3 papers
astro-ph.CO2025
Can a multi-tracer approach improve the constraints on the turnover scale at low redshift?
Yan Lai, Cullan Howlett, Tamara Davis
The turnover scale of the power spectrum is related to the size of the particle horizon at the matter-radiation equality, which can be used as a standard ruler to constrain cosmolo…
astro-ph.CO2025
Effective Theories of Redshift-Space Galaxy Peculiar Velocities
Shi-Fan Chen, Cullan Howlett, Yan Lai +1
We present predictions for redshift-space peculiar velocity statistics in the Lagrangian and Eulerian formulations of the effective field theory (EFT) of large-scale structure. We…
astro-ph.CO2023
Faster cosmological analysis with power spectrum without simulations
Yan Lai, Cullan Howlett, Tamara M. Davis
Future surveys could obtain tighter constraints on the cosmological parameters with the galaxy power spectrum than with the Cosmic Microwave Background. However, the inclusion o…