BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//INPA - ECPv6.8.3//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:INPA
X-ORIGINAL-URL:https://inpa.lbl.gov
X-WR-CALDESC:Events for INPA
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Los_Angeles
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20180311T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20181104T090000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181130T120000
DTEND;TZID=America/Los_Angeles:20181130T130000
DTSTAMP:20260526T152210
CREATED:20180917T155355Z
LAST-MODIFIED:20181128T223200Z
UID:436-1543579200-1543582800@inpa.lbl.gov
SUMMARY:Simon Foreman (CITA\, Toronto) - Gravitational lensing of line intensity maps
DESCRIPTION:Gravitational lensing of the cosmic microwave background (CMB) has emerged as a powerful cosmological probe\, made possible by the development and characterization of nearly-optimal estimators for extracting the lensing signal from temperature and polarization maps. One can ask whether similar tools can be applied to upcoming “intensity maps” of emission lines at various wavelengths (e.g. 21cm). In this talk\, I will present recent work in this direction\, focusing in particular on the impact of nonlinear gravitational clustering on standard CMB lensing estimators when applied to intensity maps. I will show how these nonlinearities can provide a significant contaminant to lensing reconstruction\, but will also describe how this contamination can largely be mitigated by modifying the lensing estimator. Finally\, I will present estimates for the detectability of lensing in ongoing and future intensity mapping surveys\, and highlight related work on reconstructing large-angle information in galaxy surveys and CMB maps.
URL:https://inpa.lbl.gov/event/simon-foreman-cita-toronto/
LOCATION:50A-5132- Sessler\, 50A-5132 Sessler Conference Room\, CA
ORGANIZER;CN="Kawana Yancey":MAILTO:kyancey@lbl.gov
END:VEVENT
END:VCALENDAR