Observations of redshift-space distortions in spectroscopic galaxy surveys
offer an attractive method for observing the build-up of cosmological
structure, which depends both on the expansion rate of the Universe and our
theory of gravity. In this paper we present a formalism for forecasting the
constraints on the growth of structure which would arise in an idealized
survey. This Fisher matrix based formalism can be used to study the power and
aid in the design of future surveys.Comment: 7 pages, 5 figures, minor revisions to match version accepted by
MNRA
