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dc.contributor.author
Moliné, Ángeles  
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Sánchez Conde, Miguel A.  
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Aguirre Santaella, Alejandra  
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Ishiyama, Tomoaki  
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Prada, Francisco  
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Cora, Sofia Alejandra  
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Croton, Darren  
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Jullo, Eric  
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Metcalf, R. Benton  
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Oogi, Taira  
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Ruedas, José  
dc.date.available
2023-12-01T15:40:30Z  
dc.date.issued
2023-01  
dc.identifier.citation
Moliné, Ángeles; Sánchez Conde, Miguel A.; Aguirre Santaella, Alejandra; Ishiyama, Tomoaki; Prada, Francisco; et al.; ΛCDM halo substructure properties revealed with high-resolution and large-volume cosmological simulations; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 518; 1; 1-2023; 157-173  
dc.identifier.issn
0035-8711  
dc.identifier.uri
http://hdl.handle.net/11336/219015  
dc.description.abstract
In this work, we investigate the structural properties, distribution and abundance of ΛCDM dark matter subhaloes using the Phi-4096 and Uchuu suite of N-body cosmological simulations. Thanks to the combination of their large volume, high mass resolution and superb statistics, we are able to quantify - for the first time consistently over more than seven decades in ratio of subhalo-to-host-halo mass - dependencies of subhalo properties on mass, maximum circular velocity, Vmax, host halo mass, and distance to host halo centre. We also dissect the evolution of these dependencies over cosmic time. We provide accurate fits for the subhalo mass and velocity functions, both exhibiting decreasing power-law slopes and with no significant dependence on redshift. We also find subhalo abundance to depend weakly on host halo mass. Subhalo structural properties are codified via a concentration parameter, cV, that does not depend on any pre-defined density profile and relies only on Vmax. We derive the cV-Vmax relation and find an important dependence on distance of the subhalo to the host halo centre. Interestingly, we also find subhaloes of the same mass to be significantly more concentrated when they reside inside more massive hosts. Finally, we investigate the redshift evolution of cV, and provide accurate fits. Our results offer an unprecedented detailed characterization of the subhalo population, consistent over a wide range of subhalo and host halo masses, as well as cosmic times. Thus, we expect our work to be particularly useful for any future research involving dark matter halo substructure.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Wiley Blackwell Publishing, Inc  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
COSMOLOGY: THEORY  
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DARK MATTER  
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GALAXIES: HALOES  
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METHODS: NUMERICAL  
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Astronomía  
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Ciencias Físicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
ΛCDM halo substructure properties revealed with high-resolution and large-volume cosmological simulations  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
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info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-11-28T15:07:14Z  
dc.journal.volume
518  
dc.journal.number
1  
dc.journal.pagination
157-173  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Londres  
dc.description.fil
Fil: Moliné, Ángeles. Universidad Autónoma de Madrid; España. Consejo Superior de Investigaciones Científicas; España. Space and Astroparticle Group; España  
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Fil: Sánchez Conde, Miguel A.. Universidad Autónoma de Madrid; España  
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Fil: Aguirre Santaella, Alejandra. Universidad Autónoma de Madrid; España  
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Fil: Ishiyama, Tomoaki. Chiba University; Japón  
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Fil: Prada, Francisco. Instituto de Astrofísica de Andalucía; España  
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Fil: Cora, Sofia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina  
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Fil: Croton, Darren. Centre For Astrophysics And Supercomputing, Swinburne; Australia  
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Fil: Jullo, Eric. Aix Marseille University; Francia. Centre National de la Recherche Scientifique; Francia  
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Fil: Metcalf, R. Benton. Università di Bologna; Italia  
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Fil: Oogi, Taira. Ehime University; Japón. Chiba University; Japón  
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Fil: Ruedas, José. Instituto de Astrofísica de Andalucía; España  
dc.journal.title
Monthly Notices of the Royal Astronomical Society  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/518/1/157/6783167  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/mnras/stac2930