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2001MNRAS.327..369T - Mon. Not. R. Astron. Soc., 327, 369-384 (2001/October-3)
MERLIN radio observations of CfA Seyferts.
THEAN A.H.C., GILLIBRAND T.I., PEDLAR A. and KUKULA M.J.
Abstract (from CDS):
Our results can be summarized as follows. Resolved structures as small as 20pc are found in three previously unresolved radio sources, and only four sources show single, unresolved radio components. The mean 1.6 to 8.4GHz spectral index of 31 radio components is alpha=-0.6±0.1 (S∼nualpha), and approximately 25 per cent of the components have a spectral index flatter than alpha=-0.3. The spectral index distributions of type 1 and type 2 Seyferts are statistically indistinguishable. The cores of multiple-component sources tend to have flatter radio spectra than secondary components. The low-resolution infrared (IRAS) emission from Seyfert galaxies is usually dominated by kiloparsec-scale, extranuclear emission regions.
Abstract Copyright: The Royal Astronomical Society
Journal keyword(s): galaxies: active - galaxies: Seyfert - galaxies: statistics - radio continuum: galaxies
CDS comments: Table 1: galaxy 0152+06 = UGC 1395
Simbad objects: 21
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