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New Data on the Peculiar Galaxy MRK 273

Published online by Cambridge University Press:  12 April 2016

A. S. Asatrian ,
A. R. Petrosian  and
F. Börngen
A. S. Asatrian
Affiliation:
Byurakan Astrophysical Observatory, ARMENIA
A. R. Petrosian
Affiliation:
Byurakan Astrophysical Observatory, ARMENIA
F. Börngen
Affiliation:
Tautenburg Observatory, DDR

Abstract

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On the basis of direct UBV and spectral observations at Tautenburg (DDR) 2m and Special Observatory (USSR) 6m telescopes respectively the colorimetric and spectral investigations of the megamaser galaxy MRK 273 are carried out. It is seen that: MRK 273 is in a physical group of galaxies, which contains at least five members. Two bright central condensations of MRK 273 are Seyfert nuclei. The area of the main body of MRK 273 which contains both Seyfert nuclei and from which comes out a straight tail, is redder than the remaining part of the galaxy. The tail has a pronounced blue color and most probably radiates in [OIII] λ5007 line. Observed radio continuum, OH and HI absorption features are related to bright “a” nucleus of galaxy. We come to the conclusion that MRK 273 which is the member of the group of the galaxies is itself a close system of two objects with AGNs. The tail, with radiation being of thermal origin, probably is the result of the interaction of these galaxies.

Type
III. Observations of Related Objects
Information
International Astronomical Union Colloquium , Volume 124: Paired and Interacting Galaxies , 1990 , pp. 201 - 208
Copyright
Copyright © NASA 1990

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