Where are the Missing Galaxies?

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

There is a very large difference between predicted and observed abundances of luminous galaxies (Navarro et al. 1996). Recent observations show that: (1) At highest redshifts, galaxies show peculiar morphologies and clumpiness; (2) At z ~0.3-1, well formed symmetric spirals are rare, whereas ellipticals are plentiful; and (3) At z ~0, field galaxies are generally spirals. We argue that primordial magnetic fields, such as those predicted by Miranda et al. (1998) and Opher & Wichowski (1997), can explain the missing galaxies and redshift dependence of the morphology of the galaxies.

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