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dc.contributor.authorMarocco, F.
dc.contributor.authorSmart, R.L.
dc.contributor.authorJones, H.R.A.
dc.contributor.authorBurningham, B.
dc.contributor.authorLattanzi, M.G.
dc.contributor.authorLeggett, S.K.
dc.contributor.authorLucas, P.W.
dc.contributor.authorTinney, C.G.
dc.contributor.authorAdamson, A.
dc.contributor.authorEvans, D. W.
dc.contributor.authorLodieu, N.
dc.contributor.authorMurray, D.N.
dc.contributor.authorPinfield, D.J.
dc.contributor.authorTamura, M.
dc.date.accessioned2010-12-21T14:05:06Z
dc.date.available2010-12-21T14:05:06Z
dc.date.issued2010
dc.identifier.citationMarocco , F , Smart , R L , Jones , H R A , Burningham , B , Lattanzi , M G , Leggett , S K , Lucas , P W , Tinney , C G , Adamson , A , Evans , D W , Lodieu , N , Murray , D N , Pinfield , D J & Tamura , M 2010 , ' Parallaxes and physical properties of 11 mid-to-late T dwarfs ' , Astronomy and Astrophysics , vol. 524 , A38 . https://doi.org/10.1051/0004-6361/201015394
dc.identifier.issn0004-6361
dc.identifier.otherPURE: 158719
dc.identifier.otherPURE UUID: e705d2b5-1737-4ea1-bb7e-26ddec35237d
dc.identifier.otherdspace: 2299/5087
dc.identifier.otherWOS: 000284625300086
dc.identifier.otherScopus: 78651312928
dc.identifier.otherORCID: /0000-0002-8872-4462/work/62748829
dc.identifier.otherORCID: /0000-0003-4600-5627/work/64327307
dc.identifier.urihttp://hdl.handle.net/2299/5087
dc.descriptionOriginal article can be found at: http://www.aanda.org/ Copyright The European Southern Observatory (ESO
dc.description.abstractAims. We present parallaxes of 11 mid-to-late T dwarfs observed in the UKIRT Infrared Deep Sky Survey. We use these results to test the reliability of model predictions in magnitude–color space, determine a magnitude-spectral type calibration, and, estimate a bolometric luminosity and effective temperature range for the targets. Methods. We used observations from the UKIRT WFCAM instrument pipeline processed at the Cambridge Astronomical Survey Unit. The parallaxes and proper motions of the sample were calculated using standard procedures. The bolometric luminosity was estimated using near- and mid-infrared observations with two different methods. The corresponding effective temperature ranges were found adopting a large age-radius range. Results. We show the models are unable to predict the colors of the latest T dwarfs indicating the incompleteness of model opacities for NH3, CH4 and H2 as the temperature declines. We report the effective temperature ranges obtained.en
dc.format.extent11
dc.language.isoeng
dc.relation.ispartofAstronomy and Astrophysics
dc.subjectstars: low-mass
dc.subjectbrown dwarfs
dc.subjectstars: fundamental parameters
dc.subjectstars: distances
dc.subjectastrometry
dc.subjectEXTRASOLAR GIANT PLANETS
dc.subjectLARGE-AREA SURVEY
dc.subjectCOOL BROWN DWARF
dc.subjectSPECTRAL CLASSIFICATION
dc.subjectCHEMICAL-EQUILIBRIUM
dc.subjectL/T TRANSITION
dc.subjectDATA RELEASE
dc.subjectUKIDSS
dc.subjectPHOTOMETRY
dc.subjectTEMPERATURE
dc.titleParallaxes and physical properties of 11 mid-to-late T dwarfsen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
rioxxterms.versionofrecordhttps://doi.org/10.1051/0004-6361/201015394
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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