DE0823−49 is a juvenile binary brown dwarf at 20.7 pc

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Volume 579 (July 2015)

A&A, 579 (2015) A61

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Table 3

Derived age, masses, and mass ratio of DE0823−49 as a function of model and the relationship used to obtain theoretical masses, indicated in the column R.

Model	R	Age	M₁	M₂	q = M₂/M₁
		(Myr)	(M_⊙)	(M_⊙)

DUSTY	L_bol	[91, 473]	[0.028, 0.060]	[0.018, 0.044]	[0.65, 0.74]
DUSTY	L_bol
SM08^a	L_bol	[110, 568]	[0.031, 0.063]	[0.020, 0.045]	[0.65, 0.71]
SM08	L_bol
SM08	L_bol^b
DUSTY	T_eff	[83, 342]	[0.034, 0.054]	[0.022, 0.039]	[0.64, 0.73]
DUSTY	T_eff
SM08	T_eff	[86, 428]	[0.035, 0.060]	[0.022, 0.043]	[0.64, 0.71]
SM08	T_eff

Notes. There are two rows for every configuration, which give the parameter ranges as delineated by vertical lines in Figs. 8 and 9 and the best-fit values with uncertainties that reflect these ranges.

^(a)

Saumon & Marley (2008).

^(b)

These results were obtained when considering a systematic offset in the model that corresponds to making a brown dwarf of a given mass 0.3 dex brighter in terms of log L_bol.

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