SIMBAD references

2005A&A...440L..55B - Astronomy and Astrophysics, volume 440, L55-58 (2005/9-3)

The first wide ultracool binary dwarf in the field: DENIS-J055146.0-443412.2 (M8.5 + L0).

BILLERES M., DELFOSSE X., BEUZIT J.-L., FORVEILLE T., MARCHAL L. and MARTIN E.L.

Abstract (from CDS):

We present observations of a new very low mass field binary, discovered during an infrared imaging survey of 250 DENIS L and very late-M dwarfs. DENIS-J055146.0-443412.2 is an M8.5+L0 pair, with a physical separation of over 200AU. This makes it the widest very low mass binary known in the field, by an order of magnitude. Such a system is fragile, and it would not have survived a close encounter with a third body. Its existence demonstrate that some very low mass stars/brown dwarfs form without ejection from a multiple system, or any other strong dynamical interaction.

Abstract Copyright: ∼

Journal keyword(s): stars - brown dwarfs - binary system - formation

Simbad objects: 4

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2005A&A...440L..55B and select 'bookmark this link' or equivalent in the popup menu