NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-20 T08:37:02 PDT
Help | Comment | NED Home

For refcode 1994A&AS..103..157M:
Retrieve 17 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by European Southern Observatory (ESO). Reproduced by permission
1994A&AS..103..157M High-Frequency radio continuum observations of radio galaxies with low and intermediate luminosity. II. Sources with sizes 4' to 5' K.-H. Mack, L. Gregorini, P. Parma and U. Klein Max-Planck-Institut fur Radioastronomie, Auf dem Hugel 69, D-53121 Bonn, Germany Istituto di Radioastronomia, Via Irnerio 46,40126 Bologna, Italy Dipartimento di Fisica, Universita di Bologna, Via Irnerio 46,40126 Bologna, Italy Radioastronomisches Institut der Universitat, Auf dem Hugel 71, D-53121 Bonn, Germany Received April 26; accepted June 16, 1993 Abstract. - We have mapped 17 low and intermediate luminosity radio galaxies with angular sizes between 4' and 5' using the Effelsberg 100-m telescope. These sources were selected from the B2 and 4C catalogue in an on-going project to study the high-frequency radio continuum and polarization characteristics of such sources. The integrated radio spectra between 408 MHz and 10.6 GHz are found to resemble those of strong 3C sources, the average spectral index being {alpha} = -0.69 +/- 0.02 (S_{nu}_ is proportional to {nu}^{alpha}^). In most of the sources, high degrees of linear polarization are seen, indicating that the magnetic fields in these sources are ordered over large scales. The orientation of the magnetic fields exhibits a clear trend of two preferential direction configurations, viz. parallel and perpendicular to the sources' axes or, equivalently, their jets. Furthermore, the trend for parallel fields to prevail in sources with brighter cores is indicated in our data, despite the small sample of sources involved in this study. Key words: radio continuum: galaxies - polarization - magnetic fields
Retrieve 17 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home