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Parkes observations for project P996 semester 2018OCTS_19
We propose to measure the polarisation of ~200 pulsars (~100 this semester) using the Ultra-Wideband Low (UWL) receiver to investigate the structure of the Galactic disk magnetic field in and between distant spiral arms. Previous Parkes pulsar observations have revealed field reversals in nearby arm and interarm regions. We wish to exploit the grea... moreter sensitivity of the UWL receiver to extend this to more distant regions, thereby allowing us to distinguish more clearly between different models for the structure of the disk field. This work will have important implications for theories for the generation of Galactic magnetic fields and for other areas, e.g., cosmic-ray physics, which depend on a knowledge of the large-scale Galactic magnetic field for their interpretation. less
Astronomical and Space Sciences not elsewhere classified
01 Oct 2018
01 Apr 2019
Creative Commons Attribution 4.0 International Licence
Han, Jinlin; Manchester, Dick; Hobbs, George; van Straten, Willem (2018): Parkes observations for project P996 semester 2018OCTS_19. v1. CSIRO. Data Collection.
All Rights (including copyright) CSIRO 2018.
The metadata and files (if any) are available to the public.
Australia Telescope National Facility
P996 - Magnetic field reversals in distant spiral arms
The Parkes radio telescope has found nearly two-thirds of the known pulsars. These pulsars are widely distributed in our Galaxy, making them valuable probes of the Galactic interstellar medium. In particular, measurements of the polarisation of pulsar radio emission allows measurement of Faraday rotation in the interstellar medium and hence the str... moreength and direction of the Galactic magnetic field. We propose to extend earlier work to reveal magnetic field structures in more distant regions of the Galaxy by exploiting the wide bandwidth and high sensitivity of the newly installed Ultra-Wideband Low receiver. less
Willem van Straten
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