The architecture of networks: Characterisation and visualisation of complex systems as fluctuating networks. Complex systems comprise many mutually interacting components, characterised by a range of different interactions over time and space. They are dynamical systems, whose features are reminiscent of a web, with fluctuating links of varying strengths. The natural paradigm for such systems is a generic network, or a graph. A suite of novel measures from statistical physics, graph theory, top ....The architecture of networks: Characterisation and visualisation of complex systems as fluctuating networks. Complex systems comprise many mutually interacting components, characterised by a range of different interactions over time and space. They are dynamical systems, whose features are reminiscent of a web, with fluctuating links of varying strengths. The natural paradigm for such systems is a generic network, or a graph. A suite of novel measures from statistical physics, graph theory, topology, geometry, and computer graphics will be developed to characterise system/graph growth and stability. The aim is two-fold: first to reduce real complex systems (mainly financial systems) to computationally manageable structures (including direct visualisation) and second to construct realistic models of the evolution of such systems.Read moreRead less
The Evolution of Dwarf Elliptical Galaxies: Nature or Nurture? From observations obtained at world-class facilities such as Gemini, this international team of experts will determine whether it is the intrinsic properties of dwarf Ellipticals (nature), or the influence of a neighbouring large galaxy (nurture), that determines the history of star formation in these small galaxies. Studies of local examples of this galaxy type, which may be the first objects formed in the Universe, have shown an u ....The Evolution of Dwarf Elliptical Galaxies: Nature or Nurture? From observations obtained at world-class facilities such as Gemini, this international team of experts will determine whether it is the intrinsic properties of dwarf Ellipticals (nature), or the influence of a neighbouring large galaxy (nurture), that determines the history of star formation in these small galaxies. Studies of local examples of this galaxy type, which may be the first objects formed in the Universe, have shown an unexpected and unexplained diversity of star formation histories. The outcomes of this research are relevant to the evolution of stars, the evolution of the chemical elements, and to the formation of larger galaxies.Read moreRead less
The 6dF Galaxy Survey - Mass and Motions in the Nearby Universe. The 6dF Galaxy Survey will yield by far the largest and most detailed map of the positions and motions of galaxies in the nearby universe. The goal of the survey is to determine the distributions of both the galaxies and the dark matter in order to measure fundamental cosmological parameters and constrain models of galaxy formation. The survey will cover the whole southern hemisphere, measuring redshifts for 120,000 galaxies and di ....The 6dF Galaxy Survey - Mass and Motions in the Nearby Universe. The 6dF Galaxy Survey will yield by far the largest and most detailed map of the positions and motions of galaxies in the nearby universe. The goal of the survey is to determine the distributions of both the galaxies and the dark matter in order to measure fundamental cosmological parameters and constrain models of galaxy formation. The survey will cover the whole southern hemisphere, measuring redshifts for 120,000 galaxies and distances and motions for 15,000 galaxies. The survey will use the unique 6dF robotic fibre spectrograph we have constructed for the Anglo-Australian Observatory's Schmidt Telescope.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0882778
Funder
Australian Research Council
Funding Amount
$201,224.00
Summary
Water vapour radiometers for millimetre-wave phase correction for the Australia Telescope. Australia has a tradition of excellence in astronomy. Inspired by wonder about the cosmos, it stimulates public interest in science, so leading to the training of highly skilled graduates. In turn, this drives the development of technologies needed to pursue the science. The nation has invested in the technology for millimetre-wave astronomy, building the first interferometer in our hemisphere. This equipm ....Water vapour radiometers for millimetre-wave phase correction for the Australia Telescope. Australia has a tradition of excellence in astronomy. Inspired by wonder about the cosmos, it stimulates public interest in science, so leading to the training of highly skilled graduates. In turn, this drives the development of technologies needed to pursue the science. The nation has invested in the technology for millimetre-wave astronomy, building the first interferometer in our hemisphere. This equipment will capitalise on this investment, extending the capabilities of the Australia Telescope to maintain it as a front line instrument, attracting the best scientists here to use it. This will help nurture a vigorous radio-science community, one able to actively participate in the billion-dollar investment being made internationally in the field.Read moreRead less
Discovering the First Generation of Stars in the Galaxy - The Most Metal-Poor Stars. The most metal-poor stars carry a fossil record of the early chemical and dynamical evolution of the Galaxy. The most interesting objects are those with the lowest metal abundances representing the earliest generation of stars in the Galaxy. The aim of the present project is to extend the mining of the HES objective spectra to identify extremely metal-deficient giants, which together with the already identified ....Discovering the First Generation of Stars in the Galaxy - The Most Metal-Poor Stars. The most metal-poor stars carry a fossil record of the early chemical and dynamical evolution of the Galaxy. The most interesting objects are those with the lowest metal abundances representing the earliest generation of stars in the Galaxy. The aim of the present project is to extend the mining of the HES objective spectra to identify extremely metal-deficient giants, which together with the already identified dwarfs will be further distilled using 6dF and the DBS. We anticipate trebling the total number of the most metal deficient stars known and targeting these for observations with 8m telescopes.Read moreRead less
Photonic routing with liquid crystals. Liquid crystals became a household item but their unequaled nonlocal optical properties are much less known and studied, although the breathtaking prospects of their future applications in photonics inspire many experts around the world. We will bring to Australia the state of the art research approach, theoretical and experimental, aiming to uncover and realize the potential of long range interaction between laser light and nonlocal liquid crystals for fut ....Photonic routing with liquid crystals. Liquid crystals became a household item but their unequaled nonlocal optical properties are much less known and studied, although the breathtaking prospects of their future applications in photonics inspire many experts around the world. We will bring to Australia the state of the art research approach, theoretical and experimental, aiming to uncover and realize the potential of long range interaction between laser light and nonlocal liquid crystals for futuristic all-optical devices. This project will promote and enhance the rapid development of photonics in Australia, as well as deliver foremost practical expertise and outstanding training of young researchers.Read moreRead less
Star Formation at Millimetre Wavelengths with the CSIRO Australia Telescope. The newly-upgraded CSIRO Australia Telescope Compact Array, together with the CSIRO Mopra Telescope, provide a unique and powerful combination for studying the millimetre-wave emission from molecules and cold dust in star formation regions. We propose to combine the astrophysical expertise of UNSW with the instrumental expertise of CSIRO to use these instruments to study the processes of star formation. There are two pa ....Star Formation at Millimetre Wavelengths with the CSIRO Australia Telescope. The newly-upgraded CSIRO Australia Telescope Compact Array, together with the CSIRO Mopra Telescope, provide a unique and powerful combination for studying the millimetre-wave emission from molecules and cold dust in star formation regions. We propose to combine the astrophysical expertise of UNSW with the instrumental expertise of CSIRO to use these instruments to study the processes of star formation. There are two parallel themes to this research: to commission and develop optimal techniques for using the new instruments, and to make use of them to explore the poorly-understood processes that cause stars to form.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0347403
Funder
Australian Research Council
Funding Amount
$222,000.00
Summary
An ultra-wideband digital filterbank for the Mopra Radiotelescope. We seek funding to equip the Mopra radiotelescope with an ultra-wide-bandwidth digital filter bank. This will greatly improve the efficiency of the observatory, increasing the speed at which spectroscopic data is acquired by a factor of 8, and the speed of acquiring continuum data by a factor of 32. Once equipped in this way, Mopra, which is already the largest millimetre-wave radiotelescope in the southern hemisphere, will enjo ....An ultra-wideband digital filterbank for the Mopra Radiotelescope. We seek funding to equip the Mopra radiotelescope with an ultra-wide-bandwidth digital filter bank. This will greatly improve the efficiency of the observatory, increasing the speed at which spectroscopic data is acquired by a factor of 8, and the speed of acquiring continuum data by a factor of 32. Once equipped in this way, Mopra, which is already the largest millimetre-wave radiotelescope in the southern hemisphere, will enjoy an unbeatable edge over all other competing observatories around the world through its combination of collecting area and bandpass.Read moreRead less
Novel Silicon-Based Photonic Devices. Silicon's pre-eminence in high-speed digital electronics does not extend to optoelectronics where the demand is for devices that can generate, guide, detect and process light. However, the properties of silicon are dramatically altered when it is reduced to nanometre dimensions. Advances in the understanding of such effects and in the fabrication and application of nanoscale silicon have provided the prospect of new and innovative Si-based photonic devices, ....Novel Silicon-Based Photonic Devices. Silicon's pre-eminence in high-speed digital electronics does not extend to optoelectronics where the demand is for devices that can generate, guide, detect and process light. However, the properties of silicon are dramatically altered when it is reduced to nanometre dimensions. Advances in the understanding of such effects and in the fabrication and application of nanoscale silicon have provided the prospect of new and innovative Si-based photonic devices, and of fully integrated electronic and photonic functionality. This project aims to extend the understanding of nanoscale silicon and to develop and prototype novel Si-based photonic devices based on this material.Read moreRead less
The Physical and Optical Properties of Self-Assembled Si Nanocrystals. The properties of nano-scale materials can differ significantly from those of their bulk counterparts. As such, they can provide materials with new and novel properties as well as proving a useful test of modern theories. An outstanding example of the significance of such effects is provided by quantum confined silicon structures, such as porous or nanocrystalline silicon, which exhibit luminescence efficiencies up to a milli ....The Physical and Optical Properties of Self-Assembled Si Nanocrystals. The properties of nano-scale materials can differ significantly from those of their bulk counterparts. As such, they can provide materials with new and novel properties as well as proving a useful test of modern theories. An outstanding example of the significance of such effects is provided by quantum confined silicon structures, such as porous or nanocrystalline silicon, which exhibit luminescence efficiencies up to a million times greater than bulk silicon. This project aims to understand the novel optical properties and interactions that underpin potential applications of this technologically important material.Read moreRead less