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The Double Nucleus Galaxies MKN 423 and MKN 739

Published online by Cambridge University Press:  12 April 2016

Piero Rafanelli  and
Paolo Marziani
Piero Rafanelli
Affiliation:
Department of Astronomy, University of Padova, Italy
Paolo Marziani
Affiliation:
International School for Advanced Studies, Trieste, Italy

Extract

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Long slit spectroscopy and imaging of Mkn 423 and Mkn 739 have been performed at the 2.2 m and 3.5 m telescopes of the Calar Alto Observatory using both CCD and photographic detectors. Low and medium resolution spectra (1.8Å, 3.5Å, 6.0Å) together with V images have permitted to demonstrate the merging nature of Mkn 423 and the double structure of the NLR of its Seyfert component. This last feature has been found also in the NLR of the Seyfert component of Mkn 739, a double system the two components of which are counterrotating.

Type
III. Observations of Related Objects
Information
International Astronomical Union Colloquium , Volume 124: Paired and Interacting Galaxies , 1990 , pp. 225 - 229
Copyright
Copyright © NASA 1990

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