A&A Supplement series, Vol. 123, June II 1997, 423-444
Received August 23; accepted October 8, 1996
K.-H. Mack - U. Klein - C.P. O'Dea - A.G. Willis
Send offprint request: K.-H. Mack, Bologna address
Radioastronomisches Institut, Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, U.S.A.
Dominion Radio Astrophysical Observatory, P. O. Box 248, Penticton, BC, Canada V2A 6K3, Canada
The giant radio galaxies NGC 315, DA 240, 3C 236, 3C 326, and NGC 6251 have been observed at 92 cm and 49 cm wavelengths with the Westerbork Synthesis Radio Telescope (WSRT) and at , 6.3 cm, and 2.8 cm using the Effelsberg 100-m telescope. These objects all exhibit strong polarized radio emission across the entire radio frequency domain. Their spectral index distributions are very complex, with significant variations across individual objects.
keywords: galaxies: individual: NGC 315; DA 240; 3C 326; 3C 236; NGC 6251; radio continuum: galaxies