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Extended Polarized Emission Structures in the Galactic Plane at 11 cm Wavelength

Published online by Cambridge University Press:  19 July 2016

N. Junkes ,
E. Fürst  and
W. Reich
N. Junkes
Affiliation:
Max–Planck–Institut für Radioastronomie, Auf dem Hügel 69, D-5300 Bonn 1, Fed. Rep. of Germany
E. Fürst
Affiliation:
Max–Planck–Institut für Radioastronomie, Auf dem Hügel 69, D-5300 Bonn 1, Fed. Rep. of Germany
W. Reich
Affiliation:
Max–Planck–Institut für Radioastronomie, Auf dem Hügel 69, D-5300 Bonn 1, Fed. Rep. of Germany

Abstract

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Data from the Effelsberg Galactic plane survey at 11 cm wavelength have been used to produce a survey of polarized intensity in the first Galactic quadrant. Besides polarized sources (Supernova remnants and extragalactic objects) extended polarized emission features are visible, which are not connected to distinct radio sources. To decide whether these features reflect characteristics of the local field or the distant spiral structure of the Galaxy we performed an integration of polarized intensities as a function of Galactic longitude. An anticorrelation with the thermal background component suggests a distance of more than 6 kpc for some components of the polarized emission. This enables us to derive an upper limit for the uniform component of the Galactic magnetic field.

Type
2. The Magnetic Field Structure of the Milky Way: The Meeting of Observation and Theory
Information
Symposium - International Astronomical Union , Volume 140: Galactic and Intergalactic Magnetic Fields , 1990 , pp. 63 - 64
Copyright
Copyright © Kluwer 1990 

References

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