dc.contributor.author | Cardoso, C. V. | |
dc.contributor.author | Burningham, B. | |
dc.contributor.author | Smart, R. L. | |
dc.contributor.author | Spaandonk, L. van | |
dc.contributor.author | Baker, D. | |
dc.contributor.author | Smith, L. C. | |
dc.contributor.author | Andrei, A.H. | |
dc.contributor.author | Bucciarelli, B. | |
dc.contributor.author | Dhital, S. | |
dc.contributor.author | Jones, H.R.A. | |
dc.contributor.author | Lattanzi, M. G. | |
dc.contributor.author | Magazzu, A. | |
dc.contributor.author | Pinfield, D.J. | |
dc.contributor.author | Tinney, C. G. | |
dc.date.accessioned | 2016-03-16T10:15:30Z | |
dc.date.available | 2016-03-16T10:15:30Z | |
dc.date.issued | 2015-07-01 | |
dc.identifier.citation | Cardoso , C V , Burningham , B , Smart , R L , Spaandonk , L V , Baker , D , Smith , L C , Andrei , A H , Bucciarelli , B , Dhital , S , Jones , H R A , Lattanzi , M G , Magazzu , A , Pinfield , D J & Tinney , C G 2015 , ' 49 new T dwarfs identified using methane imaging ' , Monthly Notices of the Royal Astronomical Society , vol. 450 , no. 3 , pp. 2486-2499 . https://doi.org/10.1093/mnras/stv380 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/1502.06503v1 | |
dc.identifier.other | ORCID: /0000-0003-4600-5627/work/64327338 | |
dc.identifier.uri | http://hdl.handle.net/2299/16809 | |
dc.description.abstract | We present the discovery of 49 new photometrically classified T dwarfs from the combination of large infrared and optical surveys combined with follow-up TNG photometry. We used multi-band infrared and optical photometry from the UKIRT and Sloan Digital Sky Surveys to identify possible brown dwarf candidates, which were then confirmed using methane filter photometry. We have defined a new photometric conversion between CH4s - CH4l colour and spectral type for T4 to T8 brown dwarfs based on a part of the sample that has been followed up using methane photometry and spectroscopy. Using methane differential photometry as a proxy for spectral type for T dwarfs has proved to be a very efficient technique. Of a subset of 45 methane selected brown dwarfs that were observed spectroscopically, 100% were confirmed as T dwarfs. Future deep imaging surveys will produce large samples of faint brown dwarf candidates, for which spectroscopy will not be feasible. When broad wavelength coverage is unavailable, methane imaging offers a means to efficiently classify candidates from such surveys using just a pair of near-infrared images. | en |
dc.format.extent | 608986 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.subject | astro-ph.SR | |
dc.title | 49 new T dwarfs identified using methane imaging | 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.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1093/mnras/stv380 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |