BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-4132
DTSTART:20160331T203000Z
DTEND:20160331T220000Z
DTSTAMP:20260419T113719Z
LAST-MODIFIED:20160321T200044Z
LOCATION:4421 Sterling Hall\, Coffee and cookies 3:30 pm\, Talk 3:45 P
 M
SUMMARY:Supernovae as Drivers of Dust Evolution in Galaxies\, Astronom
 y Colloquium\, Tea Temim\, NASA
DESCRIPTION:The presence of dust in galaxies has a profound effect on 
 the physical\, chemical\, and thermal state of their interstellar medi
 a\, but despite its significant role in many astrophysical processes\,
  the nature\, origin\, and evolution of dust are still not well unders
 tood. Dust grains are formed in the ejecta of core collapse supernovae
  (SNe) and mass outflows of evolved stars\, and then subsequently dest
 royed by SN shocks that expand into the surrounding interstellar mediu
 m. The amount of destruction determines whether the galaxy’s dust bu
 dget can be balanced by dust formation in stellar sources\, or if an a
 dditional source is required. I will summarize the recent progress on 
 the study of dust formation and processing in supernova remnants (SNRs
 )\, including observations of dust heated by pulsar winds that reveal 
 important information about the properties of pristine SN-condensed gr
 ains. I will also discuss the balance between dust formation and destr
 uction by SNe and its implications for dust evolution models and our u
 nderstanding of the origin of interstellar dust in galaxies.
URL:https://www.physics.wisc.edu/events/?id=4132
END:VEVENT
END:VCALENDAR