Discovery Early Career Researcher Award - Grant ID: DE130101399
Funder
Australian Research Council
Funding Amount
$370,799.00
Summary
Eternal struggle: star formation and black hole activity in galaxies. The histories of black holes and stars in galaxies are intricately linked. This project will dissect the link between them by using supercomputer models and the world's best radio telescopes. Understanding this connection is key to figuring out how galaxies have evolved.
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
Cosmic powerhouses: The birth, death, and legacy of black hole jets. This project targets relativistic jets powered by supermassive black holes - the most powerful systems in the Universe. Theoretically, the enormous energies released have a profound influence on how galaxies evolve; empirically, observations reveal signatures of their impact across cosmic time. However, fundamental questions remain about how these jets are triggered and what impact they have on galaxies. The project will addres ....Cosmic powerhouses: The birth, death, and legacy of black hole jets. This project targets relativistic jets powered by supermassive black holes - the most powerful systems in the Universe. Theoretically, the enormous energies released have a profound influence on how galaxies evolve; empirically, observations reveal signatures of their impact across cosmic time. However, fundamental questions remain about how these jets are triggered and what impact they have on galaxies. The project will address these questions using novel supercomputer models of black hole jets in realistic cosmological environments, then confront these predictions with new data from Square Kilometre Array (SKA) pathfinding radio telescopes. This will substantially enhance Australia’s leadership capacity in a strategically important area.Read moreRead less
Geophysical, Galactic, and Extra-Galactic Science with the AuScope and Australian Pathfinder Arrays. Two new radio telescope arrays are under construction in Australia. One is the Australian Square Kilometre Array Pathfinder, near Geraldton. The other is a very long baseline array with antennae near Hobart, Katherine, and Yarragadee. These three antennae work together to observe radio sources far away across the universe. Their observations are used to establish a very accurate coordinate syste ....Geophysical, Galactic, and Extra-Galactic Science with the AuScope and Australian Pathfinder Arrays. Two new radio telescope arrays are under construction in Australia. One is the Australian Square Kilometre Array Pathfinder, near Geraldton. The other is a very long baseline array with antennae near Hobart, Katherine, and Yarragadee. These three antennae work together to observe radio sources far away across the universe. Their observations are used to establish a very accurate coordinate system or reference frame on the earth, to which the global positioning system is aligned. This program will use these new radio telescope arrays to study the Milky Way and other galaxies, and to study continental drift and sea-level rise on the Earth.Read moreRead less
Establishing the reference frame using astronomical and space-geodetic observations. Australia is increasingly dependent on spatial positioning and spatial data, yet mostly relies upon international agencies and research organisations to provide regular updates of coordinates and reference frame definition used on Earth. Improving the accuracy of the reference frame definition and our understanding of errors in the space-based measurements will provide new insights for studies of the Earth. The ....Establishing the reference frame using astronomical and space-geodetic observations. Australia is increasingly dependent on spatial positioning and spatial data, yet mostly relies upon international agencies and research organisations to provide regular updates of coordinates and reference frame definition used on Earth. Improving the accuracy of the reference frame definition and our understanding of errors in the space-based measurements will provide new insights for studies of the Earth. The research will yield results in studies of national significance, such as sea level rise, the effects of melting polar regions, and crustal deformation, as well as developing Australia's expertise in exploiting observations of the Earth from space.Read moreRead less
Lifting the Veil on Cold Planets in the Inner Galaxy. The project aims to explore a unique aspect of exoplanet detection: searches for cold planets of Earth mass and larger in the densest stellar fields of the inner Milky Way. Infrared cameras will be used to detect small planets in this extreme galactic environment. The proposed project will open a new era of infrared microlensing observations from the ground and supply critical data in preparation for the next generation of microlensing from s ....Lifting the Veil on Cold Planets in the Inner Galaxy. The project aims to explore a unique aspect of exoplanet detection: searches for cold planets of Earth mass and larger in the densest stellar fields of the inner Milky Way. Infrared cameras will be used to detect small planets in this extreme galactic environment. The proposed project will open a new era of infrared microlensing observations from the ground and supply critical data in preparation for the next generation of microlensing from space. This work directly links to the Nancy Grace Roman Telescope (2026 launch) Galactic Exoplanet Survey. Expected outcomes are a greatly improved understanding of planet formation down to terrestrial-mass planets, and improved techniques for cold planet detection with gravitational microlensing. Read moreRead less
The Occurrence of Cold Planets in the Galaxy. The project aims to explore a unique niche in exoplanet detection: searches for cold planets down to Earth mass, including ice giants and rogue free-floating planets. Infrared cameras and adaptive optics on large telescopes will be used to make accurate measurements of cold planets in diverse galactic environments. These are significant because they are completely different from most known exoplanets, being far from their host stars and unique probes ....The Occurrence of Cold Planets in the Galaxy. The project aims to explore a unique niche in exoplanet detection: searches for cold planets down to Earth mass, including ice giants and rogue free-floating planets. Infrared cameras and adaptive optics on large telescopes will be used to make accurate measurements of cold planets in diverse galactic environments. These are significant because they are completely different from most known exoplanets, being far from their host stars and unique probes of planet formation theory. Expected outcomes are a greatly improved understanding of planet formation, and improved techniques for cold planet detection with gravitational microlensing. The project will strongly benefit the next generation space-based programs planned for the next decade.Read moreRead less
Masers: high resolution probes of star formation. The largest stars in the Galaxy play a vital role in the formation of
the atoms which make life on Earth possible. The birth of these stars
is shrouded in gas and dust through which only radiowaves penetrate.
In this project we will make observations of interstellar masers from
the hydroxyl and methanol molecules and through mathematical modelling
of molecular excitation and radiative transfer probe the physical,
chemical and evolution ....Masers: high resolution probes of star formation. The largest stars in the Galaxy play a vital role in the formation of
the atoms which make life on Earth possible. The birth of these stars
is shrouded in gas and dust through which only radiowaves penetrate.
In this project we will make observations of interstellar masers from
the hydroxyl and methanol molecules and through mathematical modelling
of molecular excitation and radiative transfer probe the physical,
chemical and evolutionary status of the high-mass stars associated
with the masers.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE110100055
Funder
Australian Research Council
Funding Amount
$275,000.00
Summary
Hidden Earths and distant Suns: a new optical astronomy observatory in Tasmania. This facility at the University of Tasmania will be a remotely operable 1.3 metre optical telescope with a suite of powerful scientific cameras. It will be used to hunt for Earth-like planets around other stars and to study the variability of stars like the Sun, helping to answer fundamental questions about the Universe and our place in it.