11 citations · 11 across the 3 of their papers we have counts for
6 papers · 1 filter
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…
Deciphering the Pulsations of G 29-38 with Optical Time Series Spectroscopy
Susan E. Thompson, M. H. van Kerkwijk, J. C. Clemens
We present optical time series spectroscopy of the pulsating white dwarf star G29-38 taken at the Very Large Telescope (VLT). By measuring the variations in brightness, Doppler shi…
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…
Contact binaries with additional components. III. The adaptive optics detections
Slavek M. Rucinski, Theodor Pribulla, Marten van Kerkwijk
We present results of the CFHT adaptive optics search for companions of a homogeneous group of contact binary stars, as a contribution to our attempts to prove a hypothesis that th…
Isolated neutron stars: Magnetic fields, distances, and spectra
M. H. van Kerkwijk, D. L. Kaplan
We present timing measurements, astrometry, and high-resolution spectra of a number of nearby, thermally emitting, isolated neutron stars. We use these to infer magnetic field stre…