Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...139...43s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 139, no. 1, Oct. 1984, p. 43-49.
Astronomy and Astrophysics
Astronomy
19
Interstellar Magnetic Fields, Polarization Characteristics, Radio Sources (Astronomy), Radio Spectra, Supernova Remnants, X Ray Sources, Astronomical Maps, Emission Spectra, Thermal Plasmas
Scientific paper
High resolution radio observations of the compact flat spectrum core of CTB 80 are presented and discussed. From the average rotation measure the authors derive the magnetic field direction projected on the plane of the sky. This reveals a component running tangentially along the southern and western periphery of the radio plateau. In addition, there may be a field component directed east-west, roughly parallel to the major axis of the radio structure. The thermal density suggested by the rate of depolarization is sufficient, if the plasma has a temperature of several million degrees, to account for X-ray emission found by the Einstein Observatory. In addition to an extended component, the X-ray map reveals a small scale feature near the edge of the radio plateau which agrees in position with the brightest radio peak. The possible nature of this small scale feature is discussed.
Angerhofer P. E.
Dickel John R.
Strom Richard G.
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