2004A&A...427L...1F

Query : 2004A&A...427L...1F

2004A&A...427L...1F - Astronomy and Astrophysics, volume 427, L1-4 (2004/11-3)

An L0 dwarf companion in the brown dwarf desert, at 30 AU.

FORVEILLE T., SEGRANSAN D., DELORME P., MARTIN E.L., DELFOSSE X., ACOSTA-PULIDO J.A., BEUZIT J.-L., MANCHADO A., MAYOR M., PERRIER C. and UDRY S.

Abstract (from CDS):

We present the discovery of an L0 companion to the nearby M1.5 dwarf G 239-25, at a projected distance of 31AU. It is the faintest companion discovered so far in our adaptive optics survey of all known M dwarfs within 12pc, and it lies at the stellar/substellar limit. Given the assumed age of the primary star, the companion is likely an extremely low mass star. The long orbital period of G 239-25AB (≃100years) precludes a direct mass determination, but the relatively wide angular separation will allow detailed analyses of its near infrared and visible spectra.

Abstract Copyright: ∼

Journal keyword(s): very low mass stars - brown dwarfs - binary stars

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           T6.5 504 0
2 GD 165B BD* 14 24 39.09480 +09 17 10.4352         20.53 L4V 205 0
3 G 239-25 PM* 14 42 21.5756362789 +66 03 20.844850251   12.43 10.708 10.383   M3V 77 0

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