News and Events
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A High-Speed All-Sky Monitor for Fast Radio Bursts and Technosignatures
Wednesday 16 Jun 2021 @ 12:00 p.m., Zoom A/Prof. Randall Wayth, Curtin University; Email: R.Wayth[at]curtin.edu.au Abstract Fast Radio Bursts (FRB) are one of the most intriguing transient phenomena discovered in the recent years, and recently observed down to 100-MHz frequencies. I will present the first southern hemisphere all-sky real-time imaging and radio-transient monitoring system, implemented on two prototype stations of the low frequency …
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AAL Member Update to The University of Melbourne
Wednesday 09 Jun 2021 @ 12:00 p.m., Zoom Dr James Murray and Romy Pearse, Astronomy Australia Ltd; Email: rpearse[at]swin.edu.au Abstract AAL will be presenting a general update to staff at The University of Melbourne on our activities of the past year (or so), as well as current projects and funding arrangements – we will also happily take questions and encourage real-time feedback via …
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Gravitational wave astronomy on the short and long timescales
Wednesday 02 Jun 2021 @ 12:00 p.m., Zoom Dr Xingjiang Zhu, Beijing Normal University; Email: zhuxj[at]bnu.edu.cn Abstract Gravitational wave astronomy is revolutionizing our understanding of the Universe. Since the historic discovery of GW150914 five years ago, LIGO and Virgo detectors have discovered 50 compact binary merger events. These merger events, lasting from fractions of seconds to minutes, include stellar-mass binary black holes, binary …
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3D Galaxy Shape Prediction with Artificial Neural Networks
Wednesday 26 May 2021 @ 12:00 p.m., David Caro building, Level 2, Hercus Theatre (+Zoom) Dr Rob Bassett, Swinburne University; Email: rbassett[at]swin.edu.au Abstract It has been nearly a century since the great debate was put to rest by Hubble, who definitively proved that many nebulae were truly "island universes" akin to our own Milky Way. Since then, millions of galaxies have been discovered, …
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Dating Tasmanian Aboriginal astronomical traditions to 12,000 years ago
Wednesday 19 May 2021 @ 11:00 a.m., David Caro building, Level 2, Hercus Theatre (+Zoom) A Prof Duane Hamacher, University of Melbourne; Email: duane.hamacher[at]unimelb.edu.au Abstract Australia's First People developed complex knowledge systems that are committed to memory and passed to successive generations through oral tradition. The length of time oral traditions can be passed down while maintaining vitality is a topic of ongoing …
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Massive quiescent galaxies in the early universe: understanding their prevalence and physical properties
Wednesday 12 May 2021 @ 12:00 p.m., David Caro building, Level 2, Hercus Theatre (+Zoom) James Esdaile, Swinburne University; Email: jesdaile[at]swin.edu.au Abstract In the early Universe one might expect only star-forming galaxies but there is now substantial evidence that some massive galaxies have quenched star-formation within the first billion years of galaxy evolution. These massive quiescent galaxies (MQG) have proven difficult to reproduce …
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The Circumgalactic Medium at Cosmic Noon with KCWI
Wednesday 28 Apr 2021 @ 12 p.m., David Caro building, Level 2, Hercus Theatre (+Zoom) Dr Nikole M. Nielsen, Swinburne University; Email: nikolenielsen[at]swin.edu.au Abstract The star formation history of the universe reveals that galaxies most actively build their stellar mass at "cosmic noon" (z=1-3). The gas accreting onto galaxies to drive their construction and the resulting metal-enriched material ejected from these galaxies due …
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Building Confidence in Next-Generation 21cm Cosmology: A Forward-Model Approach
Wednesday 05 May 2021 @ 12:00 p.m., David Caro building, Level 2, Hercus Theatre (+Zoom) Dr Steven Murray, Arizona State University; Email: steven.g.murray[at]asu.edu Abstract 21cm cosmology is growing in momentum. New low-frequency radio telescopes able to probe the neutral hydrogen in the high-redshift Universe (z~6-30) come in two flavours: single-antennas that probe the average thermal history of the Universe (such as EDGES, SARAS …
A list of recent colloquia, with slides in some cases, can be found here.
Upcoming Monday group talks can be found at here.