Relativity and Cosmology


Where Does Universal Expansion Equal Gravitational Attraction?

Authors: Chris O'Loughlin

A comparison of the attractive motion experienced by masses due to gravitational interaction over relatively short distances with the recessional motion of masses at relatively large distances (that adhere to the velocity increases described by Hubble's v = Hr relation) is presented to demonstrate the similarities between the two motions. Based on the similarities of the two motions, and the observation that gravitational acceleration decreases as distance increases while recessional acceleration decreases as distance decreases the distance at which the two accelerations are equal in magnitude but in opposite directions resulting in zero net acceleration is calculated and compared to similar results provided by Chernin et al. [1]. The summation of the attractive gravitational acceleration and the recessional acceleration is presented and plotted depicting a smooth, continuous transition from gravitational attraction to universal expansion. The underlying cause of these accelerations is not addressed.

Comments: 9 pages

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Submission history

[v1] 21 May 2010
[v2] 24 Jun 2010

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