Unusual scattering variability of the Crab Pulsar

The Crab pulsar is a well-known, bright pulsar with interesting features such as giant pulses, glitches and anomalous scattering. We observed the Crab at 350MHz over two years with the Westerbork Synthesis Radio Telescope to investigate a period of anomalous scattering that occured from late 2012 to early 2013. During this period an extra feature on the Crab, called an echo, was observed. The echo varies on short timescales and is thought to be caused by scattering close to the pulsar. I will discuss modelling the Crab pulse profile and our investigation of the echo. I will also discuss some new, unexplained features of the profile.

Laura Driessen — API -- UvA
Thursday 2 March 2017, 12:00
Location: C4.174