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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:1
UID:UW-Physics-Event-8727
DTSTART:20240425T203000Z
DTEND:20240425T213000Z
DTSTAMP:20260413T223452Z
LAST-MODIFIED:20240416T124713Z
LOCATION:4421 Sterling Hall
SUMMARY:Goodbye to “Chi-by-Eye” : Results from a Bayesian Analysis
  of Photometric Binaries in Open Clusters\, Astronomy Colloquium\, Aar
 on M Geller\, Northwestern University
DESCRIPTION:Binary and higher-order multiple stars are ubiquitous\, an
 d their evolution can be dramatically influenced by their environment.
   Binaries in the field evolve essentially in isolation\, while those 
 within star clusters may experience frequent close stellar encounters 
 that can significantly modify\, and even disrupt\, their orbits.  Most
  stars like our Sun are believed to be born in star clusters\, many of
  which dissolve to populate the field.  Therefore\, our interpretation
  of the observed binary populations in star clusters and the field (an
 d even to some extent our understanding of star formation)\, relies on
  how a population of stars evolves through this more dynamically activ
 e stage in a star cluster.   In this talk\, I will provide an overview
  of the work my team and collaborators are pursuing to identify and an
 alyze photometric binaries in galactic open clusters\, in order to tes
 t predictions of star cluster models and learn about the dynamical sta
 te of our galactic open cluster population. 
URL:https://www.physics.wisc.edu/events/?id=8727
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