Browsing by Author "Kunz, Martin"

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      Fitting BICEP2 with defects, primordial gravitational waves and dust 

      Lizarraga Olano, Joanes ORCID; Urrestilla Urizabal, Jon ORCID; Daverio, David; Hindmarsh, Mark; Kunz, Martin; Liddle, Andrew R. (IOP Publishing, 2015)
      In this work we discuss the possibility of cosmic defects being responsible for the B-mode signal measured by the BICEP2 collaboration. We also allow for the presence of other cosmological sources of B-modes such as ...
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      Type I Abelian Higgs strings: evolution and Cosmic Microwave Background constraints 

      Hindmarsh, Mark; Lizarraga Olano, Joanes ORCID; Urrestilla Urizabal, Jon ORCID; Daverio, David; Kunz, Martin (APS, 2019-04-26)
      We present results from the first simulations of networks of Type I Abelian Higgs cosmic strings to include both matter and radiation eras and cosmic microwave background (CMB) constraints. In Type I strings, the string ...