Suboptimal Sleep And Unhealthy Brain Ageing: Improving Outcomes Through Treatment
Funder
National Health and Medical Research Council
Funding Amount
$632,705.00
Summary
My research will address limitations in our understanding of the impact of sleep characteristics on memory and thinking abilities and biological markers of brain health in older adults, by; 1) exploring these relationships over time, and 2) enabling direct assessment of the effect of improved sleep on memory and thinking, and markers of brain health, following sleep-improvement therapy. My results will contribute to the development of strategies aimed at promoting healthy brain ageing.
A Transdimensional Approach to Gravitational-Wave Astronomy. This project uses ripples in the fabric of spacetime––gravitational waves––to understand the cosmos and the fundamental nature of reality. We aim to discover new sources of gravitational waves from exploding stars. Using gravitational waves from colliding black holes, we aim to uncover new physics beyond Einstein's theory of general relativity. To achieve these goals we will develop tools from the cutting-edge of data science.
General relativistic light propagation effects: new insight into cosmic voids, dark matter, dark energy, and Einstein's theory of gravity. This project aims to be the first to develop new methods which will allow accurate study of light propagation effects. These methods remove the “noise” (light propagation effects) from observational data, resulting in unprecedented accuracy of the analyses and new insight into properties of dark energy. At the same time these methods use the “noise” as the ac ....General relativistic light propagation effects: new insight into cosmic voids, dark matter, dark energy, and Einstein's theory of gravity. This project aims to be the first to develop new methods which will allow accurate study of light propagation effects. These methods remove the “noise” (light propagation effects) from observational data, resulting in unprecedented accuracy of the analyses and new insight into properties of dark energy. At the same time these methods use the “noise” as the actual signal to measure properties of the Universe, especially the mass distribution inside cosmic voids (places in the Universe avoided by galaxies), which will solve the problem of dark matter distribution inside cosmic voids. The project aims to use light propagation effects to test Einstein's theory of gravity at cosmological scales.Read moreRead less
Precision cosmic expansion in the era of gravitational-wave astronomy. The disagreement in the size of the cosmic expansion rate, between measurements from local galaxy indicators and predictions from the early Universe, is a crisis for cosmology. This Project aims to resolve this situation using recent scientific breakthroughs in both observations and theory. We will optimise expansion measurements from the standard sirens discovered by gravitational-wave astronomy by accurate modelling of th ....Precision cosmic expansion in the era of gravitational-wave astronomy. The disagreement in the size of the cosmic expansion rate, between measurements from local galaxy indicators and predictions from the early Universe, is a crisis for cosmology. This Project aims to resolve this situation using recent scientific breakthroughs in both observations and theory. We will optimise expansion measurements from the standard sirens discovered by gravitational-wave astronomy by accurate modelling of the cosmic velocity field which limits this analysis. And we will use recent breakthoughs in numerical general relativity to explore the influence of space-time curvature variations on these measurements. We will hence improve our understanding of the most important parameter describing the Universe, and its physics.Read moreRead less
A Space Odyssey: Exploring the Universe with Gravitational-Wave Sirens. How fast is the Universe expanding? This project aims to produce the most precise measurement to date of the present day expansion rate of the Universe using gravitational waves and thus resolve current tensions plaguing existing measurements. We plan to develop the most comprehensive catalogue of gravitational waves and their hosts using the largest galaxy surveys in the world and use innovative statistical techniques to ex ....A Space Odyssey: Exploring the Universe with Gravitational-Wave Sirens. How fast is the Universe expanding? This project aims to produce the most precise measurement to date of the present day expansion rate of the Universe using gravitational waves and thus resolve current tensions plaguing existing measurements. We plan to develop the most comprehensive catalogue of gravitational waves and their hosts using the largest galaxy surveys in the world and use innovative statistical techniques to extract cosmological measurements from them. Expected outcomes include new knowledge of what the Universe is made of and how it has evolved, and enhanced international collaboration between Australia and other survey member countries. Anticipated benefits include new software and methods for the analysis of big data.Read moreRead less
Weighing the Universe using fast radio bursts. Fast radio bursts are a newly-discovered astronomical phenomenon whose millisecond-timescale emission occurs at cosmological distances, rendering them exceptional probes of the matter that lies in intergalactic space. This project aims to measure the positions and obtain the distances to these bursts to make a direct measurement of the density of ordinary matter in the Universe, at least 50 per cent of which is believed to remain undetected in inter ....Weighing the Universe using fast radio bursts. Fast radio bursts are a newly-discovered astronomical phenomenon whose millisecond-timescale emission occurs at cosmological distances, rendering them exceptional probes of the matter that lies in intergalactic space. This project aims to measure the positions and obtain the distances to these bursts to make a direct measurement of the density of ordinary matter in the Universe, at least 50 per cent of which is believed to remain undetected in intergalactic space. This project will measure the distribution of this missing matter, and find how it has evolved throughout the history of the Universe. This will provide significant benefits, such as addressing two fundamental questions about our Universe: how much matter does it contain, and has a large fraction of it hitherto evaded detection in intergalactic space?Read moreRead less
Australian Laureate Fellowships - Grant ID: FL180100168
Funder
Australian Research Council
Funding Amount
$2,899,722.00
Summary
Illuminating the dark universe. This project aims to measure and explain the dark side of the universe, by performing new theoretical analyses of two groundbreaking surveys. Dark energy and dark matter are amongst the most profound puzzles facing fundamental physics. The Dark Energy Survey expects to discover approximately 3000 supernovae, and using The Dark Energy Spectroscopic Instrument will measure distances to 30 million galaxies. This project will combine these findings to determine whethe ....Illuminating the dark universe. This project aims to measure and explain the dark side of the universe, by performing new theoretical analyses of two groundbreaking surveys. Dark energy and dark matter are amongst the most profound puzzles facing fundamental physics. The Dark Energy Survey expects to discover approximately 3000 supernovae, and using The Dark Energy Spectroscopic Instrument will measure distances to 30 million galaxies. This project will combine these findings to determine whether dark energy changes with time, narrow the search for a quantum theory of gravity, and complete the standard model of particle physics by measuring the mass of the neutrino, a subatomic particle. This will substantially advance our understanding of the physics of our Universe, inspiring the next generation of innovators.Read moreRead less
The diversity of core-collapse supernovae. This project aims to develop a comprehensive picture of the explosions of massive stars as core-collapse supernovae using high-end computer simulations. Such explosions come in many varieties and arise from different classes of progenitor stars. This project seeks to thoroughly understand this diversity. It endeavours to provide simulations of supernovae powered by magnetic fields, supernovae that produce black holes, supernovae in binary systems, and t ....The diversity of core-collapse supernovae. This project aims to develop a comprehensive picture of the explosions of massive stars as core-collapse supernovae using high-end computer simulations. Such explosions come in many varieties and arise from different classes of progenitor stars. This project seeks to thoroughly understand this diversity. It endeavours to provide simulations of supernovae powered by magnetic fields, supernovae that produce black holes, supernovae in binary systems, and the most energetic neutrino-driven supernovae. The project also aspires to better link numerical simulations, observations of supernovae and their remnants, and the nucleosynthesis fingerprints that supernovae have left in the chemical history record of galaxies.Read moreRead less