English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We present the results of reconstruction analysis of the galaxy distributionin a spherical region of radius 50 Mpc/h centered on the Local Group, as mappedby the IRAS Point Source Catalog Redshift Survey (PSCz). We reconstruct itusing 15 different models for structure formation in the universe, eachconsisting of a set of assumptions regarding the value of the density parameterOmega_m, and the amplitude and nature of the biasing between IRAS galaxies andmass. For every model, we also reconstruct ten mock PSCz catalogs derived fromthe outputs of numerical simulations that have the appropriate assumptionsabout Omega_m and bias. We use a variety of statistics to compare the accuracyof each reconstruction of the PSCz catalog to the accuracy expected based onthe corresponding mock catalog reconstructions. We find that gravitationalinstability of Gaussian mass density fluctuations can account for the galaxydistribution in the PSCz catalog, at least for some plausible assumptions aboutthe value of Omega_m and the bias. Unbiased models in which IRAS galaxies tracemass fail to reconstruct the PSCz catalog accurately, both for Omega_m=0.4 andfor Omega_m=1. Low Omega_m models in which IRAS galaxies are antibiased withrespect to the mass are the most successful in reconstructing the PSCz catalog.In particular, a model with Omega_m=0.4 and IRAS galaxies related to the massaccording to the predictions of a semi-analytic galaxy formation model is verysuccessful in reconstructing the PSCz galaxy distribution.Comment: 50 pages including 13 Figures and 2 Tables, submitted to Ap

Reconstruction Analysis of theIRASPoint Source Catalog Redshift Survey