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dc.contributor.authorLagadec, E.
dc.contributor.authorVerhoelst, T.
dc.contributor.authorVan Winckel, H.
dc.contributor.authorMékarnia, D.
dc.contributor.authorSuárez, O.
dc.contributor.authorBendjoya, P.
dc.contributor.authorChesneau, O.
dc.contributor.authorSuárez, O.
dc.contributor.authorZijlstra, A.A.
dc.contributor.authorSzczerba, R.
dc.contributor.authorBarlow, M.J.
dc.contributor.authorMatsuura, M.
dc.contributor.authorBowey, J.E.
dc.contributor.authorMatsuura, M.
dc.contributor.authorLorenz-Martins, S.
dc.contributor.authorGledhill, T.
dc.date.accessioned2011-10-31T16:01:10Z
dc.date.available2011-10-31T16:01:10Z
dc.date.issued2011-10-01
dc.identifier.citationLagadec , E , Verhoelst , T , Van Winckel , H , Mékarnia , D , Suárez , O , Bendjoya , P , Chesneau , O , Suárez , O , Zijlstra , A A , Szczerba , R , Barlow , M J , Matsuura , M , Bowey , J E , Matsuura , M , Lorenz-Martins , S & Gledhill , T 2011 , ' A mid-infrared imaging catalogue of post-asymptotic giant branch stars ' , Monthly Notices of the Royal Astronomical Society , vol. 417 , no. 1 , pp. 32-92 . https://doi.org/10.1111/j.1365-2966.2011.18557.x
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 435329
dc.identifier.otherPURE UUID: 9766f5a5-9643-400d-bb42-8b53bd7d242f
dc.identifier.otherScopus: 80053560139
dc.identifier.otherORCID: /0000-0002-2859-4600/work/30779757
dc.identifier.urihttp://hdl.handle.net/2299/6844
dc.descriptionThe definitive version can be found at: http://onlinelibrary.wiley.com/ Copyright Royal Astronomical Society
dc.description.abstractPost-asymptotic giant branch (post-AGB) stars are key objects for the study of the dramatic morphological changes of low- to intermediate-mass stars on their evolution from the AGB towards the planetary nebula stage. There is growing evidence that binary interaction processes may very well have a determining role in the shaping process of many objects, but so far direct evidence is still weak. We aim at a systematic study of the dust distribution around a large sample of post-AGB stars as a probe of the symmetry breaking in the nebulae around these systems. We used imaging in the mid-infrared to study the inner part of these evolved stars to probe direct emission from dusty structures in the core of post-AGB stars in order to better understand their shaping mechanisms. We imaged a sample of 93 evolved stars and nebulae in the mid-infrared using VLT spectrometer and imager for the mid-infrared (VISIR)/VLT, T-Recs/Gemini-South and Michelle/Gemini-North. We found that all the proto-planetary nebulae we resolved show a clear departure from spherical symmetry. 59 out of the 93 observed targets appear to be non-resolved. The resolved targets can be divided into two categories. (i) The nebulae with a dense central core, that are either bipolar and multipolar and (ii) the nebulae with no central core, with an elliptical morphology. The dense central torus observed likely hosts binary systems which triggered fast outflows that shaped the nebulae.en
dc.format.extent61
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rights/dk/atira/pure/core/openaccesspermission/embargoed
dc.subjectcircumstellar matter
dc.subjectinfrared: stars
dc.titleA mid-infrared imaging catalogue of post-asymptotic giant branch starsen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.date.embargoedUntil2012-04-01
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=80053560139&partnerID=8YFLogxK
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Accepted Version
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1365-2966.2011.18557.x
rioxxterms.licenseref.startdate2012-04-01+01:00
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.date.embargo2012-04-01+01:00
herts.rights.accesstypeopenAccess


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