Degeneracy between primordial tensors modes and cosmic strings in future CMB data from the Planck satellite

Urrestilla, Jon, Mukherjee, Pia, Liddle, Andrew R, Bevis, Neil, Hindmarsh, Mark and Kunz, Martin (2008) Degeneracy between primordial tensors modes and cosmic strings in future CMB data from the Planck satellite. Physical Review D, 77 (12). ISSN 1050-2947

[img]
Preview
PDF - Published Version
Download (220kB) | Preview

Abstract

While observations indicate that the predominant source of cosmic inhomogeneities are adiabatic perturbations, there are a variety of candidates to provide auxiliary trace effects, including inflation-generated primordial tensors and cosmic defects which both produce B-mode cosmic microwave background polarization. We investigate whether future experiments may suffer confusion as to the true origin of such effects, focusing on the ability of Planck to distinguish tensors from cosmic strings, and show that there is no significant degeneracy.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Jon Urrestilla
Date Deposited: 06 Feb 2012 19:32
Last Modified: 07 Mar 2017 02:03
URI: http://sro.sussex.ac.uk/id/eprint/21160

View download statistics for this item

📧 Request an update