BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//ZContent.net//ZapCalLib 1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20130207T103000
DTEND;TZID=Atlantic/Canary:20130207T113000
UID:iactalks-469
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/469
CREATED:2013-02-07T10:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Revealing planet migration and detection of terrestrial planets wit
 h improved spectroscopic tools
DESCRIPTION:Revealing planet migration and detection of terrestrial planets
  with improved spectroscopic tools\nDr. Simon Albrecht\n\nSpectroscopic ob
 servations of stars do not only provide us with valuable information about
  the stars themselves, but over the last years such observations have lead
  to numerous exoplanet discoveries and new insights into planet formation.
  One important clue emerged at the dawn of the field: the existence of hot
  Jupiters, gas giants with orbital distances much smaller than an astronom
 ical unit. We and other groups found some of these planets orbiting their 
 stars on highly inclined or even retrograde orbits. I show how the orienta
 tion of the stellar axis in relation to the orbital plane (obliquity) reve
 als the mechanism by which these planets move inwards. Similar measurement
 s in multiple transiting planet systems, with smaller planets will further
  enhance our understanding of the formation and evolution of planetary sys
 tems. In order to take those measurements we need to improve the way we an
 alyze spectra. I present recent results obtained with such a new technique
 . These include multiple planet systems and results from my "BANANA" surve
 y of close binaries, some of which, such as DI Herculis, also show strong 
 misalignment. The same technique will allow for a reduction of stellar noi
 se in radial velocity surveys, improving our ability to search for smaller
 , more Earth like planets around bright nearby stars.
END:VEVENT
END:VCALENDAR