Halo model approach for the 21-cm power spectrum at cosmic dawn
Aurel Schneider, Sambit K. Giri, Jordan Mirocha
Abstract
This paper proposes a new analytical approach to explore the 21 cm signal from the cosmic dawn, based on the halo model, which allows for a fast evaluation of the signal. This study complements previous semi-numerical techniques and raises hopes of the complete reliability of inference, given very efficient halo models of the cosmic dawn.
Topics & Concepts
HaloCOSMIC cancer databaseSpectral densityReliability (semiconductor)Spectrum (functional analysis)SIGNAL (programming language)Cosmic rayPhysicsAstrophysicsPower (physics)InferenceComputer scienceAstronomyGalaxyArtificial intelligenceTelecommunicationsQuantum mechanicsProgramming languageRadio Astronomy Observations and TechnologyAstrophysics and Cosmic PhenomenaRadio Wave Propagation Studies