SIMBAD references

2004ApJ...606.1167R - Astrophys. J., 606, 1167-1173 (2004/May-2)

Effect of quasi-orthogonal emission modes on the rotation measures of pulsars.

RAMACHANDRAN R., BACKER D.C., RANKIN J.M., WEISBERG J.M. and DEVINE K.E.

Abstract (from CDS):

We report here the discovery of a significant source of systematic error in the determinations of pulsar rotation measures. Conventional analysis of high-sensitivity polarimetric observations of PSR B2016+28 display variation in the rotation measure of ±15 rad/m2 (around the mean value of -34.6 rad/m2) across the pulse profile. Analysis of single pulse data shows that this variation is an artifact of the incoherent superposition of quasi-orthogonal polarization modes along with the frequency dependence of relative strength and/or quasi-orthogonality of the modes. Quasi-orthogonal polarization is common among pulsars, and therefore this effect needs to be taken into account in the interpretation of pulsar rotation measures.

Abstract Copyright:

Journal keyword(s): ISM: Magnetic Fields - Polarization - Stars: Pulsars: Individual: Alphanumeric: PSR B2016+28 - Radiation Mechanisms: Nonthermal - Radio Continuum: Stars

Simbad objects: 7

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2019.11.12-23:40:26

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