Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-30T18:53:00.143Z Has data issue: false hasContentIssue false
  • English
  • Français

SCExAO: First Results and On-Sky Performance

Published online by Cambridge University Press:  06 January 2014

Thayne Currie ,
Olivier Guyon ,
Frantz Martinache ,
Christophe Clergeon ,
Michael McElwain ,
Christian Thalmann ,
Nemanja Jovanovic ,
Garima Singh  and
Tomoyuki Kudo
Thayne Currie
Affiliation:
Department of Astronomy and Astrophysics, University of Toronto email: [email protected]
Olivier Guyon
Affiliation:
National Astronomical Observatory of Japan
Frantz Martinache
Affiliation:
National Astronomical Observatory of Japan
Christophe Clergeon
Affiliation:
National Astronomical Observatory of Japan
Michael McElwain
Affiliation:
NASA-Goddard Space Flight Center
Christian Thalmann
Affiliation:
Astronomical Institute “Anton Pannekoek”, University of Amsterdam
Nemanja Jovanovic
Affiliation:
National Astronomical Observatory of Japan
Garima Singh
Affiliation:
National Astronomical Observatory of Japan
Tomoyuki Kudo
Affiliation:
National Astronomical Observatory of Japan
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present new on-sky results for the Subaru Coronagraphic Extreme Adaptive Optics imager (SCExAO) verifying and quantifying the contrast gain enabled by key components: the closed-loop coronagraphic low-order wavefront sensor (CLOWFS) and focal plane wavefront control (“speckle nulling”). SCExAO will soon be coupled with a high-order, Pyramid wavefront sensor which will yield > 90% Strehl ratio and enable 106–107 contrast at small angular separations allowing us to image gas giant planets at solar system scales. Upcoming instruments like VAMPIRES, FIRST, and CHARIS will expand SCExAO's science capabilities.

Keywords

instrumentation: adaptive opticsdetectorsstars: planetary systems
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S299: Exploring the Formation and Evolution of Planetary Systems , June 2013 , pp. 34 - 35
Copyright
Copyright © International Astronomical Union 2013 

References

Currie, T., et al., 2012, Ap. Lett., 760, L32Google Scholar
Guyon, O., et al., 2011, in Proc. SPIE, Vol. 8149Google Scholar
Marois, C., et al., 2006, Ap. J, 641, 556CrossRefGoogle Scholar
Martinache, F., et al., 2009, in Proc. SPIE, Vol. 7440Google Scholar
Martinache, F., et al., 2012a, in Proc. SPIE, Vol. 8447Google Scholar
Martinache, F., et al., 2012b, PASP, 124, 1288CrossRefGoogle Scholar
McElwain, M., et al., 2012, in Proc. SPIE, Vol. 8446Google Scholar