Marta Reina-Campos
Constraining the shape of dark matter haloes with globular clusters and diffuse stellar light in the E-MOSAICS simulations
Reina-Campos, Marta; Trujillo-Gomez, Sebastian; Pfeffer, Joel L; Sills, Alison; Deason, Alis J; Crain, Robert A; Diederik Kruijssen, J M
Authors
Sebastian Trujillo-Gomez
Joel L Pfeffer
Alison Sills
Professor Alis Deason alis.j.deason@durham.ac.uk
Professor
Robert A Crain
J M Diederik Kruijssen
Abstract
We explore how diffuse stellar light and globular clusters (GCs) can be used to trace the matter distribution of their host halo using an observational methodology. For this, we use 117 simulated dark matter (DM) haloes from the
periodic volume of the E-MOSAICS project. For each halo, we compare the stellar surface brightness and GC projected number density maps to the surface density of DM. We find that the dominant structures identified in the stellar light and GCs correspond closely with those from the DM. Our method is unaffected by the presence of satellites and its precision improves with fainter GC samples. We recover tight relations between the dimensionless profiles of stellar-to-DM surface density and GC-to-DM surface density, suggesting that the profile of DM can be accurately recovered from the stars and GCs (σ ≤ 0.5 dex). We quantify the projected morphology of DM, stars, and GCs and find that the stars and GCs are more flattened than the DM. Additionally, the semimajor axes of the distribution of stars and GCs are typically misaligned by ∼10 degrees from that of DM. We demonstrate that deep imaging of diffuse stellar light and GCs can place constraints on the shape, profile, and orientation of their host halo. These results extend down to haloes with central galaxies M⋆ ≥ 1010 M⊙, and the analysis will be applicable to future data from the Euclid, Roman, and the Rubin observatories
Citation
Reina-Campos, M., Trujillo-Gomez, S., Pfeffer, J. L., Sills, A., Deason, A. J., Crain, R. A., & Diederik Kruijssen, J. M. (2023). Constraining the shape of dark matter haloes with globular clusters and diffuse stellar light in the E-MOSAICS simulations. Monthly Notices of the Royal Astronomical Society, 521(4), 6368–6382. https://doi.org/10.1093/mnras/stad920
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 17, 2023 |
Online Publication Date | Mar 28, 2023 |
Publication Date | 2023-06 |
Deposit Date | Feb 6, 2024 |
Publicly Available Date | Feb 6, 2024 |
Journal | Monthly Notices of the Royal Astronomical Society |
Print ISSN | 0035-8711 |
Electronic ISSN | 1365-2966 |
Publisher | Royal Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 521 |
Issue | 4 |
Pages | 6368–6382 |
DOI | https://doi.org/10.1093/mnras/stad920 |
Public URL | https://durham-repository.worktribe.com/output/2227694 |
Files
Published Journal Article
(6.3 Mb)
PDF
Copyright Statement
© 2023 The Author(s)
Published by Oxford University Press on behalf of Royal Astronomical Society
You might also like
Detection of Accretion Shelves Out to the Virial Radius of a Low-mass Galaxy with JWST
(2024)
Journal Article
The proto-galaxy of Milky Way-mass haloes in the FIRE simulations
(2023)
Journal Article
HALO7D. III. Chemical Abundances of Milky Way Halo Stars from Medium-resolution Spectra
(2023)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2025
Advanced Search