Sengar et al. have reprocessed archival data from the High Time Resolution Universe South Low Latitude (HTRU-S LowLat) pulsar survey, discovering 71 new pulsars. They coherently searched the full 72-min observations of the survey with an acceleration search range up to 50 ms⁻², which is most sensitive to binary pulsars experiencing nearly constant acceleration during 72 minutes of their orbital period. The newly discovered pulsars include 6 millisecond pulsars, of which five are in binary systems, and seven pulsars with very high dispersion measures (DM >800 pc cm⁻³).

Another discovery, PSR J1518−60, exhibits evidence of “nulling”.  The pulsar shows broadband emission across the entire 350 MHz band but is visible in only ∼25% of the observation. It has a relatively high DM of 419 pc cm⁻³, bolstering the case that it is a real pulsar (and not intermittent, local radio frequency interference). There have been no further detections of it in 2.9 hr observations taken since its initial discovery in the survey, suggesting that it may have a large nulling fraction. To further detect this system, observations with high cadence or extending over longer durations will be required.  The top panel above shows the integrated profile of PSR J1518–60 and bottom plot shows the time-phase plot where the pulsar is visible for only ∼25 minutes.