A 5 cm (6 GHz) Multi-beam Radio-Continuum Survey of the Galactic Plane -- Pilot Observations

Details A 5 cm (6 GHz) Multi-beam Radio-Continuum Survey of the Galactic Plane -- Pilot Observations A 5 cm (6 GHz) Multi-beam Radio-Continuum Survey of the Galactic Plane -- Pilot Observations

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006atnf.prop..607f&link_type=abstract

ATNF proposal P537, Semester: October, 2006

Physics

Galactic, Mag Clouds, Extragalactic, Parkes

Scientific paper

Basic information about the structure of magnetic fields in our own and nearby galaxies can be extracted directly from radio-continuum surveys taken at two orthogonal polarizations. Recent surveys reveal magnetic structures along the Galactic plane with no counterpart in total intensity maps. This is first evidence of an intrinsic Galactic magnetic field. Its fingerprint is synchrotron emission, originating from relativistically accelerated electrons trapped in the Galactic magnetic field. They are readily identified by their well known radio spectra. Unfortunately, there is a big gap in available observational data of the Galactic plane between the frequencies 2.4 GHz (12.5 cm) and 22.8 GHz (1.3 cm). This project will fill this gap with a new radio-continuum survey at a wavelength of 5 cm (6-7 GHz) using the new multi-beam receiver at the Parkes Radio Telescope. Simultaneously this project will observe and map large and small scale structures along the Galactic plane caused by non-thermal emission mechanisms such as supernova remnants shells which evolve into chimneys and fountains. This proposal is ONLY for testing time.

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