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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20161129T123000
DTEND;TZID=Atlantic/Canary:20161129T133000
UID:iactalks-956
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/956
CREATED:2016-11-29T12:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Extrasolar Planets: from stellar activity to the new generation of 
 planet-hunting spectrographs
DESCRIPTION:Extrasolar Planets: from stellar activity to the new generation
  of planet-hunting spectrographs\nDr. Pedro Figueira\n\nAs of today, we kn
 ow now more than 3000 planets orbiting other stars.  The detection of plan
 ets through radial velocity gathers special  attention in the world of exo
 planet characterization, as this technique  will probably allow us to dete
 ct and characterize the first Earth-mass  planet inside the habitable zone
  of a neighbouring star. In this talk I  will discuss the ongoing efforts 
 for developing state-of-the art  spectrographs that permit the detection o
 f an Earth twin, and discuss  one of the most formidable obstacles to the 
 detection of planetary  signals: stellar activity. While for several years
  planetary surveys  simply avoided active stars, today we know that the pr
 esence of  extrasolar planets around a star might suppress stellar activit
 y as we  measure it, or even boost it. I will present the current view of 
 the  intricate relationship between exoplanets and activity, and discuss s
 ome  of the latest works on the topic.
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