Toward an Empirical Theory of Pulsar Emission XII: Exploring the Physical Conditions in Millisecond Pulsar Emission Regions

Abstract

The five-component profile of the 2.7-ms pulsar J0337+1715 appears to exhibit the best example to date of a core/double-cone emission-beam structure in a millisecond pulsar (MSP). Moreover, three other MSPs, the Binary Pulsar B1913+16, B1953+29 and J1022+1001, seem to exhibit core/single-cone profiles. These configurations are remarkable and important because it has not been clear whether MSPs and slow pulsars exhibit similar emission-beam configurations, given that they have considerably smaller magnetospheric sizes and magnetic field strengths. MSPs thus provide an extreme context for studying pulsar radio emission. Particle currents along the magnetic polar flux tube connect processes just above the polar cap through the radio-emission region to the light-cylinder and the external environment. In slow pulsars radio-emission heights are typically about 500 km around where the magnetic field is nearly dipolar, and estimates of the physical conditions there point to radiation below the plasma frequency and emission from charged solitons by the curvature process. We are able to estimate emission heights for the four MSPs and carry out a similar estimation of physical conditions in their much lower emission regions. We find strong evidence that MSPs also radiate by curvature emission from charged solitons.

14 pages, published in ApJ

References in corpus (12)

• PSRCHIVE and PSRFITS An Open Approach to Radio Pulsar Data Storage and Analysis
• A Study of Multi-frequency Polarization Pulse Profiles of Millisecond Pulsars
• Pulsar polarisation below 200 MHz: Average profiles and propagation effects
• High-fidelity radio astronomical polarimetry using a millisecond pulsar as a polarized reference source
• Altitude-dependent polarization in radio pulsars
• 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
• On the adiabatic walking of plasma waves in a pulsar magnetosphere
• Single pulse and profile variability study of PSR J1022+1001
• Toward an Empirical Theory of Pulsar Emission XI. Understanding the Orientations of Pulsar Radiation and Supernova "Kicks"
• Realistic Modeling of the Pulse Profile of PSR J0737-3039A
• The Effect of aberration on polarization position angle of pulsars

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• Radio pulsar polarization as a coherent sum of orthogonal proper mode waves
• Radio Pulsar Emission-Beam Geometry at Low Frequency: LOFAR High Band Survey Sources Studied using Arecibo at 1.4 GHz and 327 MHz
• Unveiling the emission properties of three long-period pulsars using FAST
• A NICER View of Spectral and Profile Evolution for Three X-ray Emitting Millisecond Pulsars
• Topology of Pulsar Profiles (ToPP). I. Graph theory method and classification of the EPN
• General relativistic effects on pulsar radiation
• Radio polarization of millisecond pulsars with multipolar magnetic fields