2 code implementations • 30 Nov 2020 • Christian Pedersen, Andreu Font-Ribera, Keir K. Rogers, Patrick McDonald, Hiranya V. Peiris, Andrew Pontzen, Anže Slosar
Our emulator is appropriate for cosmologies in which the linear matter power spectrum is described to percent level accuracy by just an amplitude and slope across the epoch of interest, and in the regime probed by eBOSS/DESI data.
Cosmology and Nongalactic Astrophysics
1 code implementation • 6 Feb 2009 • Patrick McDonald, Arabindo Roy
On very large scales, density fluctuations in the Universe are small, suggesting a perturbative model for large-scale clustering of galaxies (or other dark matter tracers), in which the galaxy density is written as a Taylor series in the local mass density, delta, with the unknown coefficients in the series treated as free "bias" parameters.
Cosmology and Nongalactic Astrophysics
