Title

Scintillation and Pulsar Timing: Low-level Timing Noise from the Kolmogorov Halo

Abstract

Many systematic effects need to be removed in order to obtain the highest quality pulsar timing data. Interstellar propagation effects may be reduced by employing coherent dedispersion and observing at 1 GHz or above to avoid strong scattering. However, these techniques may not adequately bring propagation effects below the level of other systematic or random errors in the observation. We show that low-level scattering in a Kolmogorov halo produces time delays that are much larger than normally recognized and are time variable. These may be a significant source of noise in some high precision timing efforts.

Publisher

IOP Publishing

Publication Date

1-1-2006

Publication Title

Chinese Journal of Astronomy and Astrophysics

Department

Physics and Astronomy

Document Type

Article

DOI

10.1088/1009-9271/6/S2/34

Language

English

Format

text

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