dc.contributor.author | Lucas, P.W. | |
dc.contributor.author | Tinney, C. G. | |
dc.contributor.author | Burningham, B. | |
dc.contributor.author | Leggett, S. K. | |
dc.contributor.author | Pinfield, D.J. | |
dc.contributor.author | Smart, Richard | |
dc.contributor.author | Jones, H.R.A. | |
dc.contributor.author | Marocco, F. | |
dc.contributor.author | Barber, Robert J. | |
dc.contributor.author | Yurchenko, Sergei N. | |
dc.contributor.author | Tennyson, Jonathan | |
dc.contributor.author | Ishii, Miki | |
dc.contributor.author | Tamura, Motohide | |
dc.contributor.author | Day-Jones, Avril C. | |
dc.contributor.author | Adamson, Andrew | |
dc.contributor.author | Allard, France | |
dc.contributor.author | Homeier, Derek | |
dc.date.accessioned | 2011-04-07T11:14:03Z | |
dc.date.available | 2011-04-07T11:14:03Z | |
dc.date.issued | 2010 | |
dc.identifier.citation | Lucas , P W , Tinney , C G , Burningham , B , Leggett , S K , Pinfield , D J , Smart , R , Jones , H R A , Marocco , F , Barber , R J , Yurchenko , S N , Tennyson , J , Ishii , M , Tamura , M , Day-Jones , A C , Adamson , A , Allard , F & Homeier , D 2010 , ' The discovery of a very cool, very nearby brown dwarf in the Galactic plane ' , Monthly Notices of the Royal Astronomical Society: Letters , vol. 408 , no. 1 , pp. L56-L60 . https://doi.org/10.1111/j.1745-3933.2010.00927.x | |
dc.identifier.issn | 1745-3925 | |
dc.identifier.other | PURE: 160732 | |
dc.identifier.other | PURE UUID: 809d710e-675f-4b2b-b8c2-993b1dc906a8 | |
dc.identifier.other | dspace: 2299/5566 | |
dc.identifier.other | WOS: 000289808500012 | |
dc.identifier.other | Scopus: 78650457381 | |
dc.identifier.other | ORCID: /0000-0002-8872-4462/work/62748929 | |
dc.identifier.other | ORCID: /0000-0003-4600-5627/work/64327353 | |
dc.identifier.uri | http://hdl.handle.net/2299/5566 | |
dc.description.abstract | We report the discovery of a very cool, isolated brown dwarf, UGPS 0722−05, with the United Kingdom Infrared Telescope Deep Sky Survey (UKIDSS) Galactic Plane Survey. The near-infrared spectrum displays deeper H2O and CH4 troughs than the coolest known T dwarfs and an unidentified absorption feature at 1.275 μm. We provisionally classify the object as a T10 dwarf but note that it may in future come to be regarded as the first example of a new spectral type. The distance is measured by trigonometric parallax as d= 4.1+0.6−0.5 pc, making it the closest known isolated brown dwarf. With the aid of Spitzer/Infrared Array Camera (IRAC) we measure H−[4.5]= 4.71. It is the coolest brown dwarf presently known – the only known T dwarf that is redder in H−[4.5] is the peculiar T7.5 dwarf SDSS J1416+13B, which is thought to be warmer and more luminous than UGPS 0722−05. Our measurement of the luminosity, aided by Gemini/T-ReCS N-band photometry, is L= 9.2 ± 3.1 × 10−7 L⊙. Using a comparison with well-studied T8.5 and T9 dwarfs we deduce Teff= 520 ± 40 K. This is supported by predictions of the Saumon & Marley models. With apparent magnitude J= 16.52, UGPS 0722−05 is the brightest of the ∼90 T dwarfs discovered by UKIDSS so far. It offers opportunities for future study via high-resolution near-infrared spectroscopy and spectroscopy in the thermal infrared. | en |
dc.format.extent | 5 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society: Letters | |
dc.subject | surveys | |
dc.subject | brown dwarfs | |
dc.subject | stars: low mass | |
dc.subject | INITIAL MASS FUNCTION | |
dc.subject | METHANE T-DWARFS | |
dc.subject | SKY SURVEY | |
dc.subject | SOLAR NEIGHBORHOOD | |
dc.subject | UKIDSS | |
dc.subject | COMPANION | |
dc.subject | PARALLAXES | |
dc.subject | AGE | |
dc.title | The discovery of a very cool, very nearby brown dwarf in the Galactic plane | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.contributor.institution | Science & Technology Research Institute | |
dc.contributor.institution | Centre for Astrophysics Research | |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | https://doi.org/10.1111/j.1745-3933.2010.00927.x | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |