We report the discovery of a faint L6 \pm 1 companion to the previously known M9 dwarf , 2MASS J01303563 - 4445411 , based on our near-infrared imaging and spectroscopic observations with the 3m Infrared Telescope Facility SpeX imager/spectrometer .
The visual binary is separated by 3 \farcs 28 \pm 0 \farcs 05 on the sky at a spectrophotometric distance of 40 \pm 14 pc .
The projected physical separation is 130 \pm 50 AU , making it one of the widest VLM field multiples containing a brown dwarf companion .
2MASS J0130 - 4445 is only one of ten wide VLM pairs and only one of six in the field .
The secondary is considerably fainter ( \Delta K \approx 2.35 mag ) and redder ( \Delta ( J - K _ { s } ) \approx 0.81 dex ) , consistent with component near-infrared types of M9.0 \pm 0.5 and L6 \pm 1 based on our resolved spectroscopy .
The component types suggest a secondary mass below the hydrogen-burning limit and an age-dependent mass ratio of 0.6–0.9 .
The system ’ s space motion and spectroscopic indicators suggest an age of 2–4 Gyr while the model-dependent masses and binding energies suggest that this system is unlikely to have formed via dynamical ejection .
The age , composition , and separation of the 2MASS J01303563 - 4445411 system make it useful for tests of VLM formation theories and of condensate cloud formation in L dwarfs .