In 1998, astronomers studying supernovae made the surprising discovery that the expansion of the Universe was accelerating; their work was recognized by the 2011 Nobel Prize.
The mysterious stuff driving this acceleration was named ‘dark energy’, and is now known to account for about 70% of the Universe’s density. There are a number of proposals for what dark energy is, ranging from Einstein’s cosmological constant to scalar fields to modifications to General Relativity on cosmological distance scales. Understanding the nature of dark energy is a major area of research in modern cosmology.
Supervisor Profiles & Available Research Projects
- Galaxy cluster cosmology
- Tests of dark energy using galaxy cluster abundances
The Fornax Galaxy Cluster is one of the closest galactic groupings beyond our Local Group of galaxies. The VLT Survey Telescope image shows the central part of the cluster. At the lower-right is the spiral galaxy NGC 1365 and to the left the elliptical NGC 1399. Credit: ESO
- Using Asteroseismology to Measure an Integrated Mass Loss for Evolved Stars in Globular Clusters Wednesday 14 Sep 2022 @ 12:00 p.m., Level 6 Geoff Opat([...]
- Understanding X-Ray Signatures of Outflows Through 3-D Simulations Wednesday 07 Sep 2022 @ 12:00 p.m., Level 6 Geoff Opat([...]
- Orbital structures of SAMI passive galaxies from orbit-superposition Schwarzschild models. Wednesday 31 Aug 2022 @ 12:00 p.m., Laby Theatre(+Zoom)[...]
- On Modelling Complex Systems in Astronomy Wednesday 17 Aug 2022 @ 12:00 p.m., Laby Theatre(+Zoom)[...]
- Hydroxyl as a Probe of the Interstellar Medium Wednesday 10 Aug 2022 @ 12:00 p.m., Zoom Dr Anita Petzl[...]
- How do galaxies regulate their own star formation? Wednesday 03 Aug 2022 @ 12:00 p.m., Laby Theatre(+Zoom)[...]
- Leaks and bursts Wednesday 27 Jul 2022 @ 12:00 p.m., Laby Theatre(+Zoom)[...]