14 research outputs found
Characterization of the Effect of Solutes on the Water-Binding and Gel Strength Properties of Carrageenan
Ordovician (Bendigonian, Darriwilian to Gisbornian) faunas from the northern Molong Volcanic Belt of central New South Wales
Multipole analysis of redshift-space distortions around cosmic voids
We perform a comprehensive redshift-space distortion analysis based on cosmic
voids in the large-scale distribution of galaxies observed with the Sloan
Digital Sky Survey. To this end, we measure multipoles of the void-galaxy
cross-correlation function and compare them with standard model predictions in
cosmology. Merely considering linear-order theory allows us to accurately
describe the data on the entire available range of scales and to probe
void-centric distances down to about . Common systematics,
such as the Fingers-of-God effect, scale-dependent galaxy bias, and nonlinear
clustering do not seem to play a significant role in our analysis. We constrain
the growth rate of structure via the redshift-space distortion parameter
at two median redshifts,
and , with a precision that is
competitive with state-of-the-art galaxy-clustering results. While the
high-redshift constraint perfectly agrees with model expectations, we observe a
mild deviation at , which increases to when
the data is restricted to the lowest available redshift range of .Comment: 20 pages, 11 figures. Minor fixes, conclusions unchanged. Reflects
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