BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//ZContent.net//ZapCalLib 1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20180517T103000
DTEND;TZID=Atlantic/Canary:20180517T113000
UID:iactalks-1164
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1164
CREATED:2018-05-17T10:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Binary stars as the key to understand planetary nebulae
DESCRIPTION:Binary stars as the key to understand planetary nebulae\nDr. He
 nri M. J. Boffin\n\nBinarity and mass transfer appear to play a key role i
 n the shaping and,  most likely, in the formation of planetary nebulae (PN
 e), thereby  explaining the large fraction of axisymmetric morphologies. I
  present  the binary hypothesis for PNe and its current status. Recent dis
 coveries  have led to a dramatic increase in the number of post-common env
 elope  binary central stars of PNe, thereby allowing us to envisage statis
 tical  studies. Moreover, these binary systems let us study in detail the 
 mass  transfer episodes before and after the common envelope, and I presen
 t  the evidences for mass transfer - and accretion - prior to the common  
 envelope phase.
END:VEVENT
END:VCALENDAR