BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-9574
DTSTART:20260305T213000Z
DTEND:20260305T223000Z
DTSTAMP:20260413T084038Z
LAST-MODIFIED:20260304T152134Z
LOCATION:4421 Sterling Hall
SUMMARY:Making a Map of Shadows and Stars: Astrophysical Probes of Dar
 k Sectors\, Astronomy Colloquium\, Dr. Caleb Gemmell\, UW-Madison
DESCRIPTION:While cold dark matter has proven a successful theory at e
 xplaining observations of our Universe on scales larger than galaxies\
 , the behaviour of dark matter below these scales is largely unconstra
 ined. Dark sectors\, motivated by considerations from particle physics
 \, provide interesting alternatives to cold dark matter that agree wit
 h current observations but can have wildly different behaviour on smal
 ler scales. In these theories dark matter can have multiple components
  and non-trivial interactions between the 'dark' particles. In this co
 lloquium I will discuss how astrophysical probes can identify and cons
 train these dark sectors\, such as atomic dark matter\, and could be t
 he leading avenue in finding new physics beyond the Standard Model.
\n
URL:https://www.physics.wisc.edu/events/?id=9574
END:VEVENT
END:VCALENDAR