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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-1207
DTSTART:20081031T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260506T200049Z
LAST-MODIFIED:20080922T164406Z
LOCATION:2241 Chamberlin Hall (coffee at 3:30 pm)
SUMMARY:Surveying the TeV Gamma-Ray Sky with Milagro and HAWC\, Physic
 s Department Colloquium\, Brenda Dingus\, Los Alamos National Lab
DESCRIPTION:TeV gamma rays point to Nature's astrophysical accelerator
 s.  Many of these accelerators output most of their electromagnetic en
 ergy in gamma rays\, and their output may flare by more than an order 
 of magnitude.  In order to study these TeV accelerators\, a new type o
 f detector was developed with a large field of view and >90% duty fact
 ory.  This detector\, called Milagro\, used a 5000 square meter pond o
 f water to detect Cherenkov light from extensive air showers.  Milagro
  surveyed the 2 pi sr of the Northern Hemisphere and discovered new so
 urces of TeV gamma rays as well as diffuse emission from the plane of 
 the Milky Way galaxy.    The High Altitude Water Cherenkov (HAWC) obse
 rvatory is a next-generation version of the Milagro observatory that w
 ill be built in Mexico at an altitude of 13500' and will have over 10 
 times the sensitivity of Milagro.
URL:https://www.physics.wisc.edu/events/?id=1207
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