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
- Real or not real? What cosmological simulations can (and cannot) tell us about the cold phase of the CGM Wednesday September 30th 2020 @12pm, Zoom Colloquium Dr[...]
- Precision weak lensing and the dispersion in the stellar-to-halo mass relation. Wednesday September 16th 2020 @12pm, Zoom Colloquium Po[...]
- IGM Attenuation Bias for Lyman Continuum Detected Galaxies at z > 3.0 Wednesday September 9th 2020 @12pm, Zoom Colloquium Dr[...]
- Probing neural networks for science: What is it they are learning? Wednesday August 26th 2020 @12pm, Zoom Colloquium Dr Co[...]
- Heavy Puzzle Pieces: Nucleosynthesis Models of the Intermediate Neutron-capture Process Wednesday July 22nd 2020 @12pm, Zoom Colloquium Melanie[...]
- Observational consequences of binary neutron star merger remnants Wednesday June 17th 2020 @12pm, Zoom Colloquium Nikhil[...]
- Cosmological tests using galaxy-galaxy lensing and clustering amplitudes in KiDS-1000 Wednesday May 6th 2020 @12pm, Zoom Colloquium Prof. Chr[...]