Individual pulse emission from the diffuse drifter PSR J14016357 using the ultrawideband receiver on the Parkes radio telescope
arXiv:2212.05193 · doi:10.1093/mnras/stac3654
Abstract
In this study, we report on a detailed single pulse analysis of the radio emission from the pulsar J14016357 (B135863) based on data observed with the ultrawideband low-frequency receiver on the Parkes radio telescope. In addition to a weak leading component, the integrated pulse profile features a single-humped structure with a slight asymmetry. The frequency evolution of the pulse profile is studied. Well-defined nulls, with an estimated nulling fraction greater than 2\%, are present across the whole frequency band. No emission is detected with significance above 3 in the average pulse profile integrated over all null pulses. Using fluctuation spectral analysis, we reveal the existence of temporal-dependent subpulse drifting in this pulsar for the first time. A clear double-peaked feature is present at exactly the alias border across the whole frequency band, which suggests that the apparent drift sense changes during the observation. Our observations provide further confirmation that the phenomena of pulse nulling and subpulse drifting are independent of observing frequency, which suggest that they invoke changes on the global magnetospheric scale.
10 pages, 13 figures
References in corpus (48)
- The ATNF Pulsar Catalogue
- PSRCHIVE and PSRFITS An Open Approach to Radio Pulsar Data Storage and Analysis
- Switched magnetospheric regulation of pulsar spin-down
- A periodically active pulsar giving insight into magnetospheric physics
- Pulsar Nulling and Mode Changing
- The subpulse modulation properties of pulsars at 21 cm
- An ultra-wide bandwidth (704 to 4032 MHz) receiver for the Parkes radio telescope
- The Parkes multibeam pulsar survey: IV. Discovery of 180 pulsars and parameters for 281 previously known pulsars
- Rocking the Lighthouse: Circumpulsar Asteroids and Radio Intermittency
- A model for nulling and mode changing in pulsars
- Polarimetry of 600 pulsars from observations at 1.4 GHz with the Parkes radio telescope
- The subpulse modulation properties of pulsars at 92 cm and the frequency dependence of subpulse modulation
- The High Time Resolution Universe Survey - V: Single-pulse energetics and modulation properties of 315 pulsars
- Evolution of LMXBs under Different Magnetic Braking Prescriptions
- The Parkes Observatory Pulsar Data Archive
- Meterwavelength Single-pulse Polarimetric Emission Survey II: The phenomenon of Drifting Subpulses
- Mode Switching and Subpulse Drifting in PSR B0826-34
- PSR 2303+30: A single system of drifting subpulses, moding and nulling
- Classification of Subpulse Drifting in Pulsars
- Frequency dependence of the drifting subpulses of PSR B0031-07
- On the formation of PSR J1640+2224: a neutron star born massive?
- Meterwavelength Single-pulse Polarimetric Emission Survey III: The Phenomenon of Nulling in Pulsars
- On plasma rotation and drifting subpulses in pulsars; using aligned pulsar B0826-34 as a voltmeter
- Periodic Modulation : Newly emergent emission behaviour in Pulsars
- Unraveling the drift behaviour of the remarkable pulsar PSR B0826-34
- Pulsar state switching, timing noise and free precession
- Investigation of the unique nulling properties of PSR B0818-41
- The Thousand-Pulsar-Array programme on MeerKAT: -- VI. Pulse widths of a large and diverse sample of radio pulsars
- On the long nulls of PSRs J1738-2330 and J1752+2359
- Frequency dependence of pulse width for 150 radio normal pulsars
- On the origin of the bi-drifting subpulse phenomenon in pulsars
- Periodic mode changing in PSR J1048-5832
- Subpulse Drifting, Nulling and Mode changing in PSR J20060807 with Core emission
- Core and Conal Component Analysis of Pulsar B1933+16 --- Investigation of the Segregated Modes
- A Mechanism of Spark Motion in Inner Acceleration Region to Investigate Subpulse Drifting in Pulsars
- Explaining high-braking indice of magnetars SGR 0501+4516 and 1E 2259+586 using the double magnetic-dipole model
- Rapid Modification of Neutron Star Surface Magnetic Field: A proposed mechanism for explaining Radio Emission State Changes in Pulsars
- The frequency-dependent behaviour of subpulse drifting: I. Carousel geometry and emission heights of PSR B0031-07
- Fluctuation Properties and Polar Emission Mapping of Pulsar B0834+06 at Decameter Wavelengths
- Pulsar bi-drifting: implications for polar cap geometry
- Periodic Longitude-Stationary Non-Drift Emission in Core-Single Radio Pulsar B1946+35
- The dissipation of toroidal magnetic fields and spin-down evolution of young and strongly magnetized pulsars
- Meterwavelength Single-pulse Polarimetric Emission Survey IV: The Period Dependence of Component Widths of Pulsars
- Simultaneous multi-frequency single pulse observations of pulsars
- Investigation of the Mode-Switching Phenomenon in Pulsar B0329+54 Through Polarimetric Analysis
- Radio Pulsar Beam Geometry at Lower Frequencies: Bright Sources Outside the Arecibo Sky
- A Non-Radial Oscillation Model for Pulsar State Switching
- Two Dimensional Configuration and Temporal Evolution of Sparking discharges in Pulsars