SIMBAD references

2006AJ....131.1007B - Astron. J., 131, 1007-1014 (2006/February-0)

Resolved spectroscopy of M Dwarf/L dwarf binaries. I. DENIS J220002.05-303832.9AB.

BURGASSER A.J. and McELWAIN M.W.

Abstract (from CDS):

We present the discovery of the common proper motion M9+L0 binary DENIS J220002.05-303832.9AB, identified serendipitously with the SpeX near-infrared imager/spectrograph. Spectral types are derived from resolved near-infrared spectroscopy of the well-separated (1".09±0".06) components and comparison to equivalent data for M and L dwarf spectral standards. Physical association is deduced from the angular proximity of the sources, their common proper motion, and their similar spectrophotometric distances (35±2 pc). The estimated distance of this pair implies a projected separation of 38±3 AU, wider than typical separations for other M dwarf/L dwarf binaries but consistent with the maximum separation/total system mass trend previously identified by Burgasser et al. We discuss the DENIS 2200-3038AB system in context with other low-mass binaries and its role in the study of dust formation processes and activity trends across the transition between the M and L dwarf spectral classes.

Abstract Copyright:

Journal keyword(s): Stars: Binaries: Visual - stars: individual (DENIS J220002.05-303832.9) - Stars: Low-Mass, Brown Dwarfs

Status at CDS : All or part of tables of objects could be ingested in SIMBAD; there are some issues with cross-identifications or classifications.

CDS comments: LP 724-37 is a misprint for LP 714-37

Simbad objects: 17

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2022.08.18-12:44:13

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