Show simple item record

Files in this item

Thumbnail

Item metadata

dc.contributor.authorLawler, S. M.
dc.contributor.authorDi Francesco, J.
dc.contributor.authorKennedy, G. M.
dc.contributor.authorSibthorpe, B.
dc.contributor.authorBooth, M.
dc.contributor.authorVandenbussche, B.
dc.contributor.authorMatthews, B. C.
dc.contributor.authorHolland, W. S.
dc.contributor.authorGreaves, J.
dc.contributor.authorWilner, D. J.
dc.contributor.authorTuomi, M.
dc.contributor.authorBlommaert, J. A. D. L.
dc.contributor.authorde Vries, B. L.
dc.contributor.authorDominik, C.
dc.contributor.authorFridlund, M.
dc.contributor.authorGear, W.
dc.contributor.authorHeras, A. M.
dc.contributor.authorIvison, R.
dc.contributor.authorOlofsson, G.
dc.date.accessioned2014-11-25T16:01:03Z
dc.date.available2014-11-25T16:01:03Z
dc.date.issued2014-11-01
dc.identifier.citationLawler , S M , Di Francesco , J , Kennedy , G M , Sibthorpe , B , Booth , M , Vandenbussche , B , Matthews , B C , Holland , W S , Greaves , J , Wilner , D J , Tuomi , M , Blommaert , J A D L , de Vries , B L , Dominik , C , Fridlund , M , Gear , W , Heras , A M , Ivison , R & Olofsson , G 2014 , ' The debris disc of solar analogue tau Ceti : Herschel observations and dynamical simulations of the proposed multiplanet system ' , Monthly Notices of the Royal Astronomical Society , vol. 444 , no. 3 , pp. 2665-2675 . https://doi.org/10.1093/mnras/stu1641en
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 157934038
dc.identifier.otherPURE UUID: 61b45d61-1a3c-414f-adfc-83c9d672c20e
dc.identifier.otherWOS: 000343399600052
dc.identifier.otherScopus: 84929441192
dc.identifier.otherWOS: 000343399600052
dc.identifier.urihttp://hdl.handle.net/10023/5835
dc.descriptionSML and BCM acknowledge an NSERC Discovery Accelerator Supplement which funded this work. This work was also supported by the European Union through ERC grant number 279973 (GMK). MB acknowledges support from a FONDECYT Postdoctral Fellowship, project no. 3140479.en
dc.description.abstracttau Ceti is a nearby, mature G-type star very similar to our Sun, with a massive Kuiper Belt analogue and possible multiplanet system that has been compared to our Solar system. We present Herschel Space Observatory images of the debris disc, finding the disc is resolved at 70 mu m and 160 mu m, and marginally resolved at 250 mu m. The Herschel images and infrared photometry from the literature are best modelled using a wide dust annulus with an inner edge between 1 and 10 au and an outer edge at similar to 55 au, inclined from face-on by 35 degrees +/- 10 degrees, and with no significant azimuthal structure. We model the proposed tightly packed planetary system of five super-Earths and find that the innermost dynamically stable disc orbits are consistent with the inner edge found by the observations. The photometric modelling, however, cannot rule out a disc inner edge as close to the star as 1 au, though larger distances produce a better fit to the data. Dynamical modelling shows that the five-planet system is stable with the addition of a Neptune or smaller mass planet on an orbit outside 5 au, where the radial velocity data analysis would not have detected a planet of this mass.
dc.format.extent11
dc.language.isoeng
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.subjectplanets and satellites: dynamical evolution and stabilityen
dc.subjectplanet-discen
dc.subjectinteractionsen
dc.subjectcircumstellar matteren
dc.subjectstars: individual: tau Cetien
dc.subjectMain-sequence starsen
dc.subjectLow-mass planetsen
dc.subjectAll-sky surveyen
dc.subjectBeta-pictorisen
dc.subjectHR 8799en
dc.subjectSpire instrumenten
dc.subjectDust contenten
dc.subjectAlignmenten
dc.subjectEmissionen
dc.subjectRotationen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleThe debris disc of solar analogue tau Ceti : Herschel observations and dynamical simulations of the proposed multiplanet systemen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1093/mnras/stu1641
dc.description.statusPeer revieweden


This item appears in the following Collection(s)

Show simple item record