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BEGIN:VEVENT
DTSTAMP:20260727T133157Z
LAST-MODIFIED:20121116T203436Z
DTSTART:20070130T201500Z
DTEND:20070130T220000Z
UID:event63@bu.edu
URL:http://physics.bu.edu/internal/events/show/63
SUMMARY:Shedding Light on Dark Matter: Seeing the Invisible with Gravitatio
	nal Lensing
DESCRIPTION:Featuring Marusa Bradac\, KIPAC Institute\, Stanford\nHosted by
	: Emanuel Katz\n\nPart of the Physics Department Colloquia Series.\n\nThe c
	luster of galaxies 1E0657-56 has been the subject of intense ongoing resear
	ch in the last few years.  This system is remarkably well-suited to address
	ing outstanding issues in both cosmology and fundamental physics. It is one
	 of the hottest and most luminous X-ray clusters known and is unique in bei
	ng a major supersonic cluster merger occurring nearly in the plane of the s
	ky\, earning it the nickname "the Bullet Cluster". In this talk I will pres
	ent our measurements of the composition of this system\, show the evidence 
	for existence of dark matter\, and describe limits that can be placed on th
	e intrinsic properties of dark matter particles. In addition\, I will expla
	in how this cluster offers a serious challenge to MOdified Newtonian Dynami
	cs (MOND) theories.
LOCATION: \, \, 
STATUS:CONFIRMED
CLASS:PUBLIC
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