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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20101119T000000
DTEND;TZID=Atlantic/Canary:20101119T010000
UID:iactalks-225
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/225
CREATED:2010-11-19T00:00:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Finding extra-solar planets in the presence of stellar jitter
DESCRIPTION:Finding extra-solar planets in the presence of stellar jitter\n
 Miss Victoria Moulds\n\nThe RV method is responsible for discovering the m
 ajority of planets that orbit stars other than our Sun. However, one probl
 em with this technique is that stellar jitter can cause RV variations that
  mimic or mask out a planet signature.  There have been several instances 
 in the past when stars have shown periodic RV variations which are firstly
  attributed to a planet and later found to be due to stellar spots, e.g. B
 D+20 1790 (Figueira, P et al. 2010) and CJ674 (Turnball et al. 204).  So f
 ar the method of choice to overcome these problems is to avoid observing s
 tars which show levels of high activity.  However, this does not solve the
  problem: it merely avoids it.  We have therefore been developing a code w
 hich separates out stellar jitter from the RVs to enable active planets to
  be looked at for planets.  I will talk about our technique as well as sho
 w some exciting preliminary results.
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