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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-9325
DTSTART:20250724T160000Z
DTEND:20250724T180000Z
DTSTAMP:20260413T102738Z
LAST-MODIFIED:20250701T160058Z
LOCATION:B343 Sterling or https://uwmadison.zoom.us/j/97924697617?pwd=
 gMWKbHI414rP4vwxHaAKOE72qyZnC3.1
SUMMARY:The Ursa Major Moving Group: Membership\, Age\, and Planet Sea
 rch\, Preliminary Exam\, Julia Sheffler\, Physics PhD Graduate Student
DESCRIPTION:Since the discovery of the first exoplanet in 1992\, the n
 umber of confirmed exoplanets has grown to nearly six thousand with mo
 re than seven thousand candidates awaiting confirmation. The rapidly i
 ncreasing quantity of known exoplanets allows scientists to shift thei
 r focus from exoplanet discovery to deeper characterization and popula
 tion studies. Of particular interest are populations of planets with k
 nown and\, especially\, young ages. The challenges associated with est
 imating ages of individual stars limits the existence of accurate age 
 estimates for the majority of confirmed planets. By concentrating on s
 tars within moving groups or clusters\, we overcome many of these chal
 lenges\, opening up a variety of independent age diagnostics. We focus
  on Ursa Major (UMa)\, a young (~400Myr)\, nearby (~25pc) moving group
 . We perform a volume limited kinematic membership analysis\, provide 
 more accurate and precise age estimates\, and\, in time\, search for p
 lanets among UMa stars. Increasing our population of exoplanets with k
 nown ages less than 500 Myr\, with proximity making them amenable to f
 ollow-up observations\, provides critical data for understanding plane
 tary evolution at early timescales.
URL:https://www.physics.wisc.edu/events/?id=9325
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