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Title: CMB distortions from damping of acoustic waves produced by cosmic strings

We study diffusion damping of acoustic waves in the photon-baryon fluid due to cosmic strings, and calculate the induced μ- and y-type spectral distortions of the cosmic microwave background. For cosmic strings with tension within current bounds, their contribution to the spectral distortions is subdominant compared to the distortions from primordial density perturbations.
Authors:
; ;  [1]
  1. Physics Department, Arizona State University, Tempe, Arizona 85287 (United States)
Publication Date:
OSTI Identifier:
22282727
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2013; Journal Issue: 08; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTROPHYSICS; BARYONS; COMPARATIVE EVALUATIONS; COSMOLOGY; DAMPING; DENSITY; PERTURBATION THEORY; PHOTONS; RELICT RADIATION; SOUND WAVES; STRING MODELS