BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:6
UID:UW-Physics-Event-5387
DTSTART:20200305T213000Z
DTEND:20200305T103000Z
DTSTAMP:20260504T115527Z
LAST-MODIFIED:20200304T203454Z
LOCATION:4421 Sterling Hall
SUMMARY:COLLOQUIUM CANCELLED:   The Experiment for Cryogenic Large-ape
 rture Intensity Mapping (EXCLAIM)\, Astronomy Colloquium\, Dr. Eric Sw
 itzer \, NASA/Goddard
DESCRIPTION:CANCELLED BECAUSE OF NEW NASA TRAVEL REGULATIONS REGARDING
  COVID-19 VIRUS.   RESCHEDULED FOR NOVEMBER 6.
\nThe EXperiment for Cr
 yogenic Large-Aperture Intensity Mapping (EXCLAIM) is a cryogenic ball
 oon-borne instrument that will survey galaxy and star formation histor
 y over cosmological time scales. Rather than identifying individual ob
 jects\, EXCLAIM will be a pathfinder to demonstrate an intensity mappi
 ng approach\, which measures the cumulative redshifted line emission. 
 EXCLAIM will operate at 420-540 GHz with a spectral resolution R=512 t
 o measure the integrated CO and [CII] in redshift windows spanning 0 <
  z < 3.5. CO and [CII] line emissions are key tracers of the gas phase
 s in the interstellar medium involved in star-formation processes. EXC
 LAIM will shed light on questions such as why the star formation rate 
 declines at z < 2\, despite continued clustering of the dark matter. T
 he instrument will employ an array of six superconducting integrated g
 rating-analog spectrometers (micro-spec) coupled to microwave kinetic 
 inductance detectors (MKIDs). I will present an overview of the EXCLAI
 M instrument design and status.
URL:https://www.physics.wisc.edu/events/?id=5387
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