Toward An Empirical Theory of Pulsar Emission VIII: Subbeam Circulation and the Polarization-Modal Structure of Conal Beams

Abstract

The average polarization properties of conal single and double profiles directly reflect the polarization-modal structure of the emission beams which produce them. These average properties require that the circulating subbeam systems which produce conal beams entail paired PPM and SPM emission elements which are offset from each other in both magnetic azimuth and magnetic colatitude. A clear delineation of the modal polarization topology of the conal beam promises to address fundamental questions about the nature and origin of this modal emission--and the modal parity at the outer beam edges is a fact of considerable significance. The different angular dependences of the modal ``beamlets'' suggests that the polarization modes are generated via propagation effects. This argument may prove much stronger if the modal emission is fundamentally only partially polarized. Several theories now promise quantitative comparison with the observations.

Submitted to Astrophysical Journal

References in corpus (4)

• Toward An Empirical Theory of Pulsar Emission. VII. On the Spectral Behavior of Conal Beam Radii and Emission Heights
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• Simultaneous single-pulse observations of radio pulsars: I. The polarization characteristics of PSR B0329+54
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Cited by in corpus (30)

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• PSR 2303+30: A single system of drifting subpulses, moding and nulling
• Classification of Subpulse Drifting in Pulsars
• Toward an Empirical Theory of Pulsar Emission. IX. On the Peculiar Properties and Geometric Regularity of Lyne & Manchester's "Partial Cone" Pulsars
• Altitude-dependent polarization in radio pulsars
• Meterwavelength Single-pulse Polarimetric Emission Survey
• Core and Conal Component Analysis of Pulsar B1237+25
• Bistable Profile Illumination in Pulsars B0919+06 & B1859+07
• Absolute Broadband Polarization Behaviour of PSR B0329+54: A Glimpse of the Core Emission Process
• The nature of pulsar radio emission
• Curvature Radiation in Rotating Pulsar Magnetosphere
• Frequency independent quenching of pulsed emission
• Subpulse Drifting, Nulling and Mode changing in PSR J2006$-$0807 with Core emission
• Effects of Quasi-Orthogonal EMission Modes on the Rotation Measures of Pulsars
• Unusual profile variations in pulsar PSR J1022+1001 -- Evidence for magnetospheric "return currents"?
• The Polarization of Drifting Subpulses
• The Transition between Nonorthogonal Polarization Modes in PSR B2016+28 at 1404 MHz
• Inter-relationship between the Two Emission Cones of B1237+25
• Simultaneous radio and X-ray observations of PSR B0611+22
• Using the Intensity Modulation Index to Test Pulsar Radio Emission Models
• A Pulsational Model for the Orthogonal Polarization Modes in Radio Pulsars
• Polarized Curvature Radiation in Pulsar Magnetosphere
• Pulsar Emission Beam Geometry of Radio Broadband Arecibo Sources
• Stokes tomography of radio pulsar magnetospheres. I. Linear polarization
• Radio pulsar polarization as a coherent sum of orthogonal proper mode waves
• The polarization of the drifting sub-pulses from PSR B1919+21
• A model for distortions of polarisation-angle curves in radio pulsars
• Expected imprints of the carousel in multi-frequency pulsar observations and new evidence for multi-altitude emission
• Pulsar B1237+25 at 111~MHz: average profile, mode switching, nullings, microstructure