Discovery of Two Very Wide Binaries with Ultracool Companions and a New
  Brown Dwarf at the L/T Transition
  We present the discovery and spectroscopic follow-up of a nearby late-type L
dwarf (2M0614+3950), and two extremely wide very-low-mass binary systems
(2M0525-7425AB and 2M1348-1344AB), resulting from our search for common proper
motion pairs containing ultracool components in the Two Micron All Sky Survey
(2MASS) and the Wide-field Infrared Survey Explorer (WISE) catalogs. The
near-infrared spectrum of 2M0614+3950 indicates a spectral type L$9 \pm 1$
object residing at a distance of $26.0 \pm 1.8$ pc. The optical spectrum of
2M0525-7425A reveals an M$3.0 \pm 0.5$ dwarf primary, accompanied by a
secondary previously classified as L2. The system has an angular separation of
$\sim 44"$, equivalent to $\sim 2000 $AU at distance of $46.0 \pm 3.0$ pc.
Using optical and infrared spectra, respectively, we classify the components of
2M1348-1344AB as M$4.5 \pm 0.5$ and T$5.5 \pm 1$. The angular separation of
$\sim 68"$ is equivalent to $\sim 1400 $AU at a distance of $20.7 \pm 1.4$ pc.
2M1348-1344AB is one of only six very wide (separation $>$ 1000 AU) systems
containing late T dwarfs known to date.
