BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Australia Telescope National Facility - ECPv6.16.4.1//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://www.atnf.csiro.au
X-WR-CALDESC:Events for Australia Telescope National Facility
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Australia/Sydney
BEGIN:STANDARD
TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:20250405T160000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:20251004T160000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:20260404T160000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:20261003T160000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
DTSTART:20270403T160000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:20271002T160000
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Australia/Sydney:20260624T150000
DTEND;TZID=Australia/Sydney:20260624T160000
DTSTAMP:20260619T070136Z
CREATED:20260619T070135Z
LAST-MODIFIED:20260619T070136Z
UID:19214-1782313200-1782316800@www.atnf.csiro.au
SUMMARY:S&A Colloquium: Hariharan Krishnan (SKAO)
DESCRIPTION:Enabling Next-Generation Solar and Heliospheric Science with SKA-Low Signal Processing\n\nAbstract: \n\nThe Square Kilometre Array-Low (SKA-Low) telescope represents a transformative leap forward for low-frequency radio astronomy. Operating across the 50–350 MHz band with 131\,072 dual-polarization log-periodic dipole antennas grouped into 512 Low-Frequency Aperture Array (LFAA) stations\, the array presents unprecedented digital signal processing challenges. At the heart of this system lies a tightly integrated digital signal chain. Within the Signal Processing Subsystem (SPS)\, broadband analog RF signals from the antenna are digitized at high dynamic range and channelized through a polyphase filterbank producing coarse frequency channels that optimise data transport efficiency for the station beamformer module. The ensemble of station beams are then processed by the Central Signal Processor (CSP) Correlator and Beamformer (CBF) to generate full-polarization visibilities for high-fidelity imaging and narrow\, high-time-resolution tied-array beams. \n\nThis talk provides an overview of how this signal chain architecture interfaces with frontier solar and heliospheric observations. SKA-Low’s dense short-baseline configuration and broad instantaneous bandwidth offer the raw capability for sub-second imaging spectroscopy of impulsive solar radio emission and Coronal Mass Ejections (CMEs)\, alongside high-cadence observations of interplanetary scintillation (IPS) to probe the dynamic solar wind. However\, physical interpretation in this low-frequency regime is intrinsically shaped by propagation effects\, including scattering\, refraction\, and magneto-ionic mode coupling within the coronal plasma. I will outline the direct mapping between the Low telescope digital signal processing capabilities and the science enabled in the solar and heliospheric context\, while highlighting the resulting limits on physical inference. \nJoin Event on Microsoft Teams\nLocation\n\nOrganiser\n\nEvent details\nDownload iCal\nCategory\nColearnia
URL:https://www.atnf.csiro.au/event/sa-colloquium-hariharan-krishnan-skao/
LOCATION:Marsfield Lecture Theatre\, 26 Pembroke Road\, Marsfield\, NSW\, 2122\, Australia
CATEGORIES:Colloquia
ORGANIZER;CN="Jishnu Thekkeppattu":MAILTO:Jishnunambissan.Thekkeppattu@csiro.au
END:VEVENT
END:VCALENDAR