SIMBAD references

2014A&A...567A..20R - Astronomy and Astrophysics, volume 567A, 20-20 (2014/7-1)

A dusty M5 binary in the β Pictoris moving group.


Abstract (from CDS):

We report the identification of a new wide separation binary (LDS 5606) in the ∼20Myr-old β Pic moving group. This M5+M5 pair has a projected separation of 26'', or ∼1700AU at a distance of 65pc. Both stars host warm circumstellar disks and many strong hydrogen and helium emission lines. Spectroscopic observations reveal signatures of youth for both stars and on-going mass accretion in the primary. The properties of LDS 5606 make it an older analog to the ∼8Myr TWA 30 system, which is also composed of a pair of widely separated mid-M dwarfs, each hosting their own warm circumstellar disks. The binary star LDS 5606 joins a rather exclusive club of only three other known binary systems, far from any molecular cloud, where both members are orbited by detected circumstellar disks.

Abstract Copyright:

Journal keyword(s): binaries: general - open clusters and associations: individual: beta Pictoris - stars: evolution - stars: pre-main sequence

Simbad objects: 25

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