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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20110613T000000
DTEND;TZID=Atlantic/Canary:20110613T010000
UID:iactalks-288
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/288
CREATED:2011-06-13T00:00:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Imaging polarimetry of circumstellar environments. Science Results 
 of ExPo
DESCRIPTION:Imaging polarimetry of circumstellar environments. Science Resu
 lts of ExPo\nMr. Héctor Canovas\n\nExPo is an imaging polarimeter that ha
 s been built in Utrecht University. ExPo works in the visible, and it comb
 ines the dual-beam technique, together with very short exposure times and 
 a high polarization sensitivity. After four successful campaigns at the Wi
 lliam Herschel Telescope, we have obtained polarization images of circumst
 ellar environments around T Tau's and Herbig Ae's stars, evolved (post-AGB
 ) stars and planets like Venus and Saturn. Our results prove the utility o
 f imaging polarimetry to characterize faint structures around very differe
 nt objects. In this talk I will go through the instrument details, and I w
 ill show some of our science results.
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