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Ultracool Dwarf Science from Widefield Multi-Epoch Surveys
N. R. Deacon, D. J. Pinfield, P. W. Lucas +9
Widefield surveys have always provided a rich hunting ground for the coolest stars and brown dwarfs. The single epoch surveys at the beginning of this century greatly expanded the…
Spitzer Mid-Infrared Photometry of 500 - 750 K Brown Dwarfs
S. K. Leggett, L. Albert, E. Artigau +11
Mid-infrared data, including Spitzer warm-IRAC [3.6] and [4.5] photometry, is critical for understanding the cold population of brown dwarfs now being found, objects which have mor…
Adaptive optics observations of the T10 ultracool dwarf UGPSJ072227.51-054031.2
H. Bouy, J. Girard, E. L. Martin +2
With a spectral type of T10, UGPS J072227.51-054031.2 is one of the coolest objects known to date in the solar neighborhood. Multiple systems are relatively common among early and…
Forty seven new T dwarfs from the UKIDSS Large Area Survey
Ben Burningham, D. J. Pinfield, P. W. Lucas +16
We report the discovery of 47 new T dwarfs in the Fourth Data Release (DR4) from the Large Area Survey (LAS) of the UKIRT Infrared Deep Sky Survey with spectral types ranging from…
Extended High Circular Polarization in the Orion Massive Star Forming Region: Implications for the Origin of Homochirality in the Solar System
Tsubasa Fukue, Motohide Tamura, Ryo Kandori +7
We present a wide-field (~6'x6') and deep near-infrared (Ks band: 2.14 micro m) circular polarization image in the Orion nebula, where massive stars and many low-mass stars are for…