1999A&A...349L..41C

Query : 1999A&A...349L..41C

1999A&A...349L..41C - Astronomy and Astrophysics, volume 349, L41-44 (1999/9-2)

Discovery of a faint field methane brown dwarf from ES0 NTT and VLT observations.

CUBY J.G., SARACCO P., MOORWOOD A.F.M., D'ODORICO S., LIDMAN C., COMERON F. and SPYROMILIO J.

Abstract (from CDS):

We report the discovery of an isolated brown dwarf with similar properties to the binary object Gliese 229B and to the newly discovered field brown dwarfs from the SDSS and 2MASS surveys. Although exhibiting similar colors, its magnitude of ∼20.5 is about 6 magnitudes fainter than Gliese 229B. This is the most distant of the several methane brown dwarfs reported to date, at a distance of ∼90pc. Its IR spectrum, although at low S/N given the faintness of the object, is remarkably similar to those of the other methane brown dwarfs.

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Journal keyword(s): stars: low-mass, brown dwarfs - techniques: spectroscopic - Galaxy: stellar content - infrared: stars

Nomenclature: NTTDF JHHMM+DDMM N=1.

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 HD 42581B BD* 06 10 34.80 -21 52 00.0           T6.5 505 0
2 NTTDF J1205-0744 BD* 12 05 20.21 -07 44 01.0           T7 12 1
3 2MASS J16241436+0029158 BD* 16 24 14.36712 +00 29 15.8172           T6V 145 0

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