Meterwavelength Single-pulse Polarimetric Emission Survey

Abstract

We have conducted the Meterwavelength Single-pulse Polarimetric Emission Survey to study the radio emission properties of normal pulsars. A total of 123 pulsars with periods between 0.1 seconds and 8.5 seconds were observed in the survey at two different frequencies, 105 profiles at 333 MHz, 118 profiles at 618 MHz and 100 pulsars at both. In this work we concentrate primarily on the time-averaged properties of the pulsar emission. The measured widths of the pulsar profiles in our sample usually exhibit the radius to frequency mapping. We validate the existence of lower bounds for the distribution of profile widths with pulsar period ($P$), which is seen for multiple definitions of the width, viz. a lower boundary line (LBL) at $2.7^{\circ }{P}^{-0.5}$ with width measured at 50% level of profile peak, a LBL at $5.7^{\circ }{P}^{-0.5}$ for 10% level of peak and LBL at $6.3^{\circ }{P}^{-0.5}$ for width defined as 5$\sigma$ above the baseline level. In addition we have measured the degree of linear polarization in the average profile of pulsars and confirmed their dependence on pulsar spindown energy loss ($\dot{E}$). The single pulse polarization data show interesting trends with the polarization position angle (PPA) distribution exhibiting the simple rotating vector model for high $\dot{E}$ pulsars while the PPA becomes more complex for medium and low $\dot{E}$ pulsars. The single pulse total intensity data is useful for studying a number of emission properties from pulsars like subpulse drifting, nulling and mode changing which is being explored in separate works.

31 pages, 6 figures, Accepted for publication in ApJ

References in corpus (15)

• Pulsar Nulling and Mode Changing
• Radio Emission Signatures in the Crab Pulsar
• Profile and polarization characteristics of energetic pulsars
• The subpulse modulation properties of pulsars at 92 cm and the frequency dependence of subpulse modulation
• An empirical model for the beams of radio pulsars
• Profile morphology and polarization of young pulsars
• Pulsar polarisation below 200 MHz: Average profiles and propagation effects
• Meterwavelength Single-pulse Polarimetric Emission Survey II: The phenomenon of Drifting Subpulses
• Multi-frequency integrated profiles of pulsars
• Unraveling the nature of coherent pulsar radio emission
• Polarization observations of 100 pulsars at 774 MHz by the Green Bank Telescope
• Absolute Broadband Polarization Behaviour of PSR B0329+54: A Glimpse of the Core Emission Process
• Frequency dependence of pulse width for 150 radio normal pulsars
• On the adiabatic walking of plasma waves in a pulsar magnetosphere
• Toward an Empirical Theory of Pulsar Emission XI. Understanding the Orientations of Pulsar Radiation and Supernova "Kicks"

Cited by in corpus (21)

• Polarimetry of 600 pulsars from observations at 1.4 GHz with the Parkes radio telescope
• Meterwavelength Single-pulse Polarimetric Emission Survey II: The phenomenon of Drifting Subpulses
• Meterwavelength Single-pulse Polarimetric Emission Survey III: The Phenomenon of Nulling in Pulsars
• Periodic Modulation : Newly emergent emission behaviour in Pulsars
• 154 MHz detection of faint, polarized flares from UV Ceti
• The Nature of Coherent Radio Emission from Pulsars
• The Thousand-Pulsar-Array programme on MeerKAT: -- VI. Pulse widths of a large and diverse sample of radio pulsars
• Subpulse Drifting, Nulling and Mode changing in PSR J2006$-$0807 with Core emission
• 5 GHz TMRT observations of 71 pulsars
• A Mechanism of Spark Motion in Inner Acceleration Region to Investigate Subpulse Drifting in Pulsars
• A Single spark model for PSR J2144$-$3933
• Joint radio and X-ray modelling of PSR~J1136+1551
• Radio emission features in different modes of PSR J0826+2637 (B0823+26)
• Meterwavelength Single-pulse Polarimetric Emission Survey. V. Flux density, component spectral variation and emission states
• Investigation of the Mode-Switching Phenomenon in Pulsar B0329+54 Through Polarimetric Analysis
• Evidence for Coherent Curvature Radiation in PSR J1645$-$0317 with Disordered Distribution of Polarization Position Angle
• Ultraslow PSR J0901-4046 with an ultrahigh magnetic field of $3.2\times 10^{16}$ G
• Estimating the evolution of Sparks in Partially Screened Gap of Pulsars from Subpulse Drifting
• Spectral variation across Pulsar Profile due to Coherent Curvature Radiation
• Detecting Pulsar Polarization below 100 MHz with the Long Wavelength Array
• The GMRT High Resolution Southern Sky Survey for pulsars and transients -- III: searching for long period pulsars