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  • FURTHER DEFINING SPECTRAL T...
    KIRKPATRICK, J. Davy; GELINO, Christopher R; MAINZER, Amanda K; BURGASSER, Adam J; TINNEY, C. G; PARKER, Stephen; SALTER, Graeme; CUSHING, Michael C; MACE, Gregory N; GRIFFITH, Roger L; SKRUTSKIE, Michael F; MARSH, Kenneth A; WRIGHT, Edward L; EISENHARDT, Peter R; MCLEAN, Ian S

    The Astrophysical journal, 07/2012, Letnik: 753, Številka: 2
    Journal Article

    We present the discovery of another seven Y dwarfs from the Wide-field Infrared Survey Explorer (WISE). Using these objects, as well as the first six WISE Y dwarf discoveries from Cushing et al., we further explore the transition between spectral types T and Y. We present a table that updates the entire stellar and sub-stellar constituency within 8 pc of the Sun, and we show that the current census has hydrogen-burning stars outnumbering brown dwarfs by roughly a factor of six. We use these discoveries and their preliminary distances to place them in the larger context of the solar neighborhood. We present a table that updates the entire stellar and sub-stellar constituency within 8 pc of the Sun, and we show that the current census has hydrogen-burning stars outnumbering brown dwarfs by roughly a factor of six. More detailed monitoring and characterization of these Y dwarfs, along with dedicated searches aimed at identifying more examples, are certainly required.