The morphological evolution of galaxies over cosmic time. Present-day galaxies look either red and round or blue and disc-like; this project will study galaxies that existed when the universe was one quarter its present age to understand how these different structures came about. To do this, the project will use a new high resolution near-infrared camera built at The Australian National University.
Galactic Archaeology: A Radial Velocity Experiment to Unveil the History of the Milky Way. The ambitious RAdial Velocity Experiment (RAVE) will measure velocities and chemical properties of 50 million stars in the period 2006-2010 - 2000 times the number measured throughout history. RAVE will use a new-technology Australian fiber spectrometer at the Siding Spring UK Schmidt Telescope. A key demonstrator for RAVE is our proposed pilot survey using existing instruments to measure 100,000 stars - a ....Galactic Archaeology: A Radial Velocity Experiment to Unveil the History of the Milky Way. The ambitious RAdial Velocity Experiment (RAVE) will measure velocities and chemical properties of 50 million stars in the period 2006-2010 - 2000 times the number measured throughout history. RAVE will use a new-technology Australian fiber spectrometer at the Siding Spring UK Schmidt Telescope. A key demonstrator for RAVE is our proposed pilot survey using existing instruments to measure 100,000 stars - already 20 times larger than any previous survey - providing unique chemical and kinematical fingerprints of our Galaxy's formation. This is critical for determining the optimum observing strategy, data management, and software pipeline, before embarking on the full survey in 2006.Read moreRead less
The Last 8 Billion Years of Cosmic Evolution. A key factor in Australia's international prominence in astronomy has been the development and use of innovative instrumentation on its telescopes to undertake major leading-edge surveys. This project will enhance this reputation by using the new AAOmega facility on the 3.9m Anglo-Australian Telescope to make the largest ever survey of galaxies in the distant universe. This will allow us to address the two most important issues in cosmology today - ....The Last 8 Billion Years of Cosmic Evolution. A key factor in Australia's international prominence in astronomy has been the development and use of innovative instrumentation on its telescopes to undertake major leading-edge surveys. This project will enhance this reputation by using the new AAOmega facility on the 3.9m Anglo-Australian Telescope to make the largest ever survey of galaxies in the distant universe. This will allow us to address the two most important issues in cosmology today - the nature of the "dark energy" that is causing the universe's expansion to accelerate, and the detailed role of dark matter in galaxy formation and evolution. Read moreRead less
The fundamental physics governing the formation of cosmic structure. This project will investigate the physics that underlie three of the most fundamental processes within the universe - its accelerated expansion, the formation of cosmic structure, and galaxy formation - thereby contributing to the Priority Goal of Breakthrough Science under National Research Priority 3. It will involve world-leading research in these areas, enabled by innovative instrumentation on Australia's national telescope ....The fundamental physics governing the formation of cosmic structure. This project will investigate the physics that underlie three of the most fundamental processes within the universe - its accelerated expansion, the formation of cosmic structure, and galaxy formation - thereby contributing to the Priority Goal of Breakthrough Science under National Research Priority 3. It will involve world-leading research in these areas, enabled by innovative instrumentation on Australia's national telescope facilities. National benefit will also come via the collaborations it will involve with prestigious North American institutions. These collaborations will lead to new research capability being built within Australia, through knowledge and expertise being vested in young postgraduate and postdoctoral researchers.Read moreRead less
An upgraded pulsar timing array for gravitational wave detection. Millisecond pulsars are remarkably regularly-rotating neutron stars that offer the opportunity to detect gravitational waves via the technique known as pulsar timing. Australia has long been a world leader in the discovery and timing of millisecond pulsars, and the Parkes pulsar timing array is one of three major programmes in the world aimed at making the first direct detection of gravitational waves in any frequency band. This p ....An upgraded pulsar timing array for gravitational wave detection. Millisecond pulsars are remarkably regularly-rotating neutron stars that offer the opportunity to detect gravitational waves via the technique known as pulsar timing. Australia has long been a world leader in the discovery and timing of millisecond pulsars, and the Parkes pulsar timing array is one of three major programmes in the world aimed at making the first direct detection of gravitational waves in any frequency band. This project is designed to capitalise on Australia's position of strength in this field by extending the Parkes Pulsar Timing Array dataset (PPTA) so that it has the best chance of detecting gravitational waves in the nanohertz regime until the SKA pathfinders start to come online in 2017.Read moreRead less
What regulates star formation? Why does the Galaxy only make one new star per year, when it has enough material to make hundreds? This project will perform computer simulations of the slow drama unfolding in the stellar nurseries of the Milky Way, to understand what sets the rate and efficiency of star formation.
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
Nucleosynthesis of low and intermediate mass stars: A study into the origin of the elements. Everything in our Solar System, including the Sun and all life on Earth, were created out of material forged long ago in fiery stellar furnaces. In the hot dense cores of long dead stars the material most vital to life was created. However, the stellar origin of many elements is unknown although we can make guesses, from observations of stars and by bringing together ideas from different scientific fiel ....Nucleosynthesis of low and intermediate mass stars: A study into the origin of the elements. Everything in our Solar System, including the Sun and all life on Earth, were created out of material forged long ago in fiery stellar furnaces. In the hot dense cores of long dead stars the material most vital to life was created. However, the stellar origin of many elements is unknown although we can make guesses, from observations of stars and by bringing together ideas from different scientific fields including astrophysics, nuclear physics and geochemistry. Using the latest theoretical techniques together with the most recent experimental data, it is possible to piece together the clues
to unravel the mystery of the origin of the elements.
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Calibrating Cosmology: The Near-Field Approach to Galaxy Formation. Understanding the formation and evolution of structure in the early Universe continues to elude astronomers. Studying these earliest epochs is the driver for billion-dollar investments like the Next Generation Space Telescope and the Square Kilometre Array (with Australia as a primary partner). Our complementary 'near-field cosmology' project is unique, blending strengths in computational cosmology, stellar nucleosynthesis, and ....Calibrating Cosmology: The Near-Field Approach to Galaxy Formation. Understanding the formation and evolution of structure in the early Universe continues to elude astronomers. Studying these earliest epochs is the driver for billion-dollar investments like the Next Generation Space Telescope and the Square Kilometre Array (with Australia as a primary partner). Our complementary 'near-field cosmology' project is unique, blending strengths in computational cosmology, stellar nucleosynthesis, and optical astronomy, to 'deconstruct' the formation history of the one galaxy with detailed chemical and kinematical information - our own Milky Way. Combining theory and observation, cosmology and nucleosynthesis, we will produce the template for galaxy formation, providing the anchor for 'far-field' cosmology.Read moreRead less
Utilising artificial intelligence to elucidate the physics of galaxies. For decades astronomers have puzzled over the connection between the structure and evolution of galaxies and the role played by host environments. This project aims to resolve this problem by combining multi-wavelength observations, multi-component simulations, and pioneering data analysis using artificial intelligence. In particular, we target the nearby Fornax galaxy cluster as a laboratory for studying galaxy formation in ....Utilising artificial intelligence to elucidate the physics of galaxies. For decades astronomers have puzzled over the connection between the structure and evolution of galaxies and the role played by host environments. This project aims to resolve this problem by combining multi-wavelength observations, multi-component simulations, and pioneering data analysis using artificial intelligence. In particular, we target the nearby Fornax galaxy cluster as a laboratory for studying galaxy formation in dense environments. Using our novel machine learning techniques, we will elucidate the physical mechanisms that drive the rapid evolution of star formation, galactic nuclei, and gas and dust content within Fornax. Our predictions will benefit ongoing and future surveys at the national and international level. Read moreRead less