The DRAO 26-m Large Scale Polarization Survey at 1.41 GHz

Details The DRAO 26-m Large Scale Polarization Survey at 1.41 GHz The DRAO 26-m Large Scale Polarization Survey at 1.41 GHz

2004-02-16

arxiv.org/abs/astro-ph/0402365v1

in "The Magnetized Interstellar Medium", eds. B. Uyaniker, W. Reich & R. Wielebinski, Copernicus GmbH, Katlenburg-Lindau, 2004

Astronomy and Astrophysics

Astrophysics

5 pages, 6 figures

Scientific paper

The Effelsberg telescope as well as the DRAO synthesis telescope are currently surveying the Galactic polarized emission at 21 cm in detail. These new surveys reveal an unexpected richness of small-scale structures in the polarized sky. However, observations made with synthesis or single-dish telescopes are not on absolute intensity scales and therefore lack information about the large-scale distribution of polarized emission to a different degree. Until now, absolutely calibrated polarization data from the Leiden/Dwingeloo polarization surveys are used to recover the missing spatial information. However, these surveys cannot meet the requirements of the recent survey projects regarding sampling and noise and new polarization observation were initiated to complement the Leiden/Dwingeloo Survey. In this paper we will outline the observation and report on the progress for a new polarization survey of the northern sky with the 26-m telescope of the DRAO.

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