Primordial black holes and associated gravitational waves in axion monodromy inflation

Autor: Kin-Wang Ng, Shu Lin Cheng, Wolung Lee
Rok vydání: 2018
Předmět:
Zdroj: Journal of Cosmology and Astroparticle Physics. 2018:001-001
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2018/07/001
Popis: In the axion monodromy inflation, the inflation is driven by the axion with super-Planckian field values in a monomial potential with superimposed sinusoidal modulations. The coupling of the axion to massless gauge fields can induce copious particle production during inflation, resulting in large non-Gaussian curvature perturbation that leads to the formation of primordial black holes. In this paper, we explore the parameter space in the axion monodromy inflation model that favors the formation of primordial black holes with masses ranging from $10^8$ grams to $20$ solar masses. We also study the associated gravitational waves and their detection in pulsar timing arrays and interferometry experiments.
13 figures, matches the publicized version
Databáze: OpenAIRE