| Article | |
| Report number | arXiv:2106.09713 |
| Title | Cosmology at high redshift — a probe of fundamental physics |
| Author(s) | Sailer, Noah (UC, Berkeley) ; Castorina, Emanuele (Milan U. ; CERN) ; Ferraro, Simone (LBNL, Berkeley ; UC, Berkeley (main)) ; White, Martin (UC, Berkeley ; LBNL, Berkeley) |
| Publication | 2021-12-21 |
| Imprint | 2021-06-17 |
| Number of pages | 62 |
| Note | published in JCAP |
| In: | JCAP 2112 (2021) 049 |
| DOI | 10.1088/1475-7516/2021/12/049 (publication) |
| Subject category | astro-ph.CO ; Astrophysics and Astronomy |
| Abstract | An observational program focused on the high redshift ($2<z<6$) Universe has the opportunity to dramatically improve over upcoming LSS and CMB surveys on measurements of both the standard cosmological model and its extensions. Using a Fisher matrix formalism that builds upon recent advances in Lagrangian perturbation theory, we forecast constraints for future spectroscopic and 21-cm surveys on the standard cosmological model, curvature, neutrino mass, relativistic species, primordial features, primordial non-Gaussianity, dynamical dark energy, and gravitational slip. We compare these constraints with those achievable by current or near-future surveys such as DESI and Euclid, all under the same forecasting formalism, and compare our formalism with traditional linear methods. Our Python code FishLSS $-$ used to calculate the Fisher information of the full shape power spectrum, CMB lensing, the cross-correlation of CMB lensing with galaxies, and combinations thereof $-$ is publicly available. |
| Copyright/License | publication: © 2021-2025 IOP Publishing Ltd and Sissa Medialab preprint: (License: arXiv nonexclusive-distrib 1.0) |
Corresponding record in: Inspire
Record created 2021-07-16, last modified 2024-10-02
