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DTSTART;TZID=Australia/Sydney:20210818T150000
DTEND;TZID=Australia/Sydney:20210818T160000
DTSTAMP:20260515T120929
CREATED:20250819T102205Z
LAST-MODIFIED:20250819T102205Z
UID:14994-1629298800-1629302400@www.atnf.csiro.au
SUMMARY:S&A Colloquium: Shivani Bhandari (CSIRO)
DESCRIPTION:Fast Radio Bursts with the Australian SKA Pathfinder\n\nAbstract\n\nFast radio bursts (FRBs) are amongst the most energetic transients in our Universe\, but despite several plausible models\, their origin remains a mystery. In the absence of multi-wavelength counterparts to extragalactic FRBs\, analyses of their host galaxy environments are presently the most informative path to identifying their progenitor systems. Thanks to recent advances using the Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope we can now routinely localise FRBs to the galaxies they originate form\, and in some cases even pinpoint the burst to a region within the galaxy. In addition\, localising FRBs to their host galaxies allows us to use them as probes to trace the ionised gas in galaxy haloes\, large-scale structure and the inter-galactic medium. In this talk\, I will briefly review our current understanding of the FRB phenomena\, highlighting the role of FRB searches and localisation with ASKAP. \nWatch recording\nEvent details\nDownload iCal\nCategory\nColloquia
URL:https://www.atnf.csiro.au/event/sa-colloquium-shivani-bhandari-csiro/
LOCATION:NSW
CATEGORIES:Colloquia
ATTACH;FMTTYPE=image/jpeg:https://www.atnf.csiro.au/wp-content/uploads/2024/12/Colloq-18082021.jpg
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DTSTART;TZID=Australia/Sydney:20210825T150000
DTEND;TZID=Australia/Sydney:20210825T160000
DTSTAMP:20260515T120929
CREATED:20250819T102147Z
LAST-MODIFIED:20250819T102148Z
UID:14993-1629903600-1629907200@www.atnf.csiro.au
SUMMARY:S&A Colloquium: Nichole Barry (University of Melbourne)
DESCRIPTION:Investigating Traditional Radio Astronomy Techniques in an EoR Context\n\nAbstract\n\nDetecting the Epoch of Reionisation is a major directive of the future SKA\, and an active area of research for SKA-precursors including the MWA. However\, measuring the 21cm signal of primordial hydrogen requires a delicate intersection of precision\, sensitivity\, and advanced mathematical techniques. We investigate previous standards of radio astronomy software in order to understand their inherent level of error and to determine requirements for the MWA and subsequently the SKA. \n\n In particular\, interferometers measure millions and millions of visibilities every minute\, which live neither in image space nor fully Fourier space. Thus\, many of our analysis techniques revolve around the use of FFTs and histogramming procedures. However\, given the faint\, spectral nature of the signal we are trying to detect\, we show ways that these traditional techniques fail to reach the required precision. \nWatch recording\nEvent details\nDownload iCal\nCategory\nColloquia
URL:https://www.atnf.csiro.au/event/sa-colloquium-nichole-barry-university-of-melbourne/
LOCATION:NSW
CATEGORIES:Colloquia
ATTACH;FMTTYPE=image/jpeg:https://www.atnf.csiro.au/wp-content/uploads/2024/12/Colloq-25082021.jpg
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