Scientific conference in universities or research centers (Scientific conferences in universities or research centers)
Five years of harvest with the vortex coronagraph
Absil, Olivier
2017
 

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Abstract :
[en] While the concept of vortex coronagraphy dates back to 2005, the first science-grade Annular Groove Phase Masks (AGPM), working in the thermal infrared regime, have been installed at the VLT only in 2012. They are now also equipping the Keck telescope and the Large Binocular Telescope, and will soon be at the core of more ground-based high-contrast imaging instruments. In this seminar, I will shortly review the technology development undertaken over the last 12 years, and describe the on-sky operations and performance of the vortex coronagraph. I will then present the main scientific results obtained since 2012, and explain how we have recently adapted deep learning techniques to the problem of post-processing in high-contrast imaging. I will finally discuss the perspectives with new instruments, including the Breakthrough Watch project.
Research center :
STAR - Space sciences, Technologies and Astrophysics Research - ULiège
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Absil, Olivier  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Language :
English
Title :
Five years of harvest with the vortex coronagraph
Publication date :
24 November 2017
Event name :
Invited seminar at Laboratoire d'Astrophysique de Marseille (LAM)
Event organizer :
Laboratoire d'Astrophysique de Marseille
Event place :
Marseille, France
Event date :
2017-11-24
Audience :
International
European Projects :
FP7 - 337569 - VORTEX - Taking extrasolar planet imaging to a new level with vector vortex coronagraphy
Funders :
CE - Commission Européenne [BE]
Available on ORBi :
since 11 December 2017

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