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Direct Imaging and Spectroscopy of a Planetary Mass Candidate Companion to a Young Solar Analog
David Lafrenière, Ray Jayawardhana, Marten H. van Kerkwijk
We present Gemini near-infrared adaptive optics imaging and spectroscopy of a planetary mass candidate companion to 1RXS J160929.1-210524, a roughly solar-mass member of the 5 Myr-…
Lithium Depletion of Nearby Young Stellar Associations
Erin Mentuch, Alexis Brandeker, Marten H. van Kerkwijk +2
We estimate cluster ages from lithium depletion in five pre-main-sequence groups found within 100 pc of the Sun: TW Hydrae Association, Eta Chamaeleontis Cluster, Beta Pictoris Mov…
A Multiplicity Census of Young Stars in Chamaeleon I
David Lafreniere, Ray Jayawardhana, Alexis Brandeker +2
We present the results of a multiplicity survey of 126 stars spanning ~0.1-3 solar masses in the ~2-Myr-old Chamaeleon I star-forming region, based on adaptive optics imaging with…