L1551NE is a very young ( class 0 or I ) low-mass protostar located close to the well-studied L1551 IRS5 .
We present here evidence , from 1.3mm continuum interferometric observations at \sim 1 ” resolution , for a binary companion to L1551NE .
The companion , whose 1.3mm flux density is \sim 1/3 that of the primary component , is located 1.43 ” ( \sim 230 A.U .
at 160pc ) to the southeast .
The millimeterwave emission from the primary component may have been just barely resolved , with deconvolved size \sim 0.82 ” x0.70 ” ( \sim 131x112 A.U . ) .
The companion emission was unresolved ( < 100 A.U . ) .
The pair is embedded within a flattened circum-binary envelope of size \sim 5.4 ” \times 2.3 ” ( \sim 860 \times 370 A.U . ) .
The masses of the three components ( i.e .
from the cicumstellar material of the primary star and its companion , and the envelope ) are approximately 0.044 , 0.014 and 0.023 M _ { \odot } respectively .