Document Type

Article

Publication Date

11-5-2018

Department

Physics and Astronomy

Abstract

The shape of the orbit of a free particle is examined in Friedmann-Lemaître-Robertson-Walker (FLRW) cosmologies. The spatial projection of the orbit is time-independent and has a simple geometric description. We relate this description to the expression in terms of standard FLRW coordinates.

Publication Title

Journal of Physics Communications

Volume

2

Issue

11

First Page

1

Last Page

5

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