Angular momentum in the Local Group

Details Angular momentum in the Local Group Angular momentum in the Local Group

Mar 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994esoc...51..209d&link_type=abstract

The Local Group: Comparative and Global Properties, ESO Conference and Workshop Proceedings, Third CTIO/ESO Workshop on The Loca

Astronomy and Astrophysics

Astronomy

Angular Momentum, Interacting Galaxies, Local Group (Astronomy), Trajectory Analysis, Andromeda Galaxy, Galactic Evolution, Milky Way Galaxy, Orbital Mechanics, Spin

Scientific paper

We briefly review models for the Local Group and the acquisition of its angular momentum. We describe early attempts to understand the origin of the spin of the galaxies discussing the hypothesis that the Local Group has little angular momentum. Finally we show that using Peebles' least action principle there should be a rather large amount of orbital angular momentum compared to the magnitude of the spin of its galaxies. Therefore the Local Group cannot be thought as tidally isolated. Using Peebles' trajectories we give a possible set of trajectories for Local Group galaxies which would predict their spin.

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