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PRODID:-//LBNL Physics Division Research Progress Meetings - ECPv6.8.3//NONSGML v1.0//EN
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X-ORIGINAL-URL:https://rpm.physics.lbl.gov
X-WR-CALDESC:Events for LBNL Physics Division Research Progress Meetings
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TZID:UTC
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TZOFFSETFROM:+0000
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TZNAME:UTC
DTSTART:20160101T000000
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BEGIN:VEVENT
DTSTART;TZID=UTC:20160211T160000
DTEND;TZID=UTC:20160211T170000
DTSTAMP:20260528T193609
CREATED:20150916T161135Z
LAST-MODIFIED:20150916T161135Z
UID:122-1455206400-1455210000@rpm.physics.lbl.gov
SUMMARY:Neal Dalal (Univ. Illinois at Urbana-Champaign) "Detecting Dark Matter Substructure Using ALMA"
DESCRIPTION:Abstract: \nDark matter halos surrounding galaxies are expected to contain copious substructure\, in the form of gravitationally bound subhalos.  Local Group observations suggest that our Galaxy has a deficit of substructure (the Missing Satellites Problem)\, possibly indicating new physics in the dark sector.  I will describe how gravitational lensing may be used to measure the amount of dark substructure that exists in typical galaxy halos.  In particular\, I will explain how observations by the newly commissioned ALMA observatory of dusty galaxies from CMB surveys can probe halo substructure.  I will show first results from our ALMA Cycle 2 observations\, and argue that ALMA should be able to answer the Missing Satellites Problem in upcoming years.
URL:https://rpm.physics.lbl.gov/event/reserved-6/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
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