Research Fellow in GW or LSS Cosmology
| Posting date: | 24 November 2025 |
|---|---|
| Salary: | £41,064 to £44,746 per year |
| Hours: | Full time |
| Closing date: | 02 December 2025 |
| Location: | Portsmouth, Hampshire |
| Remote working: | Hybrid - work remotely up to 2 days per week |
| Company: | University of Portsmouth |
| Job type: | Contract |
| Job reference: | REC00004297 |
Summary
This postdoctoral position will focus on testing dark energy and modified gravity models with cosmological observations. Two aspects of this are of interest for this position, candidates are welcome via either route:
i) Linking simulations of large-scale structure (LSS) in modified gravity theories to observables relevant to stage IV surveys. Relevant skills include: experience with running and handling outputs from numerical simulations of LSS. Experience constructing emulators. Experience with forecasting and/or data analysis of galaxy clustering and weak lensing observables. Experience with HOD modelling. Other experience in constraining gravity with LSS will be considered.
ii) Testing gravity through the association of gravitational waves (GWs) and galaxies, e.g. dark sirens, GW-galaxy cross-correlation. Relevant skills include: experience with dark sirens software pipelines (e.g. gwcosmo, IcaroGW, CHIMERA…). Experience with GW x LSS cross-correlation computations. Experience with forecasting for 3G GW detectors. Other experience in GW cosmology will be considered.
The successful candidate will join the research team of Prof. Tessa Baker, and contribute to the ERC-funded SHADE project. Queries on the post can be directed to tessa.baker@port.ac.uk.
The working pattern for this post is full-time. Whilst there is a need to be in Portsmouth a few days a week, hybrid working is available for this role.
The interviews are currently anticipated to be held on 19 January 2025.
This appointment is a fixed-term contract for 12 months.
Applications (application form, CV, publication list and research proposal for the fellowship) should be submitted by the closing date. Applicants should also arrange for three letters of recommendation to be sent by email to icg-recruitment@port.ac.uk, to arrive by the same date.
i) Linking simulations of large-scale structure (LSS) in modified gravity theories to observables relevant to stage IV surveys. Relevant skills include: experience with running and handling outputs from numerical simulations of LSS. Experience constructing emulators. Experience with forecasting and/or data analysis of galaxy clustering and weak lensing observables. Experience with HOD modelling. Other experience in constraining gravity with LSS will be considered.
ii) Testing gravity through the association of gravitational waves (GWs) and galaxies, e.g. dark sirens, GW-galaxy cross-correlation. Relevant skills include: experience with dark sirens software pipelines (e.g. gwcosmo, IcaroGW, CHIMERA…). Experience with GW x LSS cross-correlation computations. Experience with forecasting for 3G GW detectors. Other experience in GW cosmology will be considered.
The successful candidate will join the research team of Prof. Tessa Baker, and contribute to the ERC-funded SHADE project. Queries on the post can be directed to tessa.baker@port.ac.uk.
The working pattern for this post is full-time. Whilst there is a need to be in Portsmouth a few days a week, hybrid working is available for this role.
The interviews are currently anticipated to be held on 19 January 2025.
This appointment is a fixed-term contract for 12 months.
Applications (application form, CV, publication list and research proposal for the fellowship) should be submitted by the closing date. Applicants should also arrange for three letters of recommendation to be sent by email to icg-recruitment@port.ac.uk, to arrive by the same date.
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