by Simon Johnston (CASS)

Swinburne student Fabian Jankowski and collaborators have presented the spectral properties of 441 pulsars using observations made with the Parkes radio telescope. They show that most (80%) pulsars have power-law spectra with a mean spectral index of -1.6. The remaining 20% show a variety of behaviour with some examples shown in the Figure.

Reference: F. Jankowski, W. van Straten, E.F. Keane, M. Bailes, S. Johnston, M. Kerr 2017, MNRAS, in press ( arXiv:1709.08864 )