  We detail a novel theoretical prediction that a geometric torsion model for
scalar field dark matter could lead to oscillations, on readily probeable
timescales, in the time evolution of cosmological redshifts of astronomical
sources with qualitatively distinct behavior at different redshift scales
(larger or smaller than z ~ 0.1). We present an analysis of extant spectroscopy
data from the Australian Dark Energy Survey (OzDES) to assess whether such
signals are present across a wide array of cosmological sources and baseline
redshifts on the six-year timescale of OzDES. While a simple Fourier analysis
of redshift variations weakly identifies some candidate frequencies, and so
further investigation with future cosmological data sets may be warranted, we
have not found compelling empirical evidence for the theory under consideration
in this data set, placing tentative constraints on its free parameters.
