Exploring Cosmic Origins with CORE: Cosmological Parameters
Abstract
We forecast the main cosmological parameter constraints achievable with the CORE space mission which is dedicated to mapping the polarisation of the Cosmic Microwave Background (CMB). CORE was recently submitted in response to ESA's fifth call for medium-sized mission proposals (M5). Here we report the results from our pre-submission study of the impact of various instrumental options, in particular the telescope size and sensitivity level, and review the great, transformative potential of the mission as proposed. Specifically, we assess the impact on a broad range of fundamental parameters of our Universe as a function of the expected CMB characteristics, with other papers in the series focusing on controlling astrophysical and instrumental residual systematics. In this paper, we assume that only a few central CORE frequency channels are usable for our purpose, all others being devoted to the cleaning of astrophysical contaminants. On the theoretical side, we assume LCDM as our general framework and quantify the improvement provided by CORE over the current constraints from the Planck 2015 release. We also study the joint sensitivity of CORE and of future Baryon Acoustic Oscillation and Large Scale Structure experiments like DESI and Euclid. Specific constraints on the physics of inflation are presented in another paper of the series. In addition to the six parameters of the base LCDM, which describe the matter content of a spatially flat universe with adiabatic and scalar primordial fluctuations from inflation, we derive the precision achievable on parameters like those describing curvature, neutrino physics, extra light relics, primordial helium abundance, dark matter annihilation, recombination physics, variation of fundamental constants, dark energy, modified gravity, reionization and cosmic birefringence. (ABRIDGED)
Keywords
Cite
@article{arxiv.1612.00021,
title = {Exploring Cosmic Origins with CORE: Cosmological Parameters},
author = {Eleonora Di Valentino and Thejs Brinckmann and Martina Gerbino and Vivian Poulin and François R. Bouchet and Julien Lesgourgues and Alessandro Melchiorri and Jens Chluba and Sebastien Clesse and Jacques Delabrouille and Cora Dvorkin and Francesco Forastieri and Silvia Galli and Deanna C. Hooper and Massimiliano Lattanzi and Carlos J. A. P. Martins and Laura Salvati and Giovanni Cabass and Andrea Caputo and Elena Giusarma and Eric Hivon and Paolo Natoli and Luca Pagano and Simone Paradiso and Jose Alberto Rubino-Martin and Ana Achucarro and Peter Ade and Rupert Allison and Frederico Arroja and Marc Ashdown and Mario Ballardini and A. J. Banday and Ranajoy Banerji and Nicola Bartolo and James G. Bartlett and Soumen Basak and Jochem Baselmans and Daniel Baumann and Paolo de Bernardis and Marco Bersanelli and Anna Bonaldi and Matteo Bonato and Julian Borrill and François Boulanger and Martin Bucher and Carlo Burigana and Alessandro Buzzelli and Zhen-Yi Cai and Martino Calvo and Carla Sofia Carvalho and Gabriella Castellano and Anthony Challinor and Ivan Charles and Ivan Colantoni and Alessandro Coppolecchia and Martin Crook and Giuseppe D'Alessandro and Marco De Petris and Gianfranco De Zotti and Josè Maria Diego and Josquin Errard and Stephen Feeney and Raul Fernandez-Cobos and Simone Ferraro and Fabio Finelli and Giancarlo de Gasperis and Ricardo T. Génova-Santos and Joaquin González-Nuevo and Sebastian Grandis and Josh Greenslade and Steffen Hagstotz and Shaul Hanany and Will Handley and Dhiraj K. Hazra and Carlos Hernández-Monteagudo and Carlos Hervias-Caimapo and Matthew Hills and Kimmo Kiiveri and Ted Kisner and Thomas Kitching and Martin Kunz and Hannu Kurki-Suonio and Luca Lamagna and Anthony Lasenby and Antony Lewis and Michele Liguori and Valtteri Lindholm and Marcos Lopez-Caniego and Gemma Luzzi and Bruno Maffei and Sylvain Martin and Enrique Martinez-Gonzalez and Silvia Masi and Darragh McCarthy and Jean-Baptiste Melin and Joseph J. Mohr and Diego Molinari and Alessandro Monfardini and Mattia Negrello and Alessio Notari and Alessandro Paiella and Daniela Paoletti and Guillaume Patanchon and Francesco Piacentini and Michael Piat and Giampaolo Pisano and Linda Polastri and Gianluca Polenta and Agnieszka Pollo and Miguel Quartin and Mathieu Remazeilles and Matthieu Roman and Christophe Ringeval and Andrea Tartari and Maurizio Tomasi and Denis Tramonte and Neil Trappe and Tiziana Trombetti and Carole Tucker and Jussi Väliviita and Rien van de Weygaert and Bartjan Van Tent and Vincent Vennin and Gérard Vermeulen and Patricio Vielva and Nicola Vittorio and Karl Young and Mario Zannoni},
journal= {arXiv preprint arXiv:1612.00021},
year = {2019}
}
Comments
90 pages, 25 Figures. Revised version with new authors list and references