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PRODID:UW-Madison-Physics-Events
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UID:UW-Physics-Event-4762
DTSTART:20180222T213000Z
DTEND:20180222T230000Z
DTSTAMP:20260415T234118Z
LAST-MODIFIED:20180213T161932Z
LOCATION:4421 Sterling Hall\, Cookies and coffee 3:30 pm \, Talk start
 s at 3:45 pm
SUMMARY:The Positive Side of the Galactic Baryon Ledger: the Evidence 
 for Cold Inflow\, Astronomy Colloquium\, Chris Howk\, University of No
 tre Dame
DESCRIPTION:The flow of gas through galactic halos is crucial to the e
 volution of galaxies\, as the nature of such flows can dictate the sta
 r formation properties of galaxies and regulate their metallicity.  Ou
 tflows through the circumgalactic medium (CGM) carry metals away from 
 galaxies (although many may return)\, while infalling metal-poor gas f
 rom the intergalactic medium dilutes the metals in galaxies and provid
 es new fuel for star formation.  The nature of the infalling baryons\,
  in particular\, is of great interest\, but such gas has historically 
 been difficult to identify.  I'll review our work on galaxies both nea
 r and far that suggests the inflow of new matter is robust even in tod
 ay's massive galaxies. 
URL:https://www.physics.wisc.edu/events/?id=4762
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