Opendata, web and dolomites


The Baryon Picture of the Cosmos

Total Cost €


EC-Contrib. €






 ByoPiC project word cloud

Explore the words cloud of the ByoPiC project. It provides you a very rough idea of what is the project "ByoPiC" about.

infrared    data    optimally    form    tools    galaxies    contained    completely    budget    cosmology    optical    successful    evolution    recover    baryon    shaping    reconstruct    tracers    cosmic    clusters    preparation    scales    complementary    cross    planck    answer    thanks    mysterious    sunyaev    deliverable    optimal    census    structure    astrophysics    detect    innovative    perform    picture    standard    catalogues    detected    driving    assessing    filaments    physical    unresolved    newly    multiwavelength    hot    question    dense    issue    half    dark    zeldovich    joint    unobserved    complete    cold    extremely    made    effect    history    combined    super    mapping    enigmas    statistical    skeleton    ionised    plagued    first    hidden    tracing    statistically    baryons    central    nature    rely    near    web    surveys    assembled    total    galaxy    ordinary    times    observations    contribution    paradigm    consistent    detecting    byopic    added    cosmological    give    traced   

Project "ByoPiC" data sheet

The following table provides information about the project.


Organization address
address: RUE MICHEL ANGE 3
city: PARIS
postcode: 75794

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 France [FR]
 Project website
 Total cost 2˙488˙350 €
 EC max contribution 2˙488˙350 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-AdG
 Funding Scheme ERC-ADG
 Starting year 2017
 Duration (year-month-day) from 2017-01-01   to  2021-12-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

The cosmological paradigm of structure formation is both extremely successful and plagued by many enigmas. Not only the nature of the main matter component, dark matter, shaping the structure skeleton in the form of a cosmic web, is mysterious; but also half of the ordinary matter (i.e. baryons) at late times of the cosmic history, remains unobserved, or hidden! ByoPiC focuses on this key and currently unresolved issue in astrophysics and cosmology: Where and how are half of the baryons hidden at late times? ByoPiC will answer that central question by detecting, mapping, and assessing the physical properties of hot ionised baryons at large cosmic scales and at late times. This will give a completely new picture of the cosmic web, added to its standard tracers, i.e. galaxies made of cold and dense baryons. To this end, ByoPiC will perform the first statistically consistent, joint analysis of complementary multiwavelength data: Planck observations tracing hot, ionised baryons via the Sunyaev-Zeldovich effect, optimally combined with optical and near infrared galaxy surveys as tracers of cold baryons. This joint analysis will rely on innovative statistical tools to recover all the (cross)information contained in these data in order to detect most of the hidden baryons in cosmic web elements such as (super)clusters and filaments. These newly detected elements will then be assembled to reconstruct the cosmic web as traced by both hot ionised baryons and galaxies. Thanks to that, ByoPiC will perform the most complete and detailed assessment of the census and contribution of hot ionised baryons to the total baryon budget, and identify the main physical processes driving their evolution in the cosmic web. Catalogues of new (super)clusters and filaments, and innovative tools, will be key deliverable products, allowing for an optimal preparation of future surveys.


year authors and title journal last update
List of publications.
2020 T. Bonnaire, N. Aghanim, A. Decelle, M. Douspis
T-ReX: a graph-based filament detection method
published pages: , ISSN: 0004-6361, DOI:
Astronomy & Astrophysics 2020-04-01
2020 Nicola Malavasi, Nabila Aghanim, Marian Douspis, Hideki Tanimura, Victor Bonjean
Characterising filaments in the SDSS volume from the galaxy distribution
published pages: , ISSN: 0004-6361, DOI:
submitted to Astronomy & Astrophysics 2020-04-01
2020 Bonjean, V.; Aghanim, N.; Douspis, M.; Malavasi, N.; Tanimura, H.
Filament profiles from WISExSCOS galaxies as probes of the impact of environmental effects
published pages: , ISSN: 0004-6361, DOI:
Astronomy & Astrophysics 2020-04-01
2020 Gouin, C.; Aghanim, N.; Bonjean, V.; Douspis, M.
Probing the azimuthal environment of galaxies around clusters. From cluster core to cosmic filaments
published pages: , ISSN: 0004-6361, DOI:
Astronomy & Astrophysics 2020-04-01
2019 Ke Shi, Yun Huang, Kyoung-Soo Lee, Jun Toshikawa, Kathryn N. Bowen, Nicola Malavasi, B. C. Lemaux, Olga Cucciati, Olivier Le Fevre, Arjun Dey
How Do Galaxies Trace a Large-scale Structure? A Case Study around a Massive Protocluster at Z = 3.13
published pages: 9, ISSN: 1538-4357, DOI: 10.3847/1538-4357/ab2118
The Astrophysical Journal 879/1 2020-04-01
2019 Fabien Lacasa, Julien Grain
Fast and easy super-sample covariance of large-scale structure observables
published pages: A61, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201834343
Astronomy & Astrophysics 624 2019-09-26
2019 Lemarchand, Nadège; Grain, Julien; Hurier, Guillaume; Lacasa, Fabien; Ferté, Agnès
Secondary CMB anisotropies from magnetized halos --I: Power spectra of the Faraday rotation angle and conversion rate
published pages: , ISSN: , DOI:
Submitted to Astronomy & Astrophysics 2019-09-26
2019 Tanimura, Hideki; Hinshaw, Gary; McCarthy, Ian G.; Van Waerbeke, Ludovic; Aghanim, Nabila; Ma, Yin-Zhe; Mead, Alexander; Tröster, Tilman; Hojjati, Alireza; Moraes, Bruno
Probing hot gas around luminous red galaxies through the Sunyaev-Zel\'dovich effect
published pages: , ISSN: , DOI: 1 2019-09-18
2019 Laura Salvati, Marian Douspis, Anna Ritz, Nabila Aghanim, Arif Babul
Mass bias evolution in tSZ cluster cosmology
published pages: A27, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201935041
Astronomy & Astrophysics 626 2019-08-29
2019 Tanimura, Hideki; Hinshaw, Gary; McCarthy, Ian G.; Van Waerbeke, Ludovic; Aghanim, Nabila; Ma, Yin-Zhe; Mead, Alexander; Tröster, Tilman; Hojjati, Alireza; Moraes, Bruno
Probing hot gas around luminous red galaxies through the Sunyaev-Zel\'dovich effect
published pages: , ISSN: , DOI:
submitted to MNRAS 1 2019-08-29
2019 Aghanim, N.; Douspis, M.; Hurier, G.; Crichton, D.; Diego, J. -M.; Hasselfield, M.; Macias-Perez, J.; Marriage, T. A.; Pointecouteau, E.; Remazeilles, M.; Soubrie, E.
PACT I: Combining ACT and Planck data for optimal detection of tSZ signal
published pages: , ISSN: 0004-6361, DOI:
Astronomy & astrophysics 1 2019-08-29
2019 V. Bonjean, N. Aghanim, P. Salomé, A. Beelen, M. Douspis, E. Soubrié
Star formation rates and stellar masses from machine learning
published pages: A137, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201833972
Astronomy & Astrophysics 622 2019-08-29
2018 Moutard, Thibaud; Malavasi, Nicola; Sawicki, Marcin; Arnouts, Stéphane; Tripathi, Shruti
On the slow quenching of M* galaxies: heavily-obscured AGNs clarify the picture
published pages: , ISSN: 0035-8711, DOI:
submitted to MNRAS 1 2019-08-29
2018 Marian Douspis, Laura Salvati, Nabila Aghanim
On the Tension between Large Scale Structures and Cosmic Microwave Background
published pages: 37, ISSN: , DOI: 10.22323/1.335.0037
Proceedings of 2nd World Summit: Exploring the Dark Side of the Universe — PoS(EDSU2018) 2019-08-29
2018 V. Bonjean, N. Aghanim, P. Salomé, M. Douspis, A. Beelen
Gas and galaxies in filaments between clusters of galaxies
published pages: A49, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201731699
Astronomy & Astrophysics 609 2019-06-13
2018 Laura Salvati, Marian Douspis, Nabila Aghanim
Constraints from thermal Sunyaev-Zel’dovich cluster counts and power spectrum combined with CMB
published pages: A13, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201731990
Astronomy & Astrophysics 614 2019-06-13
2018 Tanimura, H.; Aghanim, N.; Douspis, M.; Beelen, A.; Bonjean, V.
Detection of intercluster gas in superclusters using the thermal Sunyaev-Zel\'dovich effect
published pages: , ISSN: , DOI:
submitted to A&A 1 2019-06-13
2018 Durrive, Jean-Baptiste; Langer, Mathieu
Analytic growth rate of gravitational instability in self-gravitating planar polytropes
published pages: , ISSN: , DOI:
Journal of Fluid Mechanics, accepted 2019-06-13
2018 Planck Collaboration; Aghanim, N.; Akrami, Y.; Ashdown, M.; et al.
Planck 2018 results. VI. Cosmological parameters
published pages: , ISSN: , DOI:
submitted to A&A 2019-06-13
2018 Hideki Tanimura, Gary Hinshaw, Ian G. McCarthy, Ludovic Van Waerbeke, Nabila Aghanim, Yin-Zhe Ma, Alexander Mead, Alireza Hojjati and Tilman Tröster
A Search for Warm/Hot Gas Filaments Between Pairs of SDSS Luminous Red Galaxies
published pages: , ISSN: , DOI:
submitted to MNRAS 2019-04-04

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