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dc.contributor.authorFarihi, J.
dc.contributor.authorWyatt, M. C.
dc.contributor.authorGreaves, J. S.
dc.contributor.authorBonsor, A.
dc.contributor.authorSibthorpe, B.
dc.contributor.authorPanic, O.
dc.identifier.citationFarihi , J , Wyatt , M C , Greaves , J S , Bonsor , A , Sibthorpe , B & Panic , O 2014 , ' ALMA and Herschel observations of the prototype dusty and polluted white dwarf G29-38 ' , Monthly Notices of the Royal Astronomical Society , vol. 444 , no. 2 , pp. 1821-1828 .
dc.identifier.otherPURE: 157833443
dc.identifier.otherPURE UUID: 112d0d38-a76d-4ae9-90c3-84b1fce283fe
dc.identifier.otherWOS: 000342926300062
dc.identifier.otherScopus: 84928319340
dc.identifier.otherWOS: 000342926300062
dc.descriptionJF gratefully acknowledges the support of the STFC via an Ernest Rutherford Fellowship. AB acknowledges the support of the ANR-2010 BLAN-0505-01 (EXOZODI). MCW and OP are grateful for the support of the European Union through ERC grant number 279973.en
dc.description.abstractALMA Cycle 0 and Herschel PACS observations are reported for the prototype, nearest, and brightest example of a dusty and polluted white dwarf, G29-38. These long-wavelength programmes attempted to detect an outlying, parent population of bodies at 1–100 au, from which originates the disrupted planetesimal debris that is observed within 0.01 au and which exhibits LIR/L* = 0.039. No associated emission sources were detected in any of the data down to LIR/L* ∼ 10−4, generally ruling out cold dust masses greater than 1024–1025 g for reasonable grain sizes and properties in orbital regions corresponding to evolved versions of both asteroid and Kuiper belt analogues. Overall, these null detections are consistent with models of long-term collisional evolution in planetesimal discs, and the source regions for the disrupted parent bodies at stars like G29-38 may only be salient in exceptional circumstances, such as a recent instability. A larger sample of polluted white dwarfs, targeted with the full ALMA array, has the potential to unambiguously identify the parent source(s) of their planetary debris.
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.rightsThis article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2014 The Authors, Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.en
dc.subjectStars: abundancesen
dc.subjectCircumstellar matteren
dc.subjectStars: individual: (G29-38)en
dc.subjectPlanetary systemsen
dc.subjectWhite dwarfsen
dc.subjectExtrasolar minor planetsen
dc.subjectPoynting-Robertson dragen
dc.subjectGaseous debris discen
dc.subjectFinal mass relationen
dc.subjectCollisional evolutionen
dc.subjectRocky planetesimalsen
dc.subjectBrown dwarfen
dc.subjectDZ starsen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.titleALMA and Herschel observations of the prototype dusty and polluted white dwarf G29-38en
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.description.statusPeer revieweden

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