The detection of pulsars associated with supernova remnants (SNRs) and/or pulsar wind nebulae (PWNe) is crucial for unraveling their formation history, yet the association with a radio pulsar is observed only in a small fraction of known SNRs and PWNe. Ahmad et al. report the discovery of a young pulsar, J1631-4722, associated with the Galactic SNR G336.7+0.5 using Murriyang, the CSIRO Parkes radio telescope. This 118 ms pulsar has a high dispersion measure (DM) of ∼873 pc/cm3. As a result of this high DM, at frequencies below 2 GHz the pulse profile is significantly scattered, explaining why it would have been effectively undetectable in previous pulsar surveys at ∼1.4 GHz. The image above shows multi-frequency pulse profiles of the PSR J1631–4722 above 2 GHz. Profiles at 2136, 2635, 2991, 3357, and 3836 MHz are vertically aligned from bottom to top (black), along with the assumed intrinsic pulse profile based on a fit to 3836 MHz data (red). The blue curves represent the best-fit exponential scattering model profiles. The timescales for the scattering fits to corresponding sub-bands are labelled.
