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Halo modelling SIGNED

Using the halo model to maximise the information gain from forthcoming weak-lensing surveys.

Total Cost €

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EC-Contrib. €

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Partnership

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Project "Halo modelling" data sheet

The following table provides information about the project.

Coordinator
UNIVERSITAT DE BARCELONA 

Organization address
address: GRAN VIA DE LES CORTS CATALANES 585
city: BARCELONA
postcode: 8007
website: http://www.ub.es

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]
 Project website https://www.phas.ubc.ca/
 Total cost 242˙683 €
 EC max contribution 242˙683 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2015
 Funding Scheme MSCA-IF-GF
 Starting year 2017
 Duration (year-month-day) from 2017-09-01   to  2020-10-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITAT DE BARCELONA ES (BARCELONA) coordinator 242˙683.00
2    UNIVERSITY OF BRITISH COLUMBIA CA (VANCOUVER) partner 0.00

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 Project objective

The mechanism behind the current phase of accelerated expansion of the Universe is not understood. Either space is filled with dark energy, a substance that has never been detected in an earth-bound laboratory, or the gravitational equations of Einstein are incorrect and acceleration arises naturally within the correct theory. There are now a wide variety of models that purport to explain accelerated expansion, and often these models make different predictions for how matter is clustered in the Universe. Weak gravitational lensing uses measurements of the deflection of light from distant galaxies to infer the intervening distribution of matter, and thus allows us to discriminate between acceleration models. However, in its present state the lack of accurate modelling for the distribution of matter as a function of cosmological paradigm will be the major limitation in the interpretation of forthcoming weak lensing data: the goal of the 'halo modelling' project is to provide the required accuracy of modelling. To achieve this, the Fellow will take a novel hybrid approach; combining results from perturbation theory, high-accuracy simulations and semi-analytics. Crucially, the 'halo modelling' project will simultaneously improve our understanding of the distribution of baryons relative to dark matter in the Universe, and incorporate this. The current ignorance of the level of mass redistribution caused by baryonic feedback processes has the potential to severely degrade the constraining power of forthcoming lensing surveys.

 Publications

year authors and title journal last update
List of publications.
2017 Alex Hall, Alexander Mead
Perturbative Gaussianizing transforms for cosmological fields
published pages: 3190-3203, ISSN: 0035-8711, DOI: 10.1093/mnras/stx2575
Monthly Notices of the Royal Astronomical Society 473/3 2019-11-07
2019 Nora Elisa Chisari, Alexander J. Mead, Shahab Joudaki, Pedro G. Ferreira, Aurel Schneider, Joseph Mohr, Tilman Tröster, David Alonso, Ian G. McCarthy, Sergio Martin-Alvarez, Julien Devriendt, Adrianne Slyz, Marcel P. van Daalen
Modelling baryonic feedback for survey cosmology
published pages: , ISSN: 2565-6120, DOI: 10.21105/astro.1905.06082
The Open Journal of Astrophysics 2/1 2019-11-07
2019 M Cataneo, L Lombriser, C Heymans, A J Mead, A Barreira, S Bose, B Li
On the road to percent accuracy: non-linear reaction of the matter power spectrum to dark energy and modified gravity
published pages: 2121-2142, ISSN: 0035-8711, DOI: 10.1093/mnras/stz1836
Monthly Notices of the Royal Astronomical Society 488/2 2019-11-07
2019 Kyle Lawson, Xunyu Liang, Alexander Mead, Md Shahriar Rahim Siddiqui, Ludovic Van Waerbeke, Ariel Zhitnitsky
Gravitationally trapped axions on the Earth
published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.100.043531
Physical Review D 100/4 2019-11-07
2018 Hideki Tanimura, Gary Hinshaw, Ian G McCarthy, Ludovic Van Waerbeke, Nabila Aghanim, Yin-Zhe Ma, Alexander Mead, Alireza Hojjati, Tilman Tröster
A search for warm/hot gas filaments between pairs of SDSS Luminous Red Galaxies
published pages: 223-234, ISSN: 0035-8711, DOI: 10.1093/mnras/sty3118
Monthly Notices of the Royal Astronomical Society 483/1 2019-11-07
2019 Nora Elisa Chisari, David Alonso, Elisabeth Krause, C. Danielle Leonard, Philip Bull, Jérémy Neveu, Antonio Villarreal, Sukhdeep Singh, Thomas McClintock, John Ellison, Zilong Du, Joe Zuntz, Alexander Mead, Shahab Joudaki, Christiane S. Lorenz, Tilman Tröster, Javier Sanchez, Francois Lanusse, Mustapha Ishak, Renée Hlozek, Jonathan Blazek, Jean-Eric Campagne, Husni Almoubayyed, Tim Eifler, Mat
Core Cosmology Library: Precision Cosmological Predictions for LSST
published pages: 2, ISSN: 1538-4365, DOI: 10.3847/1538-4365/ab1658
The Astrophysical Journal Supplement Series 242/1 2019-11-07
2017 Shahab Joudaki, Chris Blake, Andrew Johnson, Alexandra Amon, Marika Asgari, Ami Choi, Thomas Erben, Karl Glazebrook, Joachim Harnois-Déraps, Catherine Heymans, Hendrik Hildebrandt, Henk Hoekstra, Dominik Klaes, Konrad Kuijken, Chris Lidman, Alexander Mead, Lance Miller, David Parkinson, Gregory B Poole, Peter Schneider, Massimo Viola, Christian Wolf
KiDS-450 + 2dFLenS: Cosmological parameter constraints from weak gravitational lensing tomography and overlapping redshift-space galaxy clustering
published pages: 4894-4924, ISSN: 0035-8711, DOI: 10.1093/mnras/stx2820
Monthly Notices of the Royal Astronomical Society 474/4 2019-11-07

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