Bibcode
Burningham, Ben; Pinfield, D.; Leggett, S. K.; Lodieu, N.; Warren, S. J.; Lucas, P. W.; Tamura, M.; Mortlock, D.; Kendall, T. R.; Jones, H. R.; Jameson, R. F.; Richard, M.; Martin, E. L.; UKIDSS Cool Dwarf Science Working Group
Bibliographical reference
American Astronomical Society Meeting 210, #69.03; Bulletin of the American Astronomical Society, Vol. 39, p.176
Advertised on:
5
2007
Citations
1
Refereed citations
1
Description
The UKIRT Infrared Deep Sky Survey (UKIDSS) Large Area Survey (LAS)
presents an unparallelled resource for the study of field brown dwarfs.
The UKIDSS Cool Dwarf Science Working Group (CDSWG) is carrying out a
search for the lowest temperature brown dwarfs ever discovered, with the
possibility of identifying a new spectral class of ultracool dwarf: the
Y dwarf. CDSWG members identified 10 new T dwarfs in the early and first
data releases of the LAS, including 2 objects with spectral types later
than T7.5. One of these is thought to be the coolest T dwarf ever found
with a spectral type of T8.5, and an estimated temperature of 650K. Data
release 2 (DR2) took place on 1st March 2007, and already the most
promising objects have been selected and followed-up photometrically and
spectroscopically. In this contribution I will discuss the capabilities
of UKIDSS for identifying ultracool dwarfs and summarise our latest
results.