Observational consequences of modified gravity
Lead Research Organisation:
University of Sussex
Department Name: Sch of Mathematical & Physical Sciences
Abstract
It is now understood that the present expansion of the universe is accelerating, indicating an unexpected reversal of the gravitational force law on very large scales. This phenomenon has been confirmed by multiple experiments, but the microphysics underlying it is not understood. In this project the student will develop analytic and semianalytic frameworks to compare models of modified gravity to observations -- including measurements of galaxy densities and velocities, and weak lensing magnification and shear. Suitable frameworks include, among others, the effective field theory of large-scale structure and parametrized post-Friedmann description. A secure understanding of the utility and applicability of these frameworks will inform our interpretation of data from the ESA Euclid satellite and other large-scale surveys.
Organisations
People |
ORCID iD |
| David Seery (Primary Supervisor) | |
| Michaela Lawrence (Student) |
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| ST/N504452/1 | 01/10/2015 | 31/03/2021 | |||
| 1659317 | Studentship | ST/N504452/1 | 01/10/2015 | 31/01/2020 | Michaela Lawrence |
| Description | Assisting with the traveling observatory |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | National |
| Primary Audience | Public/other audiences |
| Results and Impact | For two years I have assisted the founder of the Traveling Observatory with showing members of the public around our solar system. Popular things to look at through our two night time telescopes are Saturn's rings and Jupiter's moons and in the day time we have a solar telescope to look through. My role was not only to help operate the telescopes but also to explain to the public what they are looking at and to discuss my own research at the University of Sussex. I spoke to a great number and variety of people, the activity sparked questions from them and discussions on my work. |
| Year(s) Of Engagement Activity | 2016,2017 |
| URL | http://www.thetravellingobservatory.co.uk/ |
| Description | Science on the buses |
| Form Of Engagement Activity | A broadcast e.g. TV/radio/film/podcast (other than news/press) |
| Part Of Official Scheme? | No |
| Geographic Reach | Local |
| Primary Audience | Public/other audiences |
| Results and Impact | Commuters on local busses get to know local scientists at the University of Sussex through portraits and profiles on the inside of the buses, through short filmed interviews that I and other members of my institution completed, on the web. The project also involved regular pre-announced 'curated' bus journeys, where passengers can ask real scientists any burning questions they have in the fields of physics and astronomy. |
| Year(s) Of Engagement Activity | 2017,2018 |
| URL | http://gtr.rcuk.ac.uk/projects?ref=ST%2FR000379%2F1 |