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Frank van den Bosch

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Galactic Conformity<br />

Satellite galaxies ‘adjust’ themselves to properties of their central galaxy:<br />

late type ‘centrals’ have preferentially late type satellites, and vice versa.<br />

This has been noticed before based on small samples of loose groups<br />

(Wirth 1983; Ramella et al. 1987; Osmond & Ponmon 2004).<br />

Our results indicate that this Galactic Conformity is present over large<br />

ranges in luminosity and halo mass. (Weinmann, vdB, Yang & Mo, 2005)

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