Physics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aps..nws.f1007b&link_type=abstract
American Physical Society, Northwest Section Meeting, May 25-26, 2001 Seattle, Washington Bulletin of the American Physical Soci
Physics
Scientific paper
A number of different attempts have been made to describe the slowing of the rotational rate at the outer edge of a galaxy using different mechanisms. The model outlined in this paper, although based on a number of dynamical simplifications, does not require any special assumptions. An outside observer viewing a galaxy from a great distance will be able to see the frame dragging due to the rotation of the galaxy by noting the slowing down of the rotational rate at the edge of the galaxy. We see that a particle which is dragged to a higher orbit will orbit the centre at a lower rotational velocity. This may explain the slowing of rotation at the outer edge of a galaxy. Although the Lense-Thirring frame dragging is a minute effect, due to a galaxy's size and angular momentum this minute effect is observable at the length and energy scales of such a massive object as a galaxy.
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