Planck 2015 results - XIII. Cosmological parameters
- P. Ade, N. Aghanim, A. Zonca
- Physics
- 5 February 2015
This paper presents cosmological results based on full-mission Planck observations of temperature and polarization anisotropies of the cosmic microwave background (CMB) radiation. Our results are in…
MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics
- F. Feroz, M. Hobson, M. Bridges
- Computer Science
- 19 September 2008
The developments presented here lead to further improvements in sampling efficiency and robustness, as compared to the original algorit hm presented in Feroz & Hobson (2008), which itself significantly outperformed existi ng MCMC techniques in a wide range of astrophysical inference problems.
Planck 2013 results. XVI. Cosmological parameters
- P. Ade, N. Aghanim, A. Zonca
- Physics
- 20 March 2013
This paper presents the first cosmological results based on Planck measurements of the cosmic microwave background (CMB) temperature and lensing-potential power spectra. We find that the Planck…
Multimodal nested sampling: an efficient and robust alternative to Markov Chain Monte Carlo methods for astronomical data analyses
Three new methods for sampling and evidence evaluation from distributions that may contain multiple modes and significant degeneracies in very high dimensions are presented, leading to a further substantial improvement in sampling efficiency and robustness and an even more efficient technique for estimating the uncertainty on the evaluated evidence.
Planck 2013 results. I. Overview of products and scientific results
- Planck Collaboration R. Adam, P. Ade, A. Zonca
- Physics
- 20 March 2013
The European Space Agency’s Planck satellite, dedicated to studying the early Universe and its subsequent evolution, was launched 14 May 2009 and has been scanning the microwave and submillimetre sky…
Planck 2013 results. XXII. Constraints on inflation
- P. Ade, N. Aghanim, A. Zonca
- Physics
- 20 March 2013
We present the implications for cosmic inflation of the Planck measurements of the cosmic microwave background (CMB) anisotropies in both temperature and polarization based on the full Planck survey,…
General Relativity: An Introduction for Physicists
- M. Hobson, G. Efstathiou, A. Lasenby
- Physics
- 27 March 2006
1. The spacetime of special relativity 2. Manifolds and coordinates 3. Vector calculus on manifolds 4. Tensor calculus on manifolds 5. Special relativity revisited 6. Electromagnetism 7. The…
Joint analysis of BICEP2/keck array and Planck Data.
- P. Ade, N. Aghanim, A. Zonca
- PhysicsPhysical Review Letters
- 2 February 2015
Strong evidence for dust and no statistically significant evidence for tensor modes is found and various model variations and extensions are probe, including adding a synchrotron component in combination with lower frequency data, and find that these make little difference to the r constraint.
Planck 2015 results. XVII. Constraints on primordial non-Gaussianity
- P. Ade, N. Aghanim, A. Zonca
- Physics
- 5 February 2015
The Planck nominal mission cosmic microwave background (CMB) maps yield unprecedented constraints on primordial non-Gaussianity (NG). Using three optimal bispectrum estimators, separable…
The Arcminute Microkelvin Imager
- A. C. J. T. L. Zwart, R. Barker, G. Yassin
- Physics
- 15 July 2008
The Arcminute Microkelvin Imager is a pair of interferometer arrays operating with six frequency channels spanning 13.9–18.2 GHz, for observations on angular scales of 30 arcsec–10 arcmin and for…
...
...