The photometric properties of brightest cluster galaxies. II - SIT and CCD surface photometry

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Astronomical Photometry, Cosmology, Galactic Clusters, Galactic Structure, Luminous Intensity, Charge Coupled Devices, Evolution (Development), Galactic Evolution, Galactic Nuclei, Kinetic Friction, Red Shift, Tables (Data), Vidicons

Scientific paper

Surface photometry of the first-ranked galaxy in 108 Abell clusters is presented. Galaxy structure, as parameterized by simple Hubble law models, is found to correlate with galaxy absolute magnitude and cluster structure. All the structure data support the dynamical friction evolution model. Twenty-eight percent of the galaxies have multiple component nuclei; the short lifetimes of such systems provide the best available evidence that ongoing evolution actually occurs. Average magnitude and structure evolution rates are derived from the data.

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