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SUMMARY:Direct Imaging and Characterisation
 of Exoplanets with VLT/SPHE
 RE
: Past\, Present and Future - Arthur Vigan (LAM - Marseille)
DTSTART:20201027T130000Z
DTEND:20201027T140000Z
UID:TALK151882@talks.cam.ac.uk
CONTACT:Dr Annelies Mortier
DESCRIPTION:SPHERE is the new generation exoplanet imager installed at the
  Very Large Telescope. Since 2015\, we have been conducting the large-scal
 e SHINE survey to look for giant exoplanets around a sample of ~500 young\
 , nearby stars (younger than 300 Myr\, below 150 pc). The main goal of SHI
 NE is to constrain for the first time the population of giant exoplanets i
 n the 5-100 AU range\, where previous direct imaging surveys and other det
 ection methods are not sensitive. After introducing the astrophysical cont
 ext and the challenges of direct imaging\, I will present the first statis
 tical contraints on the demography of substellar companions drawn from a s
 ubsample of 150 stars of the SHINE survey. These early results confirm the
  trend already identified that massive companions are more frequent around
  early type stars\, but for the first time we also identify a possible cha
 nge in the formation mechanism between companions around AF stars from com
 panions around FGKM stars. Then\, I will introduce the HiRISE project for 
 the VLT\, where we propose to implement a coupling between SPHERE and the 
 high-resolution spectrograph CRIRES+\, which will hopefully enable the dir
 ect characterisation of known companions\, from SHINE or other\, at very h
 igh spectral resolution.
LOCATION:ONLINE - Details to be sent by email
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