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26th of April 2019
The FAST pulsar J1926-0652
by Zhang et al.
The pulsar PSR J1926-0652 was recently discovered with the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in China. Using sensitive single-pulse detections from FAST and long-term timing observations from the Parkes 64-m radio telescope, Zhang et al. have probed phenomena on both long and short time scales. The sensitive FAST telescope enabled individual pulses to be studied in detail. The pulsar is found to exhibit at least four profile components, short-term nulling lasting from 4 to 450 pulses, complex subpulse drifting behaviours and intermittency on scales of tens of minutes. These observed complexities pose challenges for the classic carousel-type pulsar models. The image above is a pulse stack with the single uncalibrated polarization channel averaged across the FAST observing band from 270 to 800 MHz. The six active intervals are indicated as bursts. The left-hand-side panel shows the average pulse profile obtained from these pulses with the four pulse components indicated.

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