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Drivers of phenotypic evolution in a vulnerable alpine ecosystem. This project aims to deliver a comprehensive, integrated understanding of the capacity for resilience and drivers of response of highly vulnerable alpine species and communities to climate change. The project aims to determine how communities of interacting alpine plants, soil invertebrates and microbes can cope with or evolve to novel climatic conditions. The mountains are water towers critical to power supply and Australia's agr ....Drivers of phenotypic evolution in a vulnerable alpine ecosystem. This project aims to deliver a comprehensive, integrated understanding of the capacity for resilience and drivers of response of highly vulnerable alpine species and communities to climate change. The project aims to determine how communities of interacting alpine plants, soil invertebrates and microbes can cope with or evolve to novel climatic conditions. The mountains are water towers critical to power supply and Australia's agricultural productivity. Understanding physiological tolerance and the potential for rapid evolutionary responses of plants, animals and communities is necessary to predict impacts of climate change on the future productivity of the vulnerable Australian Alps and to provide novel options for climate adaptation. Read moreRead less
Solving the mystery of ultra luminous fast radio burst emission . Fast Radio Bursts are a recently discovered inexplicable astronomical phenomenon whose millisecond-timescale emission is generated by regions less than 300 kilometres across yet so luminous it is visible at cosmological distances. Using the Australian Square Kilometre Array Pathfinder we have already localised these bursts, which made the front cover of Science, and recently used them to find the missing baryonic matter in the Uni ....Solving the mystery of ultra luminous fast radio burst emission . Fast Radio Bursts are a recently discovered inexplicable astronomical phenomenon whose millisecond-timescale emission is generated by regions less than 300 kilometres across yet so luminous it is visible at cosmological distances. Using the Australian Square Kilometre Array Pathfinder we have already localised these bursts, which made the front cover of Science, and recently used them to find the missing baryonic matter in the Universe. Next, we will scrutinise these bursts at three nanosecond time resolution, reaching the timescale necessary to probe the mechanism by which their ultra-luminous radiation is generated. This project will reveal previously inaccessible properties of the radiation to unlock the secrets of how they are produced.Read moreRead less
Relativistic Particles in Star-Forming Galaxies. This project aims to understand how galactic evolution is shaped by the relativistic particles known as cosmic rays that fill interstellar space. We understand only poorly how cosmic rays interact with non-relativistic interstellar matter, which in turn limits our understanding of how they affect galaxies. The project seeks to resolve this question by calculating how cosmic ray-matter interaction gives rise to light and neutrinos that we can obser ....Relativistic Particles in Star-Forming Galaxies. This project aims to understand how galactic evolution is shaped by the relativistic particles known as cosmic rays that fill interstellar space. We understand only poorly how cosmic rays interact with non-relativistic interstellar matter, which in turn limits our understanding of how they affect galaxies. The project seeks to resolve this question by calculating how cosmic ray-matter interaction gives rise to light and neutrinos that we can observe using current and future telescopes, enabling us to use observations from these telescopes to solve the problem of cosmic ray-matter interaction. This would resolve the question of how cosmic rays shape galaxy evolution, and thus represent a substantial advance in the theory of galaxy formation.Read moreRead less
Detecting cosmic rays using precision radio imaging. This project's aim is to identify the source of the highest-energy particles in nature, cosmic rays, and discover new physical processes at energies unreachable by the Large Hadron Collider.
It will do this by using the Murchison Widefield Array radio telescope to detect the sub-microsecond pulses from cosmic ray interactions in the Earth's atmosphere. The project's intended outcome is a sample of thousands of cosmic ray events, and a new tec ....Detecting cosmic rays using precision radio imaging. This project's aim is to identify the source of the highest-energy particles in nature, cosmic rays, and discover new physical processes at energies unreachable by the Large Hadron Collider.
It will do this by using the Murchison Widefield Array radio telescope to detect the sub-microsecond pulses from cosmic ray interactions in the Earth's atmosphere. The project's intended outcome is a sample of thousands of cosmic ray events, and a new technique to analyse the structure within them.
The anticipated benefits are the establishment of the Murchison Widefield Array as a world-leading instrument for astroparticle physics, new knowledge of high-energy astro and particle physics, and advances and training in fast signal processing methods.Read moreRead less
The role of radiation and cosmic rays in galaxy formation. This project aims to solve the enduring question about galaxy formation of why galaxies are so inefficient at turning gas into stars. This project will investigate two possible agents for this inefficiency, the pressures exerted by starlight photons and the relativistic cosmic rays produced by supernovae, using a combination of numerical simulations, basic physical analysis, and comparison to observations. The expected outcome will be a ....The role of radiation and cosmic rays in galaxy formation. This project aims to solve the enduring question about galaxy formation of why galaxies are so inefficient at turning gas into stars. This project will investigate two possible agents for this inefficiency, the pressures exerted by starlight photons and the relativistic cosmic rays produced by supernovae, using a combination of numerical simulations, basic physical analysis, and comparison to observations. The expected outcome will be a greatly improved understanding of the physics of the interaction of radiation and cosmic rays with star-forming interstellar gas. This will help complete the picture of how galaxies like our own came to be, and will provide tools for both future simulations and the interpretation of observations.Read moreRead less
The Carina Nebula: a massive star factory and the anchor for calibrating extragalactic star formation. Massive stars are vital to the life cycle of a galaxy, providing material and controlling the environment where new stars are made. This project will use the Australia Telescope to map the spectacular Carina Nebula, a hotbed of massive stars, to provide a picture of its stars and gas and a template for understanding star formation in distant galaxies.
Illuminating the cosmic web with Fast Radio Bursts. This project aims to establish the use of millisecond-duration Fast Radio Bursts as a wholly new means to map out the distribution of matter in the Universe. This project expects to localise 100s of bursts using novel infrastructure deployed on Australia's largest radio telescopes. Expected outcomes include an understanding of the processes that shape both the large-scale structures of the Universe, and the extreme conditions that exist at the ....Illuminating the cosmic web with Fast Radio Bursts. This project aims to establish the use of millisecond-duration Fast Radio Bursts as a wholly new means to map out the distribution of matter in the Universe. This project expects to localise 100s of bursts using novel infrastructure deployed on Australia's largest radio telescopes. Expected outcomes include an understanding of the processes that shape both the large-scale structures of the Universe, and the extreme conditions that exist at the sites of Fast Radio Bursts. This should provide significant benefits to our fundamental knowledge of the Universe, inspire students into careers in science, technology, engineering and mathematics, and develop signal processing techniques of application to both the Square Kilometre Array and industry.Read moreRead less
Deep-sea observatories for astrophysics - stardust on the ocean floor. This project aims to study the past 10 million years for unique signatures trapped in Earth’s deep ocean archives. It will investigate how and where the heavy elements are made in nature, and if nearby supernovae impacted on Earth. The project will provide a detailed time history of close-by supernova events. The set of radionuclide data can also be utilised for Earth’s climate record. The training included will provide quali ....Deep-sea observatories for astrophysics - stardust on the ocean floor. This project aims to study the past 10 million years for unique signatures trapped in Earth’s deep ocean archives. It will investigate how and where the heavy elements are made in nature, and if nearby supernovae impacted on Earth. The project will provide a detailed time history of close-by supernova events. The set of radionuclide data can also be utilised for Earth’s climate record. The training included will provide qualified researchers for many fields, such as nuclear technology, nonproliferation, medical physics and nuclear safeguards, important for national security, health and economy.Read moreRead less
Phenotypic plasticity and plant water use in a changing climate: a multi-species, multi-site investigation. Plants are highly responsive to the conditions under which they grow, but the combination of conditions they experience will be altered under climate change. This research into plant responses to the novel environments posed by climate change will examine plasticity in water-use-traits to better predict native plant tolerance of climate change.