BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Bishop's University - ECPv5.1.6//NONSGML v1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Bishop's University X-ORIGINAL-URL: X-WR-CALDESC:Events for Bishop's University BEGIN:VTIMEZONE TZID:America/Toronto BEGIN:DAYLIGHT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT DTSTART:20200308T070000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:EST DTSTART:20201101T060000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;VALUE=DATE:20201012 DTEND;VALUE=DATE:20201013 DTSTAMP:20200917T174133 CREATED:20200224T200511Z LAST-MODIFIED:20200224T200511Z SUMMARY:Thanksgiving (no classes) DESCRIPTION: URL: LOCATION:Bishop’s University\, 2600 Rue College\, Sherbrooke\, Québec\, J1M 1Z7\, Canada CATEGORIES:Academic Calendar ORGANIZER;CN="Registrar" GEO:45.365685;-71.849355 X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Bishop’s University 2600 Rue College Sherbrooke Québec J1M 1Z7 Canada;X-APPLE-RADIUS=500;X-TITLE=2600 Rue College:geo:-71.849355,45.365685 END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Toronto:20200918T143000 DTEND;TZID=America/Toronto:20200918T143000 DTSTAMP:20200917T174133 CREATED:20200911T175608Z LAST-MODIFIED:20200911T175608Z SUMMARY:Physics & Astronomy Seminar: Learning Around Galactic Foregrounds DESCRIPTION:Samuel Gagnon-Hartman\, \nBishop’s University \nThe highly-redshifted 21 cm neutral hydrogen emission line is widely accepted as a potent probe of the early universe\, particularly the Epoch of Reionization. This cosmological signal is obfuscated by intragalactic sources\, which are 10^5 times brighter than the desired signal. It has been demonstrated that these galactic foregrounds are confined to a particular region of cylindrical Fourier space dubbed “the wedge”. Various techniques have been proposed to recover the lost cosmological information within the wedge by closely modelling the Milky Way’s radio footprint. I demonstrate that after simply deleting all information within the wedge\, a Convolutional Neural Network may be trained to recover the lost cosmological information by exploiting the non-Gaussianity of the cosmological signal. \nIf you are interested in joining in this seminar\, please contact Jean Porter at to obtain the zoom link. URL: LOCATION:Online CATEGORIES:Physics ORGANIZER;CN="Physics%20Department" END:VEVENT END:VCALENDAR