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
Special Research Initiatives - Grant ID: SR0567321
Funder
Australian Research Council
Funding Amount
$184,781.00
Summary
Real-time Very Long Baseline Interferometry. We will develop a range of software products that are required to implement real-time very long baseline interferometry with the Australia long baseline array. These developments build upon substancial recent infrastructure investments and will place Australia at the forefront of this field. They will enhance our capacity to participate in international collaborations in a range of sciences including astrophysics, spacecraft tracking and geodetic mo ....Real-time Very Long Baseline Interferometry. We will develop a range of software products that are required to implement real-time very long baseline interferometry with the Australia long baseline array. These developments build upon substancial recent infrastructure investments and will place Australia at the forefront of this field. They will enhance our capacity to participate in international collaborations in a range of sciences including astrophysics, spacecraft tracking and geodetic monitoring.Read moreRead less
Radio Interferometer Studies of Compact Astronomical Sources. The giant black holes in the centres of distant galaxies that are the topic of this study are used to set the reference frame for geodesy on the earth. Remote and exotic as they are, they have real-world applications such as improving the positions available from GPS receivers and measuring continental drift. The signal processing equipment being developed for this new telescope is based on FPGA (field programmable gate array) chips ....Radio Interferometer Studies of Compact Astronomical Sources. The giant black holes in the centres of distant galaxies that are the topic of this study are used to set the reference frame for geodesy on the earth. Remote and exotic as they are, they have real-world applications such as improving the positions available from GPS receivers and measuring continental drift. The signal processing equipment being developed for this new telescope is based on FPGA (field programmable gate array) chips, that promise to revolutionize the data processing industry, from radar to cellular telephones to computer networks. The young scientists who are working on this project will go on to lead the commercial and industrial applications of this new technology.Read moreRead less
Transient Astronomical Sources at Radio Frequencies. Australian radio telescopes are among the finest and most modern anywhere in the world, and they are the only such instruments that can study the Southern Hemisphere sky. The University of Tasmania operates two radio observatories, at Hobart, Tas, and Ceduna, SA, that are used together to detect astronomical pulses arriving simultaneously at the two sites. The techniques of interference suppression, dispersion searching, fast sampling over b ....Transient Astronomical Sources at Radio Frequencies. Australian radio telescopes are among the finest and most modern anywhere in the world, and they are the only such instruments that can study the Southern Hemisphere sky. The University of Tasmania operates two radio observatories, at Hobart, Tas, and Ceduna, SA, that are used together to detect astronomical pulses arriving simultaneously at the two sites. The techniques of interference suppression, dispersion searching, fast sampling over broad bandwidths, and high speed data transmission between Ceduna and Hobart that will be implemented in this project have direct applications in science and the communications industry. The students who will develop this equipment will carry over their expertise to the private sector.Read moreRead less
Structure and Evolution of High Brightness Temperature Cores of Quasars and Galaxies. Interstellar scintillation, ISS, is a revolutionary new and powerful technique which we will use to study the highest brightness temperature cores of radio quasars with unprecedented angular resolution, and probe the interstellar medium of our Galaxy in a way not previously possible. The combination of scintillation and conventional VLBI allows imaging with light-month to light-year resolution across the known ....Structure and Evolution of High Brightness Temperature Cores of Quasars and Galaxies. Interstellar scintillation, ISS, is a revolutionary new and powerful technique which we will use to study the highest brightness temperature cores of radio quasars with unprecedented angular resolution, and probe the interstellar medium of our Galaxy in a way not previously possible. The combination of scintillation and conventional VLBI allows imaging with light-month to light-year resolution across the known Universe. Scintillation observations are challenging basic synchrotron physics by uncovering quasar cores with temperatures possibly as high as 10^15 K, and lifetimes many times longer than theory. The Ceduna and Hobart telescopes are cornerstones of our scintillation and VLBI proposals.
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Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0775621
Funder
Australian Research Council
Funding Amount
$494,000.00
Summary
Mileura Widefield Array: A New Low Frequency Telescope. A new radio-quiet site for international radio astronomy is being developed at Mileura in Western Australia. We have constructed a low frequency test array on the site, and established that the site is excellent for radio astronomy. We plan to build a telescope which will observe the early universe, when stars and galaxies where first born. This will be the first telescope capable of this type of measurement of the early universe. In addi ....Mileura Widefield Array: A New Low Frequency Telescope. A new radio-quiet site for international radio astronomy is being developed at Mileura in Western Australia. We have constructed a low frequency test array on the site, and established that the site is excellent for radio astronomy. We plan to build a telescope which will observe the early universe, when stars and galaxies where first born. This will be the first telescope capable of this type of measurement of the early universe. In addition, the telescope will measure the solar wind, and its potential interactions with the earth.
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Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0882938
Funder
Australian Research Council
Funding Amount
$1,430,000.00
Summary
MIRA Widefield Array: a new low frequency telescope. A new radio-quiet site for international radio astronomy is being developed at Boolardy in Western Australia. We have constructed a low frequency test array on the site, and established that the site is excellent for radio astronomy. We plan to build a telescope which will observe the early universe, when stars and galaxies where first born. This will be the first telescope capable of this type of measurement of the early universe. In additi ....MIRA Widefield Array: a new low frequency telescope. A new radio-quiet site for international radio astronomy is being developed at Boolardy in Western Australia. We have constructed a low frequency test array on the site, and established that the site is excellent for radio astronomy. We plan to build a telescope which will observe the early universe, when stars and galaxies where first born. This will be the first telescope capable of this type of measurement of the early universe. In addition, the telescope will measure the solar wind, and its potential interactions with the Earth. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0236393
Funder
Australian Research Council
Funding Amount
$175,000.00
Summary
A Gigabit per second Data Recording System for Geodesy and Astronomy. We plan to acquire a gigabit per second digital data recorder for geodesy and astronomy. We will develop a geodetic VLBI capability to provide independent confirmation of results from alternative techniques such as GPS and SLR and allow us to characterise and remove the systematic errors inherent in these systems. We will estimate motion at sites from the combination of VLBI, GPS, gravity and tide gauge data for geodynamic ef ....A Gigabit per second Data Recording System for Geodesy and Astronomy. We plan to acquire a gigabit per second digital data recorder for geodesy and astronomy. We will develop a geodetic VLBI capability to provide independent confirmation of results from alternative techniques such as GPS and SLR and allow us to characterise and remove the systematic errors inherent in these systems. We will estimate motion at sites from the combination of VLBI, GPS, gravity and tide gauge data for geodynamic effects, such as post-glacial rebound and tectonic motion and global mean sea level change.
We will increase the density of southern radio sources used to define the International Celestial Reference Frame and investigate their structure and evolution. We will make high time resolution observations of young pulsars to study the phenomena of pulsar glitches and aid in the understanding of neutron star interiors.Read moreRead less
Special Research Initiatives - Grant ID: SR0354683
Funder
Australian Research Council
Funding Amount
$10,000.00
Summary
Ocean Discovery Network. The ODN will focus research on Australia's vast marine jurisdiction by:
1. Providing a forum for developing coordinated marine research enterprises in the National Research Priority areas of biodiversity, exploitation of resources, seaway security and climate.
2. Developing innovative international research and providing a mechanism for involvement in international science programs
3. Advancing research capabilities between national and international ocean scientist ....Ocean Discovery Network. The ODN will focus research on Australia's vast marine jurisdiction by:
1. Providing a forum for developing coordinated marine research enterprises in the National Research Priority areas of biodiversity, exploitation of resources, seaway security and climate.
2. Developing innovative international research and providing a mechanism for involvement in international science programs
3. Advancing research capabilities between national and international ocean scientists with web-based data-exchange services and links to global databases
4. Facilitating the transfer of research skills to young investigators
5. Maximising multidisciplinary use of Australian ocean science capacity, particularly the National Facility Research Vessel and the RSV Aurora Australis
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Viscous Effects in Free-Surface Flows. Australia has a proud record of achievement in the field of free-surface fluid mechanics. This project will build and extend these research achievements. It will provide new information about how fluid layers overturn and mix, which is an important process in oceanography. It will examine the sloshing behaviour of fluid in moving storage tanks, which is important in fuel transport and building design. The project will develop new mathematical methods fo ....Viscous Effects in Free-Surface Flows. Australia has a proud record of achievement in the field of free-surface fluid mechanics. This project will build and extend these research achievements. It will provide new information about how fluid layers overturn and mix, which is an important process in oceanography. It will examine the sloshing behaviour of fluid in moving storage tanks, which is important in fuel transport and building design. The project will develop new mathematical methods for solving these problems accurately, and will contribute to the next generation of research mathematicians in Australia. Read moreRead less