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The Milliarcsecond Structure of Four Seyfert Galaxies at λ 18 cm

Published online by Cambridge University Press:  19 July 2016

T. Ghosh ,
R.T. Schilizzi ,
G.K. Miley ,
A.G. Debruyn ,
M.J. Kukula ,
A. Pedlar ,
D. Graham  and
D.J. Saikia
T. Ghosh
Affiliation:
(NAIC, PUERTO RICO)
R.T. Schilizzi
Affiliation:
(NFRA, NL)
G.K. Miley
Affiliation:
(LEIDEN, NL)
A.G. Debruyn
Affiliation:
(NFRA, NL)
M.J. Kukula
Affiliation:
(JB, UK)
A. Pedlar
Affiliation:
(JB, UK)
D. Graham
Affiliation:
(MPIFR, GERMANY)
D.J. Saikia
Affiliation:
(NCRA, INDIA)

Extract

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The major contending scenarios capable of explaining various aspects of the Seyfert phenomenon in AGNs are (i) the Super-massive Black-Hole model and (ii) the Starburst model. Detailed optical emission-line and radio images of Seyfert nuclei, and their mutual correlations, provide important clues in evaluating the claims of each. Using the EVN at λ 18 cm, we have mapped four Seyfert galaxies, Mkn 1, 3, 231 and 463 at a resolution of ∼ 25 mas. The maps, and comparisons with images at other wavelengths, will be presented elsewhere (Ghosh et al. 1993, in preparation). Here, we present parameters derived from elliptical-Gaussian fits to all discernible components (Table 1).

Type
Poster Contributions: Radio Emission (Maps)
Information
Symposium - International Astronomical Union , Volume 159: Multi-Wavelength Continuum Emission of AGN , 1994 , pp. 426
Copyright
Copyright © Kluwer 1994 

References

Kukula, M.J., Ghosh, T., Pedlar, A., Schilizzi, R.T., Miley, G.K. deBruyn, A.G., Saikia, D.J., 1993, MNRAS (in Press) Google Scholar