Simultaneous single-pulse observations of radio pulsars: I. The
polarization characteristics of PSR B0329+54
ArXiv astro-ph/0109507 (2001)
Authors:
A Karastergiou, A von Hoensbroech, M Kramer, DR Lorimer, AG Lyne, O Doroshenko, A Jessner, C Jordan, R Wielebinski
Abstract:
We present the first results from a programme of multi-frequency simultaneous
single pulse observations carried out as part of the European Pulsar Network.
We detail the main data analysis methods and apply them to simultaneous
observations of the strong pulsar B0329+54 at 1.4 and 2.7 GHz using the Jodrell
Bank and Effelsberg radio telescopes respectively. The pulses at different
frequencies are highly correlated in their total intensity, as seen in previous
experiments, and generally show consistent position angles of the linearly
polarized component. In contrast, the circularly polarized emission sometimes
shows clear differences between pulses received at different frequencies. These
results are unexpected and warrant further follow-up studies to interpret them
in the context of the intrinsic bandwidth of pulsar radiation.
