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  • A STUDY OF THE DIVERSE T DW...
    Mace, Gregory N; Kirkpatrick, J Davy; Cushing, Michael C; GELINO, CHRISTOPHER R; Griffith, Roger L; Skrutskie, Michael F; Marsh, Kenneth A; Wright, Edward L; Eisenhardt, Peter R; McLean, Ian S

    The Astrophysical journal. Supplement series, 03/2013, Letnik: 205, Številka: 1
    Journal Article

    We report the discovery of 87 new T dwarfs uncovered with the Wide-field Infrared Survey Explorer (WISE) and 3 brown dwarfs with extremely red near-infrared colors that exhibit characteristics of both L and T dwarfs. Two of the new T dwarfs are likely binaries with L7 + or - 1 primaries and mid-type T secondaries. In addition, our follow-up program has confirmed 10 previously identified T dwarfs and 4 photometrically selected L and T dwarf candidates in the literature. This sample, along with the previous WISE discoveries, triples the number of known brown dwarfs with spectral types later than T5. Using the WISE All-Sky Source Catalog we present updated color-color and color-type diagrams for all the WISE-discovered T and Y dwarfs. The substantial increase in the number of known late-type T dwarfs provides a population that will be used to test models of cold atmospheres and star formation. The coolest WISE-discovered brown dwarfs are the closest of their type and will remain the only sample of their kind for many years to come.