CfA Colloquium Schedule Fall 2014
 20 November 2014

20 November 2014

Speaker: Michael Cushing (Toledo)

Title: The Search for Cool Brown Dwarfs with WISE

Abstract: The study of brown dwarfs with effective temperatures less than 500 K can offer important insights into the complex physics of ultracool atmospheres, the shape of the initial mass function, and the low-mass limit of star formation. We have been using the Wide-field Infrared Survey Explorer (WISE) to search for just such a population of brown dwarfs and have identified twenty cool browns dwarfs that populate a new spectral class, dubbed 'Y'. In this talk, I will present the discovery of the Y dwarfs, summarize our current understanding of their physical properties, and discuss the enigmatic spectral energy distribution of the archetype Y dwarf WISE 1828+2650.


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