233 citations · 1.3k across the 17 of their papers we have counts for
17 papers
Scintillation Properties of PSR B1133+16 Measured with Very Long Baseline Interferometry
Ashley M. Stock, Fardin Syed, Marten H. van Kerkwijk +3
The scintillation of pulsars reveals small-scale structure of the interstellar medium. A powerful technique for characterizing the scintillating structures (screens) combines analy…
Kinematics of Crab Giant Pulses
Akanksha Bij, Hsiu-Hsien Lin, Dongzi Li +7
The Crab Pulsar's radio emission is unusual, consisting predominantly of giant pulses, with durations of about a micro-second but structure down to the nano-second level, and brigh…
Mode changing and giant pulses in the millisecond pulsar PSR B1957+20
Nikhil Mahajan, Marten H. van Kerkwijk, Robert Main +1
Many radio pulsars have stable pulse profiles, but some exhibit mode changing where the profile switches between two or more quasi-stable modes of emission. So far, these effects h…
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…