Revealing the Unseen Universe with Gravitational Lensing. This project will analyse new Australian led observations from the Hubble Space Telescope of light being bent around massive galaxies by gravity. To analyse these images we must develop advanced physical models and statistical techniques. This analysis will give us highly magnified views of early galaxy evolution revealing physical details otherwise impossible to see. It will also allow us to put constraints on the nature of invisible dar ....Revealing the Unseen Universe with Gravitational Lensing. This project will analyse new Australian led observations from the Hubble Space Telescope of light being bent around massive galaxies by gravity. To analyse these images we must develop advanced physical models and statistical techniques. This analysis will give us highly magnified views of early galaxy evolution revealing physical details otherwise impossible to see. It will also allow us to put constraints on the nature of invisible dark matter with the possibility of detecting warm dark matter signatures and enable us to probe the expansion of the Universe, testing whether the unseen dark energy is evolving in time. The Hubble sample is much larger and a major advance on previous work, and enables breakthrough science in these areas.Read moreRead less
Uncovering the First Stars and Galaxies with the James Webb Space Telescope. This project aims to find "First Light": the first stars and galaxies that formed after the Big Bang. Understanding the astrophysics of the first galaxies, their explosive growth, and how they set ablaze the remaining gas in the Universe have long been among the most important unsolved mysteries of astronomy. Decades in the making, the launch of the James Webb Space Telescope in December 2021 marks a watershed moment. T ....Uncovering the First Stars and Galaxies with the James Webb Space Telescope. This project aims to find "First Light": the first stars and galaxies that formed after the Big Bang. Understanding the astrophysics of the first galaxies, their explosive growth, and how they set ablaze the remaining gas in the Universe have long been among the most important unsolved mysteries of astronomy. Decades in the making, the launch of the James Webb Space Telescope in December 2021 marks a watershed moment. This project uses privileged access to the revolutionary space telescope to find "First Light" and contribute to rewriting the first chapter of our cosmic history. The project is expected to significantly enhance Australia's international standing through leadership in use of the world's flagship scientific facility.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE230101069
Funder
Australian Research Council
Funding Amount
$433,219.00
Summary
Awakening giants in galaxies: Using stars to probe supermassive black holes. This project aims to understand the unexplored population of non-active or quiescent supermassive black holes (SMBHs) using tidal disruption events - the multi-wavelength outburst resulting from a star being ripped apart by the tidal forces of the SMBH. This project will increase our understanding of the transient and accretion properties of SMBHs in a broad range of galaxies, while the expected outcomes include novel t ....Awakening giants in galaxies: Using stars to probe supermassive black holes. This project aims to understand the unexplored population of non-active or quiescent supermassive black holes (SMBHs) using tidal disruption events - the multi-wavelength outburst resulting from a star being ripped apart by the tidal forces of the SMBH. This project will increase our understanding of the transient and accretion properties of SMBHs in a broad range of galaxies, while the expected outcomes include novel techniques for distinguishing different types of extreme SMBH emission and characterisation of the environments where these extreme transient events occur. These outcomes will facilitate the identification of transient SMBH events and enhance the scientific return of the next generation of international optical surveys.Read moreRead less
Unveiling the dead and dusty Universe with the James Webb Space Telescope. This project aims to find the earliest dead and dust obscured galaxies in the Universe. Understanding their astrophysics, explosive growth, and demise have long been among the most important unsolved mysteries of astronomy. Decades in the making, the imminent availability of the James Webb Space Telescope mid-2022 marks a watershed moment. This project uses guaranteed access to the revolutionary space telescope to discove ....Unveiling the dead and dusty Universe with the James Webb Space Telescope. This project aims to find the earliest dead and dust obscured galaxies in the Universe. Understanding their astrophysics, explosive growth, and demise have long been among the most important unsolved mysteries of astronomy. Decades in the making, the imminent availability of the James Webb Space Telescope mid-2022 marks a watershed moment. This project uses guaranteed access to the revolutionary space telescope to discover the first dead galaxies and unveil the previously hidden "dusty" galaxies and shed light on their suspected evolutionary link. The project is expected to significantly enhance Australia's international standing through leadership in use of the world's flagship scientific facility.Read moreRead less
Weighing the Giants: Using Galaxy Clusters to understand Dark Energy. This project seeks to reveal the nature of dark energy and thereby explain what is causing expansion of the Universe to accelerate. The project will develop new deep machine learning techniques to weigh galaxy clusters, and apply them to data from the SPT-3G experiment at the South Pole. By comparing theoretical predictions to the observed numbers and masses of galaxy clusters, the project will help determine whether the accel ....Weighing the Giants: Using Galaxy Clusters to understand Dark Energy. This project seeks to reveal the nature of dark energy and thereby explain what is causing expansion of the Universe to accelerate. The project will develop new deep machine learning techniques to weigh galaxy clusters, and apply them to data from the SPT-3G experiment at the South Pole. By comparing theoretical predictions to the observed numbers and masses of galaxy clusters, the project will help determine whether the acceleration is due to dark energy or a breakdown in general relativity. The data science training received by students and researchers on the project will also contribute to a highly skilled STEM workforce for Australia.
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Discovery Early Career Researcher Award - Grant ID: DE130101252
Funder
Australian Research Council
Funding Amount
$369,024.00
Summary
New high precision, direct measurement of the dark matter distribution. How do you measure what you cannot see? Using a radically new and exquisitely sensitive technique called Direct Shear Mapping, which works by measuring the curvature of space-time around massive objects, this project will make the first ever direct measurements of the dark matter halos surrounding approximately 100 individual galaxies in the local Universe.
Unraveling the Mystery of Dark Energy with Galaxy Clusters. The abundance of galaxy clusters, the most massive collapsed objects in the Universe, is exponentially sensitive to how structure forms. This project aims to discover massive galaxy clusters out to their redshift of formation in 2500 square degrees of sky using the Sunyaev-Zel'dovich effect. Galaxy clusters will be weighed using multi-frequency observations and the observed abundance of galaxy clusters will be used as a function of mass ....Unraveling the Mystery of Dark Energy with Galaxy Clusters. The abundance of galaxy clusters, the most massive collapsed objects in the Universe, is exponentially sensitive to how structure forms. This project aims to discover massive galaxy clusters out to their redshift of formation in 2500 square degrees of sky using the Sunyaev-Zel'dovich effect. Galaxy clusters will be weighed using multi-frequency observations and the observed abundance of galaxy clusters will be used as a function of mass to address two fundamental questions in cosmology: what are the neutrino masses? and what is the nature of the dark energy that is driving the accelerating expansion of the Universe? The project will train young researchers in big data methods at the cutting edge of modern cosmology.Read moreRead less