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The CfA Seyfert Sample at 8.4 GHz

Published online by Cambridge University Press:  19 July 2016

Marek J. Kukula
Affiliation:
NRAL, University of Manchester, Jodrell Bank, Nr Macclesfield, Cheshire SK11 9DL, UK
Alan Pedlar
Affiliation:
NRAL, University of Manchester, Jodrell Bank, Nr Macclesfield, Cheshire SK11 9DL, UK
S. Baum
Affiliation:
STScI, 3700 San Martin Drive, Baltimore MD21218, USA
C. O'Dea
Affiliation:
STScI, 3700 San Martin Drive, Baltimore MD21218, USA
S. Unger
Affiliation:
RGO, Madingley Road, Cambridge CB3 0EZ, UK

Extract

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Increasingly, the evidence from optical and infra–red wavebands suggests that the difference between Seyfert 1 and Seyfert 2 nuclei is due largely to orientation effects rather than intrinsic differences between the two classes, but the evidence from radio observations has been less clear–cut. We have observed the CfA Seyfert Sample at 8.4 GHz using the VLA in A– and C–configurations. At this frequency our A–array maps have a resolution of 0.25″ – much higher than those achieved in previous surveys – whilst the 3″ C–array beam is ideal for measuring the total radio flux of the active nucleus. The 1–sigma noise in both sets of observations was 70 μJy.

Type
Poster contributions: Statistical Studies and Evolution
Copyright
Copyright © Kluwer 1994