SIMBAD references

2000ApJ...533L.143M - Astrophys. J., 533, L143-L145 (2000/April-3)

L1551NE–Discovery of a binary companion.

MORIARTY-SCHIEVEN G.H., POWERS J.A., BUTNER H.M., WANNIER P.G. and KEENE J.

Abstract (from CDS):

L1551NE is a very young (class 0 or I) low-mass protostar located close to the well-studied L1551 IRS 5. Here we present evidence, from 1.3 mm continuum interferometric observations at ∼1" resolution, for a binary companion to L1551NE. The companion, whose 1.3 mm flux density is ~(1)/(3) that of the primary component, is located 1".43 (∼230 AU at 160 pc) to the southeast. The millimeter-wave emission from the primary component may have been just barely resolved, with a deconvolved size of ∼0'.82x0'.70 (∼131x112 AU). The companion emission was unresolved (<100 AU). The pair is embedded within a flattened circumbinary envelope of size ∼5'.4x2'.3 (∼860x370 AU). The masses of the three components (i.e., from the circumstellar material of the primary star and its companion and the envelope) are approximately 0.044, 0.014, and 0.023 M, respectively.

Abstract Copyright:

Journal keyword(s): Stars: Binaries: General - ISM: Individual: Alphanumeric: L1551NE - Stars: Formation

Nomenclature: Table 1: [MPB2000b] A (Nos A-B).

Simbad objects: 9

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2021.08.04-00:56:20

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