Forty seven new T dwarfs from the UKIDSS Large Area Survey

Ben Burningham,D. J. Pinfield,P. W. Lucas,S. K. Leggett,N. R. Deacon,M. Tamura,C. G. Tinney,N. Lodieu,Z. H. Zhang,N. Huelamo,H. R. A. Jones,D. N. Murray,D. J. Mortlock,M. Patel,D. Barrado y Navascues,M. R. Zapatero Osorio,M. Ishii,M. Kuzuhara,R. L. Smart

Monthly Notices of the Royal Astronomical Society（2010）

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Abstract

We report the discovery of 47 new T dwarfs in the Fourth Data Release (DR4) from the Large Area Survey (LAS) of the United Kingdom Infrared Telescope (UKIRT) Infrared Deep Sky Survey with spectral types ranging from T0 to T8.5. These bring the total sample of LAS T dwarfs to 80 as of DR4. In assigning spectral types to our objects we have identified eight new spectrally peculiar objects, and divid...

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Key words

surveys,brown dwarfs,stars: low-mass

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