Testing pulsar emission models and general relativity at pico arcsecond resolution. A holographic technique has been pioneered that harnesses scattering in interstellar space to resolve the emission from pulsars at a resolution of 50 pico-arcseconds, six orders of magnitude finer than has been achieved by conventional radio astronomical interferometry. This project will directly measure the size of the emission regions in a set of pulsars, and hence resolve the 40-year old debate regarding the s ....Testing pulsar emission models and general relativity at pico arcsecond resolution. A holographic technique has been pioneered that harnesses scattering in interstellar space to resolve the emission from pulsars at a resolution of 50 pico-arcseconds, six orders of magnitude finer than has been achieved by conventional radio astronomical interferometry. This project will directly measure the size of the emission regions in a set of pulsars, and hence resolve the 40-year old debate regarding the site of their radio emission. The project will also apply the technique to binary pulsar systems to provide a new test of General Relativity.Read moreRead less
Controlling parametric instabilities in advanced GW detectors. This project aims to solve the problem of parametric instability in gravitational wave detectors to support an international large-scale physics experiment. The project is part of Australia’s participation in the new advanced LIGO (Laser Interferometer Gravitational-Wave Observatory) gravitational wave detectors that have been designed to achieve the first detection of gravitational waves. A 2005 prediction made by the project leader ....Controlling parametric instabilities in advanced GW detectors. This project aims to solve the problem of parametric instability in gravitational wave detectors to support an international large-scale physics experiment. The project is part of Australia’s participation in the new advanced LIGO (Laser Interferometer Gravitational-Wave Observatory) gravitational wave detectors that have been designed to achieve the first detection of gravitational waves. A 2005 prediction made by the project leaders that the detectors would experience acoustic instabilities was confirmed during detector commissioning in 2014. The project team plans to work closely with the detector designers and commissioners to solve this problem and allow the detectors to achieve their target sensitivity.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
Three-Mode interactions and optical springs in high power optical cavities. Gravitational waves are tiny vibrations of space and time which carry vast energy. They will allow the first direct observation of black holes. To make frequent detections this project will harness the force of intense laser light, and use this force to improve the sensitivity of gravitational wave detectors.
Enhancing gravitational wave detector sensitivity and bandwidth for astronomy. This project aims to create small optomechanical devices that amplify the signals in gravitational wave detectors, increasing their sensitivity, especially for higher frequency signals. Calibrated against the 2015 first detection of gravitational waves from black hole mergers, this technology could allow humanity to listen to black holes merging up to 30 times every day, while giving much greater sensitivity to signal ....Enhancing gravitational wave detector sensitivity and bandwidth for astronomy. This project aims to create small optomechanical devices that amplify the signals in gravitational wave detectors, increasing their sensitivity, especially for higher frequency signals. Calibrated against the 2015 first detection of gravitational waves from black hole mergers, this technology could allow humanity to listen to black holes merging up to 30 times every day, while giving much greater sensitivity to signals from smaller black holes and neutron stars. The new technology, which uses nano-scale suspended tiny mirrors controlled by laser light, is likely to have applications in making sensors and quantum devices for advanced instrumentation, improve mineral exploration and measure tiny electromagnetic signals.Read moreRead less
Detection and Localisation of Gravitational Waves using Pulsar Timing Array. This project aims to contribute to one of the most significant breakthroughs in science - the direct detection of gravitational waves. It will develop innovative techniques to detect and localise gravitational waves in the nanohertz frequency band from radio timing data of millisecond pulsars. The technique developed by this project will help maximise the scientific output of Australia's legendary Parkes Radio Telescope ....Detection and Localisation of Gravitational Waves using Pulsar Timing Array. This project aims to contribute to one of the most significant breakthroughs in science - the direct detection of gravitational waves. It will develop innovative techniques to detect and localise gravitational waves in the nanohertz frequency band from radio timing data of millisecond pulsars. The technique developed by this project will help maximise the scientific output of Australia's legendary Parkes Radio Telescope, and boost the opportunities of the first detections of gravitational waves using the upcoming radio telescopes, Five hundred meter Aperture Spherical Telescope (FAST) and Square Kilometre Array (SKA).Read moreRead less
Capturing gravitational wave and electromagnetic flashes from binary merger. This project aims to contribute to one of the most momentous and long-anticipated discoveries in physics: the first detection of gravitational waves. The project plans to develop innovative technologies to detect gravitational waves using laser interferometers and enable prompt follow-up observations of gravitational wave sources by conventional telescopes. The outcome of this research would greatly help probe the natur ....Capturing gravitational wave and electromagnetic flashes from binary merger. This project aims to contribute to one of the most momentous and long-anticipated discoveries in physics: the first detection of gravitational waves. The project plans to develop innovative technologies to detect gravitational waves using laser interferometers and enable prompt follow-up observations of gravitational wave sources by conventional telescopes. The outcome of this research would greatly help probe the nature of matter and gravity at extreme densities.Read moreRead less
Precision tests of fundamental physics at the electroweak unification scale. The project aims to advance novel precision frequency generation and measurement techniques beyond the present state of the art, through the implementation of sapphire and quartz bulk acoustic wave resonator and related technology at low temperature. The project plans to apply this technological advancement to extremely sensitive tests of General Relativity able to probe suppressed effects emanating from the Planck scal ....Precision tests of fundamental physics at the electroweak unification scale. The project aims to advance novel precision frequency generation and measurement techniques beyond the present state of the art, through the implementation of sapphire and quartz bulk acoustic wave resonator and related technology at low temperature. The project plans to apply this technological advancement to extremely sensitive tests of General Relativity able to probe suppressed effects emanating from the Planck scale. Such tests include new tests of Lorentz invariance violations of photons and phonons, tests of fundamental constant invariance and other tests of fundamental physics. Results could lead to the discovery of the correct theory of quantum gravity, a major unsolved problem in contemporary physics.Read moreRead less
Real-time signal processing and distributed robotic telescope networking for co-detection of gravitational waves and their optical counterparts. An international collaboration of scientists will employ a global network of telescopes and detectors to search for ripples in space-time. The project will use novel computational tools to study exotic phenomena in the distant Universe.