Pulsar polarization: a partial-coherence model
arXiv:2307.14265 · doi:10.1093/mnras/stad2271
Abstract
The population of radio pulsars is observed to demonstrate certain polarization properties not explained by the conventional picture of pulsar polarization, namely frequency evolution of polarization, deviations of the linear polarization angle from a curve of geometric origins and the presence of features in the circular polarization. We present the partial-coherence model as a way to explain the co-occurrence of these features and to provide an origin for circular polarization in radio pulsar profiles. We describe the mathematics of the model and demonstrate how it can explain these observed features, both on a population level and for the idiosyncrasies of individual pulsars. The partial coherence model can account for complex polarization behaviour, enabling improved access to information about pulsar geometries. We discuss the scientific implications of this for our understanding of pulsar radio emission and propagation.
arXiv comment15 pages, 10 figures
References in corpus (14)
- Emission Beam Geometry of Selected Pulsars Derived from Average Pulse Polarization Data
- Profile and polarization characteristics of energetic pulsars
- An empirical model for the beams of radio pulsars
- Profile morphology and polarization of young pulsars
- Radio emission from a pulsar's magnetic pole revealed by general relativity
- Faraday depolarization and induced circular polarization by multi-path propagation with application to FRBs
- On the beam properties of radio pulsars with interpulse emission
- Polarisation profiles of southern pulsars at 3.1 GHz
- A transient component in the pulse profile of PSR J0738-4042
- On the circular polarization of pulsar radiation
- Pulsar polarization: a broad-band population view with the Parkes Ultra-Wideband receiver
- Radio pulsar polarization as a coherent sum of orthogonal proper mode waves
- The polarization of the drifting sub-pulses from PSR B1919+21
- Orthogonal polarization mode phenomenon in pulsars
Cited by in corpus (7)
- An emission state switching radio transient with a 54 minute period
- Deep Synoptic Array Science: Polarimetry of 25 New Fast Radio Bursts Provides Insights into their Origins
- Linear to circular conversion in the polarized radio emission of a magnetar
- Rapid Rotation of Polarization Orientations in PSR B1919+21's Single Pulses: Implications On Pulsar's Magnetospheric Dynamics
- Origin of radio polarization in pulsar polar caps
- Pulsar electrodynamics inferred from frequency-dependent circular polarization diversity
- Multifrequency evolution of the Integrated pulse profile of radio pulsars by implementing the inverse Compton mechanism