Jiamusi Pulsar Observations: I. Abnormal emission events of PSR B0919+06

Abstract

PSR B0919+06 generally radiates radio pulses in a normal phase range. It has been known for its occasional perplexing abnormal emission events wherein individual pulses come to an earlier phase range for a few tens of periods and then returns to its usual phase. Heretofore, only a few such events have been available for study. We observed PSR B0919+06 for about 30 hours using the Jiamusi 66-m telescope at Jiamusi Deep Space Station at S-band, and detected 92 abnormal emission events. We identify four types of events based on the abrupted or gradual phase-shifting of individual pulses. The abnormal emission events are seen to occur randomly some every 1000 to 3000 periods, and they affect the leading edge of the mean profile by up to 2\% in amplitude. The abnormal emission events are probably related to gradual changes of emission processing in the pulsar magnetosphere.

arXiv comment9 pages, 13 figures. MNRAS Published

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Cited by in corpus (14)

• The Mode Switching in Pulsar J1326$-$6700
• Jiamusi pulsar observations: III. Nulling of 20 pulsars
• Rapid Modification of Neutron Star Surface Magnetic Field: A proposed mechanism for explaining Radio Emission State Changes in Pulsars
• Quasi-Periodicities in the Anomalous Emission Events in Pulsars B1859+07 and B0919+06
• Pulsar bi-drifting: implications for polar cap geometry
• Periodic Longitude-Stationary Non-Drift Emission in Core-Single Radio Pulsar B1946+35
• Scattering study of Pulsars below 100 MHz using LWA1
• Meterwavelength Single-pulse Polarimetric Emission Survey. V. Flux density, component spectral variation and emission states
• Jiamusi Pulsar Observations: II. Scintillations of 10 Pulsars
• Multi-frequency study of the peculiar pulsars PSR B0919+06 and PSR B1859+07
• Multifrequency behaviour of the anomalous events of PSR J0922+0638
• Jiamusi pulsar observations: IV. The core-weak pattern of PSR B0329+54
• The unusual emission from PSR B1859+07 with FAST
• Timing results of 22 years for PSR J0922+0638