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SUMMARY:Unveiling the small rocky planets with HARPS-N - Ati Motalebi (Gen
 eva)
DTSTART:20160504T151500Z
DTEND:20160504T160000Z
UID:TALK65066@talks.cam.ac.uk
CONTACT:Dr B.-O. Demory
DESCRIPTION:For understanding the frequency of potentially habitable world
 s and to constrain planet formation theories\, it is critical to discover 
 a sample of planetary systems that populate different regimes.\n\nThe NASA
  Kepler Mission has demonstrated that planets with 1 - 4 Earth radii are c
 ommon around Sun-like stars. A chief objective of the HARPS-N Consortium i
 s to measure accurately the masses and infer compositions for a sample of 
 these small worlds.\nTo study and characterise the planetary systems\, we 
 have at our disposal a sample of non-active and nearby G and K dwarfs thro
 ugh precise radial velocity measurements using HARPS-N. \n\nHARPS-N is an 
 ultra-stable fiber-fed high-resolution spectrograph installed on the TNG t
 elescope at La Palma in the Canary Islands. I report on its performance du
 ring its first three years\, and in particular the discovery of HD 219134:
  the closest exoplanet system to the Sun containing a rocky planet.
LOCATION:Martin Ryle Seminar Room\, Kavli Institute
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