# Rotational axes of galaxies

The disc shape is a preferred form for galaxies due to angular momentum, and the axis of rotation indicates a locally preferred orientation for the angular momentum vector. Why do galaxies in Hubble Ultra Deep Field appear to have random axes of rotation? What scaling laws are in effect here?

• The galaxies in the Hubble Deep Field are very far from each other. For the potential scaling laws in filaments from simulations see e.g. "Review: galactic angular momenta and angular momentum correlations in the cosmological large-scale structure", Bjoern Malte Schaefer. – CuriousOne Mar 13 '16 at 1:32
• The spiral is due to very complex phenomena, not to "angular momentum". But you probably meant "disk-shape", not especially spirals. (Not also that there are a lot of elliptic galaxies). – Fabrice NEYRET Mar 13 '16 at 9:39
• CuriousOne - I read your suggested reference and conclude that it pretty much answers my question. Since you knew the reference I think you should be able to provide a brief answer. – P T Mar 16 '16 at 0:59