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SUMMARY:MOND and TeVeS Modified Gravity: Testing the Theories - Muhammad Y
 usaf\, Kings College London
DTSTART:20100205T130000Z
DTEND:20100205T140000Z
UID:TALK22907@talks.cam.ac.uk
CONTACT:David Kubiznak
DESCRIPTION:Dark Matter and General Relativity have formed two of the cent
 ral pillars of modern Cosmology since the first detailed analysis of rotat
 ion curves showed their unexpected flat shape\, and they have both gone on
  to be used as a essential components for structure formation and fitting 
 the Cosmic Microwave Background. There have\, however\, been some alternat
 ives presented. Rather than invoking large quantities of invisible matter\
 , MOND and it's relativistic partner TeVeS\, claim to be able to fit the s
 ame data through changing the behaviour of the gravitational force at cert
 ain scales. These theories are\nintroduced in this talk\, as well as some 
 of the work done on testing these theories against rotation curve data. Ex
 panding upon this\, new research done on testing the theories using gravit
 ational lensing survey data in combination with rotation curve analysis ha
 s begun to show that perhaps there are limitations to the claims of the th
 eories to explain the universe in a 'No Dark Matter' paradigm. In this tal
 k\, this research is explored and discussed\, asking what room\, if any\, 
 is left for these modified theories of gravity after such an analysis.
LOCATION:Pavilion B Potter Room (B1.19)
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