Skip to main content

Research Repository

Advanced Search

Dark sector domain walls could explain the observed planes of satellites

Naik, Aneesh P.; Burrage, Clare

Authors

Aneesh P. Naik



Abstract

The observed 'planes of satellites' around the Milky Way and other nearby galaxies are notoriously difficult to explain under the ?CDM paradigm. Here, we propose an alternative solution: domain walls arising in theories with symmetry-breaking scalar fields coupled to matter. Because of the matter coupling, satellite galaxies experience fifth forces as they pass through domain walls, leading to a subset of satellites with orbits confined to the domain wall plane. We demonstrate this effect using simple simulations of a toy model comprising point-like satellites and an infinite domain wall, and explore the efficacy of various planarity metrics in detecting this effect. We believe this is the first potential 'new physics' explanation for the observed planes of satellites which does not do away with dark matter.

Citation

Naik, A. P., & Burrage, C. (2022). Dark sector domain walls could explain the observed planes of satellites. Journal of Cosmology and Astroparticle Physics, 2022(08), Article 020. https://doi.org/10.1088/1475-7516/2022/08/020

Journal Article Type Article
Acceptance Date Jul 8, 2022
Online Publication Date Aug 11, 2022
Publication Date Aug 1, 2022
Deposit Date Aug 24, 2022
Publicly Available Date Aug 24, 2022
Journal Journal of Cosmology and Astroparticle Physics
Electronic ISSN 1475-7516
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 2022
Issue 08
Article Number 020
DOI https://doi.org/10.1088/1475-7516/2022/08/020
Keywords paper, dwarfs galaxies, Cosmic strings, domain walls, monopoles, dark matter simulations, modified gravity
Public URL https://nottingham-repository.worktribe.com/output/10071906
Publisher URL https://iopscience.iop.org/article/10.1088/1475-7516/2022/08/020
Additional Information Article Title: Dark sector domain walls could explain the observed planes of satellites; Journal Title: Journal of Cosmology and Astroparticle Physics; Article Type: paper; Copyright Information: © 2022 The Author(s); Date Received: 2022-05-17; Date Accepted: 2022-07-08; Online publication date: 2022-08-11

Files

Dark sector domain walls could explain the observed planes of satellites (2.1 Mb)
PDF

Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/

Copyright Statement
Published by IOP Publishing Ltd on behalf of Sissa Medialab. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.





You might also like



Downloadable Citations