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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20130221T103000
DTEND;TZID=Atlantic/Canary:20130221T113000
UID:iactalks-471
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/471
CREATED:2013-02-21T10:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:The fate of ionizing radiation from massive stars in star-forming g
 alaxies
DESCRIPTION:The fate of ionizing radiation from massive stars in star-formi
 ng galaxies\nProf. Sally Oey\n\nThe fate of ionizing radiation from massiv
 e stars has fundamental  consequences on scales ranging from the physics o
 f circumstellar disks  to the ionization state of the entire universe. On 
 galactic scales, the  radiative feedback from massive stars is a major dri
 ver for the  energetics and phase balance of the interstellar medium in st
 ar-forming  galaxies.  While even starburst galaxies appear to be largely 
 optically  thick in the Lyman continuum, ionization-parameter mapping show
 s that  significant populations of HII regions within galaxies are optical
 ly  thin, powering the diffuse, warm ionized medium.  I will discuss our  
 multi-faceted work to clarify our understanding of radiative feedback in  
 star-forming galaxies from the Magellanic Clouds to starbursts.
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