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J. A. Murphy

Researcher at Maynooth University

Publications -  244
Citations -  45569

J. A. Murphy is an academic researcher from Maynooth University. The author has contributed to research in topics: Cosmic microwave background & Planck. The author has an hindex of 87, co-authored 238 publications receiving 42760 citations. Previous affiliations of J. A. Murphy include National University of Ireland.

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QUBIC II: Spectro-Polarimetry with Bolometric Interferometry

L. Mousset, +130 more
TL;DR: In this article, the point spread function as a function of frequency was characterized for point source reconstruction and Galactic dust mapping using the Q \& U Bolometric Interferometer for Cosmology (QUBIC) and the authors concluded that spectro-imaging performance is nearly optimal up to five sub-bands in the case of QUBIC.

QUBIC VII: The feedhorn-switchsystem of the technologicaldemonstrator

Francesco Cavaliere, +129 more
TL;DR: In this article, the design, manufacturing and performance of the horn-switch system developed for the technological demonstrator of QUBIC (the $Q$\&$U$ Bolometric Interferometer for Cosmology).
Journal ArticleDOI

The Gaussian beam mode analysis of off-axis aberrations in long wavelength optical systems

TL;DR: In this article, a matrix-based scheme using Gaussian beam mode analysis (GBMA) for predicting aberrations from off-axis mirrors is presented. But the accuracy of these scalar GBMA predictions is limited.
Proceedings ArticleDOI

Simulations and performance of the QUBIC optical beam combiner

Créidhe O'Sullivan, +130 more
- 09 Jul 2018 - 
TL;DR: The Q & U Bolometric Interferometer for Cosmology (QUBIC) is a ground-based instrument that aims to measure the extremely faint B-mode polarisation anisotropy of the cosmic microwave background at intermediate angular scales.