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PRODID:UW-Madison-Physics-Events
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UID:UW-Physics-Event-6189
DTSTART:20201110T203000Z
DURATION:PT1H0M0S
DTSTAMP:20260415T010625Z
LAST-MODIFIED:20201106T175638Z
LOCATION:https://uwmadison.zoom.us/j/99199796788
SUMMARY:PGSC Seminar\, Jimena Gonzalez\, Physics PhD Graduate Student
DESCRIPTION:Cosmography with Double Source Plane Lensing<br>
\nOne of 
 the most popular theories that explain the accelerated expansion of th
 e universe proposes the existence of a rare kind of energy that we cal
 l Dark Energy. This energy acts like an "anti-gravity" and it makes ab
 out 70% of the universe total energy. However\, there is still a lot t
 hat we don't know about it and by understanding its nature we could le
 arn more about the evolution of the universe. The purpose of my resear
 ch is to study dark energy by analyzing systems of Double Source Plane
  Lensing (DSPL). These are very rare systems composed by a heavy foreg
 round galaxy and two galaxies located behind\, whose light gets deflec
 ted by the presence of the foreground galaxy and this can be perceived
  as pieces of double rings on the sky. In this talk\, I will explain w
 hy this novel approach is promising as a complementary method to more 
 traditional methods\, what we are doing to find DSPL systems in real d
 ata\, and the future steps of the statistical analysis.
URL:https://www.physics.wisc.edu/events/?id=6189
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