Other
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...311...34l&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 311, Dec. 1, 1986, p. 34-44.
Other
34
Astronomical Photometry, Galactic Clusters, Galactic Nuclei, Astronomical Maps, Galactic Structure, Isophotes, Magnitude, Shock Waves
Scientific paper
The multiple-nucleus cD galaxy NGC 6166 is modelled as the superposition of a central cD (galaxy A) and two low-luminosity elliptical galaxies (B and C). Surface photometry is derived for each of these galaxies by a simultaneous isophote algorithm under the assumption that the morphology of NGC 6166 results from simple line-of-sight superposition of galaxies that have concentric elliptical isophotes but otherwise arbitrary brightness, position angle, and ellipticity profiles. The nuclear dust clouds in galaxy A noted by Burbidge (1962) are clearly visible, the nucleus D noted by Minkowski (1961) appears stellar, and a faint narrow feature is observed between galaxies B and C which may be a dynamical friction wake in the envelope of the cD induced by the passage of galaxy C. There is no other evidence for any faint tidal plumes or any diffuse structures that might indicate mutual interaction between the component galaxies.
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