Proper motions of field L and T dwarfs

R. F. Jameson,S. L. Casewell,N. P. Bannister,N. Lodieu,K. Keresztes,P. D. Dobbie,S. T. Hodgkin

Monthly Notices of the Royal Astronomical Society（2008）

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摘要

The proper motion measurements for 143 previously known L and T dwarfs are presented. From this sample we identify and discuss eight high-velocity L dwarfs. We also find four new wide common proper motion binaries/multiple systems. Using the moving cluster methods we have also identified a number of L dwarfs that may be members of the Ursa Major (age ≈ 400 Myr), the Hyades (age ≈ 625 Myr) and the ...

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stars: kinematics,stars: low-mass, brown dwarfs,open clusters and associations: individual: Ursa Major,open clusters and associations: individual: Hyades,open clusters and associations: individual: Pleiades

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