Altitude-dependent polarization in radio pulsars
arXiv:0806.0554 · doi:10.1111/j.1365-2966.2008.13923.x
Abstract
Because of the corotation, the polarization angle (PA) curve of a pulsar lags the intensity profile by 4r/Rlc rad in pulse phase. I present a simple and short derivation of this delay-radius relation to show that it is not caused by the aberration (understood as the normal beaming effect) but purely by contribution of corotation to the electron acceleration in the observer's frame. Available altitude-dependent formulae for the PA curve are expressed through observables and emission altitude to make them immediately ready to use in radio data modelling. The analytical approximations for the altitude-dependent PA curve are compared with exact numerical results to show how they perform at large emission altitudes. I also discuss several possible explanations for the opposite-than-normal shift of PA curve, exhibited by the pedestal emission of B1929+10 and B0950+08.
12 pages, 5 figures, accepted by MNRAS after minor changes
References in corpus (22)
- A Radio Pulsar Spinning at 716 Hz
- A periodically active pulsar giving insight into magnetospheric physics
- Pulsar Jets: Implications for Neutron Star Kicks and Initial Spins
- Emission Beam Geometry of Selected Pulsars Derived from Average Pulse Polarization Data
- Light Curves of Rapidly Rotating Neutron Stars
- On the methods of determining the radio emission geometry in pulsar magnetospheres
- An empirical model for the beams of radio pulsars
- Understanding the radio emission geometry of multi-component radio pulsars from retardation and aberration effects
- Polarization Sweeps in Rotation Powered Pulsars
- The characteristics of millisecond pulsar emission: II. Polarimetry
- Rotational sweepback of magnetic field lines in geometrical models of pulsar radio emission
- Multi-frequency integrated profiles of pulsars
- Polarization of high-energy emissions from the Crab pulsar
- Toward An Empirical Theory of Pulsar Emission VIII: Subbeam Circulation and the Polarization-Modal Structure of Conal Beams
- Vela, its X-ray nebula, and the polarization of pulsar radiation
- Unusual profile variations in pulsar PSR J1022+1001 -- Evidence for magnetospheric "return currents"?
- On Pair Production in the Crab Pulsar
- Pulsar shadow as the origin of double notches in radio pulse profiles
- Rotation as a source of asymmetry in the double-peak lightcurves of the bright EGRET pulsars
- A model for double notches and bifurcated components in radio profiles of pulsars and magnetars - Evidence for the parallel acceleration maser in pulsar magnetosphere
- Radio Emission by Particles due to Pulsar Spin
- The Effects of Finite Emission Height in Precision Pulsar Timing
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- The High Time Resolution Universe Pulsar Survey IV: Discovery and polarimetry of millisecond pulsars
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- Meterwavelength Single-pulse Polarimetric Emission Survey IV: The Period Dependence of Component Widths of Pulsars
- Relativistic model on pulsar radio emission and polarization
- On the mean profiles of radio pulsars II: Reconstruction of complex pulsar light-curves and other new propagation effects
- Toward an Empirical Theory of Pulsar Emission XII: Exploring the Physical Conditions in Millisecond Pulsar Emission Regions
- Stokes tomography of radio pulsar magnetospheres. I. Linear polarization
- Altitude Limits for Rotating Vector Model Fitting of Pulsar Polarization
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- A model for distortions of polarisation-angle curves in radio pulsars
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- Investigating the emission signatures of pulsar halo candidate HESS J1813-126
- The Stokes Phase Portraits of Descattered Pulse Profiles of a Few Pulsars