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Dr Gavin Rowell (School of Physical Sciences, University of Adelaide)30/11/2022, 10:30
I will present an update on the status of CTA.
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Sabrina Einecke (The University of Adelaide, Australia)30/11/2022, 10:50
CTAO's first Science Data Challenge (SDC) us currently in preparation. It will provide simulated science-ready (DL3) data products of a complex and realistic gamma-ray sky. The main objectives are to enable a broad scientific community to become familiar with the CTAO data products and scientific analysis tools, to serve as a test bed to for driving forward new algorithms and to verify...
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Nick Tothill (Western Sydney University)30/11/2022, 11:10
Optical polarimetry is an identified area in which Australia can contribute to CTA. We are planning to construct a prototype polarimeter to be installed on one or more Australian optical telescopes. I will summarise the rationale for the project, give an update on our progress on potential telescope collaborators, and discuss the design process for the instrument.
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Simon Lee (School of Physical Sciences, University of Adelaide)30/11/2022, 12:00
An Imaging Air Cherenkov Telescope (IACT) site in Australia, as part of a worldwide network of IACTs, would be crucial for achieving 24-hour all-sky coverage of the GeV to TeV sky for transient followup and continuous source monitoring. Extending on previous work which compared the performance of different small IACT array configurations, the effect of implementing a stereoscopic trigger to...
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Tristan Betterman (The University of Adelaide)30/11/2022, 12:10
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Peter Marinos (University of Adelaide)30/11/2022, 12:20
We use the simulation software "GALPROP" to model the Milky Way's diffuse TeV gamma-ray emission and how the diffuse emission will vary over time. We compare GALPROP's predictions to observational data, investigating how the emission will impact the forthcoming CTA Observatory's Galactic plane survey.
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Ryan Burley (The University of Adelaide)30/11/2022, 12:30
High-energy gamma rays and neutrinos can be produced due to the hadronic interactions between protons escaping particle accelerators such as supernova remnants (SNRs) and nearby target material such as molecular clouds (MCs). By modelling the diffusion of protons escaping SNRs and interacting with nearby MCs in our Galaxy, we can predict the resulting gamma-ray and neutrino fluxes at Earth....
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Tiffany Collins (The University of Adelaide)30/11/2022, 12:35
HESS J1825-137 is one of the most powerful and luminous TeV gamma-ray pulsar wind nebulae (PWN). This makes HESS J1825-137 an excellent laboratory to study particle transportation in and around the powering pulsar. We have modelled the diffusive and advective transport of electrons from the powering pulsar, PSR 1826-1334. The resulting X-ray and gamma-ray emission was predicted through...
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Csaba Balazs (School of Physics and Astronomy, Monash University)30/11/2022, 12:40
In our Bayesian WIMP detection project, we're refining our results published in 2112.10371.
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Gabriel Collin (The University of Adelaide)30/11/2022, 13:40
I will present a new statistical approach to the problem of inferring the properties of point-source populations. This method will be shown to be superior to existing methods in the context of X-ray astronomy.
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Shi Dai (Western Sydney University)30/11/2022, 14:00
The globular cluster Omega Centauri is the most massive and luminous cluster in the Galaxy. The gamma-ray source FL8Y 1326.7-4729 is coincident with the core of the cluster, leading to speculation that hitherto unknown radio pulsars or annihilating dark matter may be present in the cluster core. We discovered five millisecond pulsars (MSPs) in Omega Centauri and have been monitoring these...
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Roland Crocker (Research School of Astronomy and Astrophysics, Australian National University)30/11/2022, 14:20
Terzan 5 has the largest population of millisecond pulsars of any globular cluster in the Galaxy. It is also unique in having an associated TeV source. The centroid of the TeV source, however, is measurably displaced away from the cluster. I will discuss a scenario motivated by cosmic ray transport physics than explains this peculiar displacement.
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Dr Ashley Ruiter (University of New South Wales Canberra)30/11/2022, 15:10
A brief update on the status of very high energy gamma ray detection from novae with the CTA will be given.
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Miroslav Filipovic (Western Sydney University)30/11/2022, 15:20
This is an exciting time for the discovery of SNRs in our and other nearby galaxies. I will report the discovery of J0624-6948, a low-surface brightness radio ring, lying between the Galactic Plane and the Large Magellanic Cloud (LMC). It was first detected at 888 MHz with the Australian Square Kilometre Array Pathfinder (ASKAP), and with a diameter of ~196 arcsec. This source has...
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Sanja Lazarevic (Western Sydney University)30/11/2022, 15:40
Pulsars lose rotational energy through a wind of ultrarelativistic particles, and the synchrotron emission that arises will be observable in the form of a pulsar wind nebula (PWN). For a pulsar moving supersonically through the ambient medium, the PWN is characterised by a bow-shock shape around the pulsar and cometary tail. Currently, there are approximately 30 objects of this type, and...
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Dr Gavin Rowell (School of Physical Sciences, University of Adelaide), Sabrina Einecke (The University of Adelaide, Australia)30/11/2022, 16:00
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James Murray (AAL)
How does the CTA fit in to the government's priorities for investing in national research infrastructure. The 2021 Research Infrastructure Roadmap was released in April 2022(!) and the budgetary response will be in 2023. How does the CTA fit in with the priorities in that document?
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