generalen
dc.subjectStars: individual: WD 1145+017en
dc.subjectWhite dwarfsen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectNDASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleA dearth of small particles in the transiting material around the white dwarf WD 1145+017en
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. St Andrews Centre for Exoplanet Scienceen
dc.identifier.doihttps://doi.org/10.1093/mnras/stx3023
dc.description.statusPeer revieweden
dc.identifier.grantnumberST/M001296/1en


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