Opendata, web and dolomites


Investigating the mechanisms that shape galaxies in and around massive clusters

Total Cost €


EC-Contrib. €






Project "ClusterGal" data sheet

The following table provides information about the project.


Organization address
address: RAPENBURG 70
city: LEIDEN
postcode: 2311 EZ

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 Netherlands [NL]
 Project website
 Total cost 177˙598 €
 EC max contribution 177˙598 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2016
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2017
 Duration (year-month-day) from 2017-10-01   to  2019-09-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITEIT LEIDEN NL (LEIDEN) coordinator 177˙598.00


 Project objective

For decades, astronomers have known that some galaxies are living in dense associations known as “galaxy clusters”, and that many of their properties, e.g. their morphology, colour, and gas content, differ from those of galaxies living in more isolated parts of the Universe (like our Milky Way). However, understanding the physical origin of these differences has so far proved elusive, constituting a major gap in our understanding of galaxy formation. My proposed research will deliver ground-breaking new insight into this long-standing problem, based on detailed analyses of a tailor-made set of hydrodynamical cosmological simulations - the “Hydrangea” suite - that has been completed under my leadership during the last two years. Specifically, I will investigate 1.) the transformation of spiral discs into elliptical galaxies; 2.) the processes by which gas is accreted in the far outskirts of clusters; 3.) the stripping of gas from galaxies and the resulting quenching of star formation after infall into the cluster. Furthermore, I will use the insight gained in addressing these questions to improve simulation codes beyond the current state of the art, in preparation for even more accurate future simulations. This research has become possible only now, as a result of successful efforts to improve and calibrate simulation codes so that they produce realistic galaxies, computers becoming powerful enough for large simulations like Hydrangea, and the availability of multi-epoch, multi-wavelength observational data sets to test the validity of the simulations in detail. The combination of my experience in simulation analysis and the world-leading expertise at my host, Leiden Observatory, in the development of simulation models and observations of the real Universe, provide the ideal setting to make this project a success and equip me with the skills required to lead independent academic research.


year authors and title journal last update
List of publications.
2018 Thomas J Armitage, Scott T Kay, David J Barnes, Yannick M Bahé, Claudio Dalla Vecchia
The Cluster-EAGLE project: a comparison of dynamical mass estimators using simulated clusters
published pages: 3308-3325, ISSN: 0035-8711, DOI: 10.1093/mnras/sty2921
Monthly Notices of the Royal Astronomical Society 482/3 2020-01-21
2019 L J M Davies, A S G Robotham, C del P Lagos, S P Driver, A R H Stevens, Y M Bahé, M Alpaslan, M N Bremer, M J I Brown, S Brough, J Bland-Hawthorn, L Cortese, P Elahi, M W Grootes, B W Holwerda, A D Ludlow, S McGee, M Owers, S Phillipps
Galaxy And Mass Assembly (GAMA): Environmental Quenching of Centrals and Satellites in Groups
published pages: 5444-5458, ISSN: 0035-8711, DOI: 10.1093/mnras/sty3393
Monthly Notices of the Royal Astronomical Society 483/4 2020-01-21
2018 Claudia del P Lagos, Joop Schaye, Yannick Bahé, Jesse Van de Sande, Scott T Kay, David Barnes, Timothy A Davis, Claudio Dalla Vecchia
The connection between mass, environment, and slow rotation in simulated galaxies
published pages: 4327-4345, ISSN: 0035-8711, DOI: 10.1093/mnras/sty489
Monthly Notices of the Royal Astronomical Society 476/4 2020-01-21
2018 Andrew Robertson, Richard Massey, Vincent Eke, Sean Tulin, Hai-Bo Yu, Yannick Bahé, David J Barnes, Richard G Bower, Robert A Crain, Claudio Dalla Vecchia, Scott T Kay, Matthieu Schaller, Joop Schaye
The diverse density profiles of galaxy clusters with self-interacting dark matter plus baryons
published pages: L20-L24, ISSN: 1745-3933, DOI: 10.1093/mnrasl/sly024
Monthly Notices of the Royal Astronomical Society: Letters 476/1 2020-01-21
2018 Jesse van de Sande, Claudia D P Lagos, Charlotte Welker, Joss Bland-Hawthorn, Felix Schulze, Rhea-Silvia Remus, Yannick Bahé, Sarah Brough, Julia J Bryant, Luca Cortese, Scott M Croom, Julien Devriendt, Yohan Dubois, Michael Goodwin, Iraklis S Konstantopoulos, Jon S Lawrence, Anne M Medling, Christophe Pichon, Samuel N Richards, Sebastian F Sanchez, Nicholas Scott, Sarah M Sweet
The SAMI Galaxy Survey: comparing 3D spectroscopic observations with galaxies from cosmological hydrodynamical simulations
published pages: 869-891, ISSN: 0035-8711, DOI: 10.1093/mnras/sty3506
Monthly Notices of the Royal Astronomical Society 484/1 2020-01-21
2018 M Jauzac, D Eckert, M Schaller, J Schwinn, R Massey, Y Bahé, C Baugh, D Barnes, C Dalla Vecchia, H Ebeling, D Harvey, E Jullo, S T Kay, J-P Kneib, M Limousin, E Medezinski, P Natarajan, M Nonino, A Robertson, S I Tam, K Umetsu
Growing a ‘cosmic beast’: observations and simulations of MACS J0717.5+3745
published pages: 2901-2917, ISSN: 0035-8711, DOI: 10.1093/mnras/sty2366
Monthly Notices of the Royal Astronomical Society 481/3 2020-01-21
2019 Yannick M Bahé, Joop Schaye, David J Barnes, Claudio Dalla Vecchia, Scott T Kay, Richard G Bower, Henk Hoekstra, Sean L McGee, Tom Theuns
Disruption of satellite galaxies in simulated groups and clusters: the roles of accretion time, baryons, and pre-processing
published pages: 2287-2311, ISSN: 0035-8711, DOI: 10.1093/mnras/stz361
Monthly Notices of the Royal Astronomical Society 485/2 2020-01-21
2019 Lieke A C van Son, Christopher Barber, Yannick M Bahé, Joop Schaye, David J Barnes, Robert A Crain, Scott T Kay, Tom Theuns, Claudio Dalla Vecchia
Galaxies with monstrous black holes in galaxy cluster environments
published pages: 396-407, ISSN: 0035-8711, DOI: 10.1093/mnras/stz399
Monthly Notices of the Royal Astronomical Society 485/1 2020-01-21
2019 Omar Contigiani, Henk Hoekstra, Yannick M Bahé
Weak lensing constraints on splashback around massive clusters
published pages: 408-415, ISSN: 0035-8711, DOI: 10.1093/mnras/stz404
Monthly Notices of the Royal Astronomical Society 485/1 2020-01-21
2019 Mark R Lovell, David Barnes, Yannick Bahé, Joop Schaye, Matthieu Schaller, Tom Theuns, Sownak Bose, Robert A Crain, Claudio dalla Vecchia, Carlos S Frenk, Wojciech Hellwing, Scott T Kay, Aaron D Ludlow, Richard G Bower
The signal of decaying dark matter with hydrodynamical simulations
published pages: 4071-4089, ISSN: 0035-8711, DOI: 10.1093/mnras/stz691
Monthly Notices of the Royal Astronomical Society 485/3 2020-01-21

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