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Brightest cluster galaxy profile shapes

Graham, Alister; Lauer, Tod R; Colless, Matthew; Postman, Marc

Description

We model the surface brightness profiles of a sample of 119 Abell brightest cluster galaxies (BCGs), finding a generalized de Vaucouleurs R^1/n^ law, where n is a free parameter, to be appropriate. Departures from the R^1/4^ law are shown to be a real feature of galaxy profiles and not due to observational errors or coupling of n with the other model parameters. BCGs typically have values of n greater than 4. The shape parameter n is shown to correlate with effective half-light radius, such...[Show more]

CollectionsANU Research Publications
Date published: 1996
Type: Journal article
URI: http://hdl.handle.net/1885/40013
http://digitalcollections.anu.edu.au/handle/1885/40013

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