Cosmology

Research group

Sub department

About

H0 from an orientation-unbiased sample of Sunyaev-Zel'dovich and X-ray clusters

Monthly Notices of the Royal Astronomical Society 357 (2005) 518-526

Authors:

ME Jones, Kneissl, Ruediger, Grainge, Keith, Pooley, G G
More details from the publisher

A Search for the First Massive Galaxy Clusters

Growing Black Holes: Accretion in a Cosmological Context (2005) 102-107-102-107

Authors:

CJ Willott, D Crampton, JB Hutchings, M Sawicki, L Simard, MJ Jarvis, RJ McLure, WJ Percival
More details from the publisher
Details from ArXiV

A sample of radio galaxies spanning three decades in radio luminosity - An overview

Multiwavelength Mapping of Galaxy Formation and Evolution (2005) 402-403

Authors:

MJ Jarvis, RJ McLure, CJ Willott, S Rawlings, GJ Hill, E Mitchell, J Dunlop
More details from the publisher

Clover experiment: The receiver block

EAS PUBLICATIONS 14 (2005) 245-250

Authors:

G Pisano, PAR Ade, C Calderon, AD Challinor, P De Bernardis, L Dunlop, WK Gear, Y Giraud-Heraud, DJ Goldie, KJB Grainge, KG Isaak, B Johnson, ME Jones, AN Lasenby, B Maffei, PD Mauskopf, SJ Melhuish, A Orlando, L Piccirillo, AC Taylor, S Withington, G Yassin

Abstract:

The ClOVER instrument (described elsewhere in this volume) is being built to measure the B-mode polarisation of the Cosmic Microwave Background. Each of the 256 pixels is made up a pseudo-correlation receiver that can be realised using either waveguide or microstrip technology. In this work we present a design study for a possible waveguide-based solution. Each of the individual components has been optimised using electromagnetic finite-element modelling software (HFSS).
More details from the publisher
More details

Clover: The CMB polarization observer

EAS PUBLICATIONS 14 (2005) 251-256

Authors:

B Maffei, PAR Ade, C Calderon, AD Challinor, P De Bernardis, L Dunlop, WK Gear, Y Giraud-Heraud, DJ Goldie, KJB Grainge, KG Isaak, B Johnson, ME Jones, AN Lasenby, PD Mauskopf, SJ Melhuish, A Orlando, L Piccirillo, G Pisano, AC Taylor, S Withington, G Yassin

Abstract:

We present a new, fully-funded ground-based instrument designed to measure the B-mode polarization of the Cosmic Microwave Background (CMB). The concept is based on three independent subsystems operating at 90, 150 and 220 GHz, each comprising a telescope and a focal plane of horn-coupled background-limited bolometers. This highly-sensitive experiment, planned to be based at Dome C station in Antarctica, is optimised to produce very low systematic effects. It will allow the detection of the CMB polarization over angular multipoles 20 < l < 1000 accurately enough to measure the B-mode signature from gravitational waves to a lensing-confusion-limited tensor-to-scalar ratio r similar to 0.005.
More details from the publisher
More details