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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:2
UID:UW-Physics-Event-9630
DTSTART:20260501T170000Z
DTEND:20260501T190000Z
DTSTAMP:20260513T145047Z
LAST-MODIFIED:20260424T204637Z
LOCATION:5280 Chamberlin or https://uwmadison.zoom.us/j/94998110368?pw
 d=wS3qgTdbBkBSReLHyhhYR9HLbSZCPC.1
SUMMARY:Taking Inventory of the Most Promising Lensed Radio Sources fo
 r Constraining Fundamental Properties of Dark Matter\, Thesis Defense\
 , Michael Martinez\, Physics PhD Graduate Student
DESCRIPTION:While Dark Matter (DM) makes up roughly 80% of the total m
 atter in the Universe\, its microscopic properties remain one of the b
 iggest questions in Cosmology today. Fortunately\, those properties di
 ctate the distribution and form of macro-scale gravitational structure
 s in the universe\, allowing for indirect studies which can distinguis
 h between competing particle models. One such avenue for this research
  is via strong gravitational lensing systems\, where dark halos in the
  lens substructure and along the line of sight perturb image positions
  and flux. However\, the current population of sources suitable for th
 is analysis is limited\, especially at radio wavelengths where astrome
 tric perturbations are observable. I will first discuss which properti
 es of lens systems make them especially useful for DM constraints and 
 examine the minimum amount of information necessary for such an experi
 ment. Then\, I present the results of two successful searches for new 
 radio lenses in existing radio and optical surveys\, utilizing a new m
 ethod to expand the potential follow-up population for Dark Matter stu
 dies in the future. I conclude with a discussion of the completeness o
 f this population.
URL:https://www.physics.wisc.edu/events/?id=9630
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