The Detectability of Self-Interacting Dark Matter in Cosmological Structure: The View from Numerical Simulations
Lead Research Organisation:
University of Edinburgh
Department Name: Sch of Physics and Astronomy
Abstract
The nature of dark matter is one of the great questions of modern physics. Constraints on candidate particles would be made if it were found that dark matter interacted non-gravitationally, even if weakly. Observations compared to simple models and simulations generally give upper limits but some have claimed a small but non-zero cross section. But the results are strongly dependent on what form the self-interaction takes, a point lost in many of the analyses and reported results. What is required is an review of the various interaction forms, their suitability for simulation, and simulation with all other aspects held constant.
The student will conduct simulations of self-interacting dark matter as implemented by the various previously-published works, but in a single code for direct comparison. The observations to be compared with are maps of the substructure in galaxy halos.
The student will conduct simulations of self-interacting dark matter as implemented by the various previously-published works, but in a single code for direct comparison. The observations to be compared with are maps of the substructure in galaxy halos.
People |
ORCID iD |
Francesca Lane (Student) |
Publications
Lane F. C.
(2021)
The Cosmological Trajectories Method: Modelling cosmic structure formation in the non-linear regime
in arXiv e-prints
Studentship Projects
Project Reference | Relationship | Related To | Start | End | Student Name |
---|---|---|---|---|---|
ST/N504051/1 | 30/09/2015 | 30/03/2021 | |||
1853178 | Studentship | ST/N504051/1 | 30/09/2016 | 29/09/2020 | Francesca Lane |
ST/R504737/1 | 30/09/2017 | 29/09/2021 | |||
1853178 | Studentship | ST/R504737/1 | 30/09/2016 | 29/09/2020 | Francesca Lane |
Description | A new mathematical method for modelling telescope observations of galaxies in our Universe. This method could be used to analyse future data and produce insights into gravity, particle physics, dark matter and dark energy. |
Exploitation Route | N/A |
Sectors | Education |
Description | SUPA PECRE |
Amount | £1,500 (GBP) |
Organisation | The Scottish Universities Physics Alliance (SUPA) |
Sector | Academic/University |
Country | United Kingdom |
Start | 02/2019 |
End | 03/2019 |
Description | IR resumption schemes for the BAO |
Organisation | European Organization for Nuclear Research (CERN) |
Department | Theoretical Physics Unit |
Country | Switzerland |
Sector | Academic/University |
PI Contribution | Supplied a new method for perturbation theory. |
Collaborator Contribution | Supplied code and schemes in order to improve our method |
Impact | N/A |
Start Year | 2019 |
Description | Winter talk |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Public/other audiences |
Results and Impact | One hour talk to 50 visitors to the observatory |
Year(s) Of Engagement Activity | 2019 |