CMB distortions from damping of acoustic waves produced by cosmic strings

Hiroyuki Tashiro, Eray Sabancilar, Tanmay Vachaspati

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

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.

Original languageEnglish (US)
Article number035
JournalJournal of Cosmology and Astroparticle Physics
Volume2013
Issue number8
DOIs
StatePublished - Aug 1 2013

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Keywords

  • CMBR theory
  • Cosmic strings
  • domain walls
  • monopoles

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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