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
- Studying the Tiniest, Oldest Galaxies in the Milky Way's Assembly History through Chemical Tagging and Kinematics Wednesday 20 Oct 2021 @ 12:00 p.m., Zoom Kaley Brauer,[...]
- Improving estimates of the growth rate of structure with galaxy-velocity cross correlations Wednesday 13 Oct 2021 @ 12:00 p.m., Zoom Ryan Turner, S[...]
- Exploring exotic transients in modern surveys Wednesday 29 Sep 2021 @ 04:00 p.m., Zoom Dr Charlotte A[...]
- Open questions in formation of compact binary star systems Wednesday 22 Sep 2021 @ 04:00 p.m., Zoom Sophie Lund Sc[...]
- Evolution of Stellar Feedback from Reionization to The Milky Way: A Diverse Toolset of Imaging, Spectroscopy, and Modelling for Understanding the Impact of Massive Stars Wednesday 08 Sep 2021 @ 10:00 a.m., Zoom Grace Olivier,[...]
- Search, analysis and localization of FRBs Wednesday 25 Aug 2021 @ 10:00 a.m., Zoom Kshitij Aggarw[...]
- Lya Transmission in the Reionizing Intergalactic Medium Wednesday 18 Aug 2021 @ 12:00 p.m., Zoom Dr Hyunbae Par[...]