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PIRSA:21030028

Video URL

https://pirsa.org/21030028

Probing Small-Scale Power Spectra with Pulsar Timing Arrays

Mitridate, A. (2021). Probing Small-Scale Power Spectra with Pulsar Timing Arrays . Perimeter Institute for Theoretical Physics. https://pirsa.org/21030028

Andrea Mitridate California Institute of Technology (Caltech)

Talk numberPIRSA:21030028
DOI10.48660/21030028
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Models of Dark Matter (DM) can leave unique imprints on the Universe's small scale structure by boosting density perturbations on small scales. We study the capability of Pulsar Timing Arrays to search for, and constrain, subhalos from such models. The models of DM we consider are ordinary adiabatic perturbations in ΛCDM, QCD axion miniclusters, models with early matter domination, and vector DM produced during inflation.