Twisting of the isophotes in elliptical galaxies is found to be present in about 7.5% of the systems for which photometric data are available in the literature. It is found that a reverse correlation exists between the maximum apparent flattening and the greatest observed twisting in the isophotes of 54 elliptical galaxies. From a discussion of the data, it is suggested that this correlation can provide useful information on the spatial structure of these galaxies. Some geometrical interpretations are explored.

A correlation between isophotal twisting and flattening in elliptical galaxies

GALLETTA, GIUSEPPE
1980

Abstract

Twisting of the isophotes in elliptical galaxies is found to be present in about 7.5% of the systems for which photometric data are available in the literature. It is found that a reverse correlation exists between the maximum apparent flattening and the greatest observed twisting in the isophotes of 54 elliptical galaxies. From a discussion of the data, it is suggested that this correlation can provide useful information on the spatial structure of these galaxies. Some geometrical interpretations are explored.
1980
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/107117
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