Clumpy medium around distant radio galaxies
The polarization properties of distant 3C radio galaxies with strong nuclear or extended optical emission lines are studied, using radio observations at 6 and 20 cm wavelengths. Rotation-measure variations of magnitude 80-300 radians/sq m are observed on a scale size of about 10-20 kpc. It is found that the depolarization of the radio lobes is strongest when the radio emission is within about 60-100 kpc of the host-galaxy nucleus. The results imply that a clumpy Faraday medium capable of depolarizing the radio emission exists in the host-galaxy environment. 46 references.
- Research Organization:
- Minnesota Univ., Minneapolis (USA); California Univ., Berkeley (USA)
- OSTI ID:
- 6018435
- Journal Information:
- Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 97; ISSN ANJOA
- Country of Publication:
- United States
- Language:
- English
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