SIMBAD references

2005AJ....130.2347E - Astron. J., 130, 2347-2351 (2005/November-0)

The 2MASS wide-field T dwarf search. V. Discovery of a T dwarf via methane imaging.

ELLIS S.C., TINNEY C.G., BURGASSER A.J., KIRKPATRICK J.D. and McELWAIN M.W.

Abstract (from CDS):

We present the discovery of a T dwarf, 2MASS 2151-4853, via differential imaging through methane filters. The filters are designed to highlight the strong absorption in the H band due to methane found in the atmospheres of T dwarfs and provide a very efficient means of searching for them. Subsequent J- and H-band spectroscopy confirms 2MASS 2151-4853 as a T dwarf of type T4.5. It has an estimated spectrophotometric distance of 18±3 pc and an estimated tangential velocity of vt=50±10 km/s.

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Journal keyword(s): stars: individual (2MASS J21513839-4853542) - Stars: Low-Mass, Brown Dwarfs

Simbad objects: 2

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