L dwarfs in the Hyades

Abstract

We present the results of a proper motion survey of the Hyades to search for brown dwarfs, based on UKIDSS and 2MASS data. This survey covers ~275 square degrees to depth of K~15 mag, equivalent to a mass of 0.05 solar masses assuming a cluster age of 625 Myr. The discovery of 12 L dwarf Hyades members is reported. These members are also brown dwarfs, with masses between 0.05 < M < 0.075 solar masses. A high proportion of these L dwarfs appear to be photometric binaries.

7 pages, 4 figures, 2 tables. Accepted for publication in MNRAS

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Cited by in corpus (24)

• A deep all-sky census of the Hyades
• The lithium depletion boundary and the age of the Hyades cluster
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• A 3D view of the Hyades stellar and sub-stellar population
• Proper motions of field L and T dwarfs
• A 2MASS/AllWISE Search for Extremely Red L Dwarfs -- The Discovery of Several Likely L Type Members of $\beta$ Pic, AB Dor, Tuc-Hor, Argus, and the Hyades
• Discovery of the first wide L dwarf + giant binary system and eight other ultra-cool dwarfs in wide binaries
• Towards a complete stellar mass function of the Hyades. I. Pan-STARRS1 optical observations of the low-mass stellar content
• A Brown Dwarf Census from the SIMP Survey
• Lithium depletion boundary, stellar associations, and Gaia
• Spectroscopy of Hyades L dwarf candidates
• Substellar multiplicity in the Hyades cluster
• Results from The COPAINS Pilot Survey: four new brown dwarfs and a high companion detection rate for accelerating stars
• The VAST Survey - IV. A wide brown dwarf companion to the A3V star $\zeta$ Delphini
• Probing the Upper Scorpius mass function in the planetary-mass regime
• Spectroscopy and kinematics of low-mass members of young moving groups
• A new L5 brown dwarf member of the Hyades cluster with chromospheric activity
• Low Mass Stars and Brown Dwarfs in Praesepe
• Proper motions of field L and T dwarfs -II
• Exploring the substellar population in the Hyades open cluster
• Search for the sub-stellar lithium depletion boundary in the open star cluster Coma Berenices
• A survey for low-mass stellar and substellar members of the Hyades open cluster
• Two close binaries across the hydrogen-burning limit in the Praesepe open cluster
• Substellar Hyades Candidates from the UKIRT Hemisphere Survey