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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-4471
DTSTART:20170202T213000Z
DTEND:20170202T230000Z
DTSTAMP:20260313T104923Z
LAST-MODIFIED:20170130T134002Z
LOCATION:4421 Sterling Hall\, Coffee and Cookies 3:30 pm\, Talk begins
  at 3:45 PM
SUMMARY:Gas and Star Formation In Minor Mergers: Molecular gas feeding
  the central starbursts in NGC 1614 and the Medusa mergers\, Astronomy
  Colloquium\, Sabine Koenig\, Chalmers University
DESCRIPTION:Galaxy evolution is a fundamental part of the overall evol
 ution of the Universe - from the largest spatial scales (ruled by dark
  matter)\, to the smallest dominated by dissipative baryons that can f
 orm stars and grow supermassive black holes (SMBHs). Interactions and 
 mergers are a known and efficient mechanism for galaxy growth. The foc
 us on merger studies often lies on major mergers (equal mass progenito
 rs) and their evolution although minor mergers (unequal mass progenito
 rs) occur much more frequently. The impact of minor mergers on the gro
 wth of SMBHs and star formation is profound - about half of the star f
 ormation activity in the local Universe is the result of minor mergers
 . Studying molecular gas properties in these systems\, especially how 
 molecular gas is feeding starburst and AGN activities\, therefore give
 s us important clues to the onset and evolution of interaction-trigger
 ed starbursts. Understanding how gas is feeding starburst and AGN acti
 vities in these objects\, in particular\, is paramount to understand t
 he overall evolution of the Universe. In this talk I will present an o
 verview of the molecular gas properties of two exceptional minor merge
 rs: NGC 1614 and the Medusa merger.
URL:https://www.physics.wisc.edu/events/?id=4471
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