303 citations · 2k across the 35 of their papers we have counts for
8 papers · 1 filter
Stability of multi-field cosmological solutions
Gianluca Calcagni, Andrew R. Liddle
We explore the stability properties of multi-field solutions of assisted inflation type, where several fields collectively evolve to the same configuration. In the case of noninter…
Cosmic microwave anisotropies from BPS semilocal strings
Jon Urrestilla, Neil Bevis, Mark Hindmarsh +2
We present the first ever calculation of cosmic microwave background CMB anisotropy power spectra from semilocal cosmic strings, obtained via simulations of a classical field theor…
The XMM Cluster Survey: The Dynamical State of XMMXCS J2215.9-1738 at z=1.457
Matt Hilton, Chris A. Collins, S. Adam Stanford +12
We present new spectroscopic observations of the most distant X-ray selected galaxy cluster currently known, XMMXCS J2215.9-1738 at z=1.457, obtained with the DEIMOS instrument at…
Nflation: observable predictions from the random matrix mass spectrum
Soo A Kim, Andrew R Liddle
We carry out numerical investigations of the perturbations in Nflation models where the mass spectrum is generated by random matrix theory. The tensor-to-scalar ratio and non-gauss…
The Sunyaev-Zel'dovich temperature of the intracluster medium
Scott T. Kay, Leila C. Powell, Andrew R. Liddle +1
The relativistic Sunyaev-Zel'dovich (SZ) effect offers a method, independent of X-ray, for measuring the temperature of the intracluster medium (ICM) in the hottest systems. Here,…
Comment on `Tainted evidence: cosmological model selection versus fitting', by Eric V. Linder and Ramon Miquel (astro-ph/0702542v2)
Andrew R Liddle, Pier Stefano Corasaniti, Martin Kunz +3
In astro-ph/0702542v2, Linder and Miquel seek to criticize the use of Bayesian model selection for data analysis and for survey forecasting and design. Their discussion is based on…