On the beam properties of radio pulsars with interpulse emission

Abstract

In the canonical picture of pulsars, radio emission arises from a narrow cone centered on the star's magnetic axis but many basic details remain unclear. We use high-quality polarization data taken with the Parkes radio telescope to constrain the geometry and emission heights of pulsars showing interpulse emission, and include the possibility that emission heights in the main and interpulse may be different. We show that emission heights are low in the centre of the beam, typically less than 3\% of the light cylinder radius. The emission beams are under-filled in longitude, with an average profile width only 60% of the maximal beam width and there is a strong preference for the visible emission to be located on the trailing part of the beam. We show substantial evidence that the emission heights are larger at the beam edges than in the beam centre. There is some indication that a fan-like emission beam explains the data better than conal structures. Finally, there is a strong correlation between handedness of circular polarization in the main and interpulse profiles which implies that the hand of circular polarization is determined by the hemisphere of the visible emission.

Accepted by MNRAS

References in corpus (18)

• On the birthrates of Galactic neutron stars
• A Study of Multi-frequency Polarization Pulse Profiles of Millisecond Pulsars
• Profile and polarization characteristics of energetic pulsars
• Polarimetry of 600 pulsars from observations at 1.4 GHz with the Parkes radio telescope
• Pulsar braking and the P-Pdot diagram
• An empirical model for the beams of radio pulsars
• Profile morphology and polarization of young pulsars
• The population of pulsars with interpulses and the implications for beam evolution
• Altitude-dependent polarization in radio pulsars
• A Fan Beam Model for Radio Pulsars. I. Observational Evidence
• On the pulse--width statistics in radio pulsars. I. Importance of the interpulse emission
• The main- interpulse interaction of PSR B1702-19
• The Period-Width relationship for radio pulsars revisited
• Investigating the magnetic inclination angle distribution of $\gamma$-ray-loud radio pulsars
• High-precision geometry of a double-pole pulsar
• Visibility of pulsar emission: motion of the visible point
• The origin of the frequency-dependent behaviour of pulsar radio profiles
• Statistics of interpulse radio pulsars - the key to solving the alignment/counter-alignment problem

Cited by in corpus (30)

• The Thousand-Pulsar-Array programme on MeerKAT XI: Application of the rotating vector model
• PSR J2222--0137. I. Improved physical parameters for the system
• The Relativistic Binary Programme on MeerKAT: Science objectives and first results
• The Thousand-Pulsar-Array programme on MeerKAT IV: Polarisation properties of young, energetic pulsars
• An in-depth investigation of 11 pulsars discovered by FAST
• The dynamic magnetosphere of Swift J1818.0$-$1607
• The emission of interpulses by a 6.45-hour period coherent radio transient
• Deep Synoptic Array Science: Polarimetry of 25 New Fast Radio Bursts Provides Insights into their Origins
• Orthogonal pulsars as a key test for pulsar evolution
• Pulsar polarization: a partial-coherence model
• The eccentric millisecond pulsar, PSR J0955$-$6150 I: Pulse profile analysis, mass measurements and constraints on binary evolution
• Rotating vector model for magnetars
• Pulsar polarization: a broad-band population view with the Parkes Ultra-Wideband receiver
• Revisiting the Galactic Double Neutron Star merger and LIGO detection rates
• A supernova remnant association for the fast-moving pulsar PSR J0908-4913
• Pulsar polarimetry with the Parkes Ultra-Wideband receiver
• High-altitude Magnetospheric Emissions from Two Pulsars
• The Curious Case of Twin Fast Radio Bursts: Evidence for Neutron Star Origin?
• The Relativistic Spin Precession in the Compact Double Neutron Star System PSR~J1946+2052
• Role of Fan Beam Model in Population Synthesis of Isolated Radio Pulsars
• Source of circular polarization in radio pulsars
• Simulations of the radio polarization of a precessing pulsar PSR J1906+0746
• Imprint of magnetic obliquity in apparent spin-down of radio pulsars
• Evidence for the spin-kick alignment of pulsars from the statistics of their magnetic inclinations
• Investigation of individual pulse emission behaviours from pulsar J1741$-$0840
• General relativistic effects on pulsar radiation
• Origin of radio polarization in pulsar polar caps
• Triple trouble with PSR J1618-3921: Mass measurements and orbital dynamics of an eccentric millisecond pulsar
• Radio timing constraints on the mass of the binary pulsar PSR J1528-3146
• Main and interpulse interaction in PSRs J1842+0358 and J1926+0737: evidence for interpole communication