1 code implementation • 13 May 2020 • Arrykrishna Mootoovaloo, Alan F. Heavens, Andrew H. Jaffe, Florent Leclercq
Much larger gains will come with future data, where with MOPED compression, the speed up can be up to a factor of $\sim 10^3$ when the common Limber approximation is used.
Cosmology and Nongalactic Astrophysics
1 code implementation • 10 Mar 2020 • Florent Leclercq, Baptiste Faure, Guilhem Lavaux, Benjamin D. Wandelt, Andrew H. Jaffe, Alan F. Heavens, Will J. Percival, Camille Noûs
Existing cosmological simulation methods lack a high degree of parallelism due to the long-range nature of the gravitational force, which limits the size of simulations that can be run at high resolution.
Cosmology and Nongalactic Astrophysics Instrumentation and Methods for Astrophysics
no code implementations • 24 Jul 2019 • Daniel M. Jones, Alan F. Heavens
Future cosmological galaxy surveys such as the Large Synoptic Survey Telescope (LSST) will photometrically observe very large numbers of galaxies.
Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies
1 code implementation • 5 Oct 2018 • Niall Jeffrey, Alan F. Heavens, Philip D. Fortio
We use Dataflow Engines (DFE) to construct an efficient Wiener filter of noisy and incomplete image data, and to quickly draw probabilistic samples of the compatible true underlying images from the Wiener posterior.
Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics
1 code implementation • 8 Aug 2018 • Daniel M. Jones, Alan F. Heavens
Photometric redshifts are necessary for enabling large-scale multicolour galaxy surveys to interpret their data and constrain cosmological parameters.
Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies
