Speaker
Description
We present new constraints on the $R_h=ct$ cosmological model derived from redshift space distortion (RSD) data. In contrast to the standard $\Lambda$CDM framework, the $R_h=ct$ universe imposes a linear expansion and enforces the condition $R_h=ct$ at all cosmic times, leading to distinct predictions for the growth rate of cosmic structure. Using a comprehensive sample of RSD measurements across a broad range of redshifts, we test the $R_h=ct$ model's viability as an alternative to $\Lambda$CDM by comparing its predictions against observation through statistical inference. Our analysis demonstrates that the $R_h=ct$ universe fails to provide an adequate description of the growth history, yielding a significantly poorer fit than $\Lambda$CDM under standard likelihood analyses. These results highlight the strong constraining power of RSD data and reinforce the conclusion that the $R_h=ct$ model cannot account for the observed dynamics of large-scale structure formation.
