Cosmology
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Ultralight Vector Dark Matter Generates Cosmological GWs via Scalar-Tensor Mixing in Bianchi I Cosmology
Ultralight spin-1 vector dark matter forms a homogeneous background that breaks spatial isotropy, necessitating a Bianchi I geometry. This induces mixing between scalar, vector, and tensor perturbations, with scalar perturbations sourcing tensor modes to produce a stochastic gravitational wave backg…
SciPICal: Calibrating Synthetic Galaxy Catalogs for Cosmological Surveys
SciPICal is an automated pipeline designed to calibrate parameters for generating synthetic galaxy catalogs from cosmological simulations. It improves the accuracy of these mock catalogs, particularly in clustering predictions, for use in validating analysis pipelines and cosmological inference. Thi…