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Beyond Precision Cosmology: dealing with Systematic Errors

Total Cost €


EC-Contrib. €






Project "BePreSysE" data sheet

The following table provides information about the project.


Organization address
postcode: 8007

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Spain [ES]
 Total cost 1˙835˙220 €
 EC max contribution 1˙835˙220 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-COG
 Funding Scheme ERC-COG
 Starting year 2017
 Duration (year-month-day) from 2017-06-01   to  2022-05-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITAT DE BARCELONA ES (BARCELONA) coordinator 1˙835˙220.00


 Project objective

Over the past 20 years cosmology has made the transition to a precision science: the standard cosmological model has been established and its parameters are now measured with unprecedented precision. But precision is not enough: accuracy is also crucial. Accuracy accounts for systematic errors which can be both on the observational and on the theory/modelling side (and everywhere in between). While there is a well-defined and developed framework for treating statistical errors, there is no established approach for systematic errors. The next decade will see the era of large surveys; a large coordinated effort of the scientific community in the field is on-going to map the cosmos producing an exponentially growing amount of data. This will shrink the statistical errors, making mitigation and control of systematics of the utmost importance. While there are isolated and targeted efforts to quantify systematic errors and propagate them through all the way to the final results, there is no well-established, self-consistent methodology. To go beyond precision cosmology and reap the benefits of the forthcoming observational program, a systematic approach to systematics is needed. Systematics should be interpreted in the most general sense as shifts between the recovered measured values and true values of physical quantities. I propose to develop a comprehensive approach to tackle systematic errors with the goal to uncover and quantify otherwise unknown differences between the interpretation of a measurement and reality. This will require to fully develop, combine and systematize all approaches proposed so far (many pioneered by the PI), develop new ones to fill the gaps, study and explore their interplay and finally test and validate the procedure. Beyond Precision Cosmology: Dealing with Systematic Errors (BePreSysE) will develop a framework to deal with systematics in forthcoming Cosmological surveys which, could, in principle, be applied beyond Cosmology.


year authors and title journal last update
List of publications.
2020 Krishna Naidoo, Lorne Whiteway, Elena Massara, Davide Gualdi, Ofer Lahav, Matteo Viel, Héctor Gil-Marín, Andreu Font-Ribera
Beyond two-point statistics: using the minimum spanning tree as a tool for cosmology
published pages: 1709-1726, ISSN: 0035-8711, DOI: 10.1093/mnras/stz3075
Monthly Notices of the Royal Astronomical Society 491/2 2020-01-30
2018 Nicola Bellomo, Nicola Bartolo, Raul Jimenez, Sabino Matarrese, Licia Verde
Measuring the energy scale of inflation with large scale structures
published pages: 043-043, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/11/043
Journal of Cosmology and Astroparticle Physics 2018/11 2020-01-30
2018 Michele Moresco, Raul Jimenez, Licia Verde, Lucia Pozzetti, Andrea Cimatti, Annalisa Citro
Setting the Stage for Cosmic Chronometers. I. Assessing the Impact of Young Stellar Populations on Hubble Parameter Measurements
published pages: 84, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aae829
The Astrophysical Journal 868/2 2020-01-30
2019 Keir K. Rogers, Hiranya V. Peiris, Andrew Pontzen, Simeon Bird, Licia Verde, Andreu Font-Ribera
Bayesian emulator optimisation for cosmology: application to the Lyman-alpha forest
published pages: 031-031, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2019/02/031
Journal of Cosmology and Astroparticle Physics 2019/02 2020-01-30
2019 Raul Jimenez, Andrea Cimatti, Licia Verde, Michele Moresco, Benjamin Wandelt
The local and distant Universe: stellar ages and H 0
published pages: 043-043, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2019/03/043
Journal of Cosmology and Astroparticle Physics 2019/03 2020-01-30
2019 David Valcin, Francisco Villaescusa-Navarro, Licia Verde, Alvise Raccanelli
BE-HaPPY: bias emulator for halo power spectrum including massive neutrinos
published pages: 057-057, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2019/12/057
Journal of Cosmology and Astroparticle Physics 2019/12 2020-01-30
2019 Alba Kalaja, Nicola Bellomo, Nicola Bartolo, Daniele Bertacca, Sabino Matarrese, Ilia Musco, Alvise Raccanelli, Licia Verde
From primordial black holes abundance to primordial curvature power spectrum (and back)
published pages: 031-031, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2019/10/031
Journal of Cosmology and Astroparticle Physics 2019/10 2020-01-30
2018 Giulio Scelfo, Nicola Bellomo, Alvise Raccanelli, Sabino Matarrese, Licia Verde
GW×LSS: chasing the progenitors of merging binary black holes
published pages: 039-039, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/09/039
Journal of Cosmology and Astroparticle Physics 2018/09 2020-01-30
2019 Raul Jimenez, Roy Maartens, Ali Rida Khalifeh, Robert R. Caldwell, Alan F. Heavens, Licia Verde
Measuring the homogeneity of the universe using polarization drift
published pages: 048-048, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2019/05/048
Journal of Cosmology and Astroparticle Physics 2019/05 2020-01-30
2019 Simeon Bird, Keir K. Rogers, Hiranya V. Peiris, Licia Verde, Andreu Font-Ribera, Andrew Pontzen
An emulator for the Lyman-α forest
published pages: 050-050, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2019/02/050
Journal of Cosmology and Astroparticle Physics 2019/02 2020-01-30
2018 Nicola Bellomo, José Luis Bernal, Alvise Raccanelli, Licia Verde
Primordial black holes as dark matter: converting constraints from monochromatic to extended mass distributions
published pages: 004-004, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/01/004
Journal of Cosmology and Astroparticle Physics 2018/01 2019-05-14
2018 Raul Jimenez, Licia Verde, Thomas D Kitching
Implications for the missing low-mass galaxies (satellites) problem from cosmic shear
published pages: L86-L90, ISSN: 1745-3933, DOI: 10.1093/mnrasl/sly101
Monthly Notices of the Royal Astronomical Society: Letters 479/1 2019-05-14
2018 B Kalus, W J Percival, D J Bacon, E-M Mueller, L Samushia, L Verde, A J Ross, J L Bernal
A map-based method for eliminating systematic modes from galaxy clustering power spectra with application to BOSS
published pages: 453-470, ISSN: 0035-8711, DOI: 10.1093/mnras/sty2655
Monthly Notices of the Royal Astronomical Society 482/1 2019-05-14
2018 Dionysios Karagiannis, Andrei Lazanu, Michele Liguori, Alvise Raccanelli, Nicola Bartolo, Licia Verde
Constraining primordial non-Gaussianity with bispectrum and power spectrum from upcoming optical and radio surveys
published pages: 1341-1376, ISSN: 0035-8711, DOI: 10.1093/mnras/sty1029
Monthly Notices of the Royal Astronomical Society 478/1 2019-05-14
2018 Bartolo, Nicola; Bianco, Domenico Matteo; Jimenez, Raul; Matarrese, Sabino; Verde, Licia
Supergravity, $alpha$-attractors and primordial non-Gaussianity
published pages: , ISSN: , DOI:
1 2019-05-14
2017 José Luis Bernal, Nicola Bellomo, Alvise Raccanelli, Licia Verde
Cosmological implications of primordial black holes
published pages: 052-052, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2017/10/052
Journal of Cosmology and Astroparticle Physics 2017/10 2019-05-14
2018 Moresco, Michele; Jimenez, Raul; Verde, Licia; Pozzetti, Lucia; Cimatti, Andrea; Citro, Annalisa
Setting the stage for cosmic chronometers I. Minimizing frosting with an optimized selection of cosmic chronometers
published pages: , ISSN: , DOI:
2 2019-05-14
2018 Raul Jimenez, Alvise Raccanelli, Licia Verde, Sabino Matarrese
Peering beyond the horizon with standard sirens and redshift drift
published pages: 002-002, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/04/002
Journal of Cosmology and Astroparticle Physics 2018/04 2019-05-14
2018 Alvise Raccanelli, Francesca Vidotto, Licia Verde
Effects of primordial black holes quantum gravity decay on galaxy clustering
published pages: 003-003, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/08/003
Journal of Cosmology and Astroparticle Physics 2018/08 2019-05-14
2018 José Luis Bernal, Alvise Raccanelli, Licia Verde, Joseph Silk
Signatures of primordial black holes as seeds of supermassive black holes
published pages: 017-017, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/05/017
Journal of Cosmology and Astroparticle Physics 2018/05 2019-05-14

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