Radio polarization measurements from RRAT J1819-1458

Abstract

We present the first polarization measurements of the radio emission from RRAT J1819$-$1458. Our observations, conducted in parallel to regular timing sessions, have yielded a small number of bright and polarized pulses. The polarization characteristics and integrated profile resemble those of normal pulsars with average spin-down energy (Edot): moderate to low linear polarization in the integrated profile despite relatively high polarization in the individual pulses. On average, a small degree of circular polarization is also observed. The polarization position angle executes a remarkably smooth, steep S-shaped curve, interrupted by two orthogonal jumps. Based on the shape of the PA swing, we place some constraints on the emission geometry. We compare these polarization properties to those of other radio emitting neutron star populations, including young pulsars, pulsars with a high surface magnetic field and radio emitting magnetars. From the polarization measurements, the Faraday rotation measure of this RRAT is derived.

Accepted for publication in MNRAS letters

References in corpus (11)

• A periodically active pulsar giving insight into magnetospheric physics
• Transient pulsed radio emission from a magnetar
• Profile and polarization characteristics of energetic pulsars
• The magnetar 1E 1547.0-5408: radio spectrum, polarimetry, and timing
• Is pulsar B0656+14 a very nearby RRAT source?
• Polarized radio emission from a magnetar
• An empirical model for the beams of radio pulsars
• Polarized radio emission from the magnetar XTE J1810-197
• Discovery of Pulsations and a Possible Spectral Feature in the X-ray Emission from Rotating Radio Transient J1819-1458
• Multi-frequency integrated profiles of pulsars
• Timing observations of RRAT J1819-1458 at Urumqi Observatory

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• Two radio-emission mechanisms in PSR J0901-4624
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• Polarized radio emission of RRAT J1854+0306