PSR B0809+74: Understanding Its Perplexing Subpulse-separation (P2) Variations

Abstract

The longitude separation between adjacent drifting subpulses, $P_2$, is roughly constant for many pulsars. It was then perplexing when pulsar B0809+74 was found to exhibit substantial variations in this measure, both with wavelength and with longitude position within the pulse window. We analyze these variations between 40 and 1400 MHz, and we show that they stem primarily from the incoherent superposition of the two orthogonal modes of polarization.

arXiv commentSubmitted for publication Astronomy and Astrophysics

References in corpus (4)

• Null-induced mode changes in PSR B0809+74
• Ellipticity and Deviations from Orthogonality in the Polarization Modes of PSR B0329+54
• The frequency-dependence of drifting subpulse patterns
• Pulsar "Drifting"-Subpulse Polarization: No Evidence for Systematic Polarization-Angle Rotations

Cited by in corpus (7)

• Classification of Subpulse Drifting in Pulsars
• Bistable Profile Illumination in Pulsars B0919+06 & B1859+07
• Differential Frequency-dependent Delay from the Pulsar Magnetosphere
• The frequency-dependent behaviour of subpulse drifting: I. Carousel geometry and emission heights of PSR B0031-07
• B0943+10: low-frequency study of subpulse periodicity in the Bright mode with LOFAR
• Interstellar Plasma Turbulence Spectrum Toward the Pulsars PSR B0809+74 and B0950+08
• Highly polarized components of integrated pulse profiles