10 New Very Low Mass Close Binaries Resolved in the Visible

Details 10 New Very Low Mass Close Binaries Resolved in the Visible 10 New Very Low Mass Close Binaries Resolved in the Visible

2005-12-07

arxiv.org/abs/astro-ph/0512191v1

Astron.Nachr. 326 (2005) 1024-1025

Astronomy and Astrophysics

Astrophysics

Accepted to Astron. Nachr

Scientific paper

10.1002/asna.200510455

We present preliminary results from the first part of the LuckyCam late M-dwarf binarity survey. We survey a sample of 48 nearby ($<$40 pc) and red (M5-M9) stars with the novel high angular resolution visible light imaging technique Lucky Imaging, in only 8 hours of 2.5m telescope time. We discover 10 new binaries; although the survey is sensitive to brown dwarf companions none are detected. The orbital radius distribution of the newly discovered binaries broadly matches that of previous detections by other groups, although we do discover one wide binary at ~40AU.

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