Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published June 2014 | Published + Accepted Version
Journal Article Open

On-Sky Speckle Nulling Demonstration at Small Angular Separation with SCExAO


This paper presents the first on-sky demonstration of speckle nulling, which was achieved at the Subaru Telescope in the context of the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) Project. Despite the absence of a high-order high-bandwidth closed-loop AO system, observations conducted with SCExAO show that even in poor-to-moderate observing conditions, speckle nulling can be used to suppress static and slow speckles even in the presence of a brighter dynamic speckle halo, suggesting that more advanced high-contrast imaging algorithms developed in the laboratory can be applied to ground-based systems.

Additional Information

© 2014 The Astronomical Society of the Pacific. Received 2013 September 16; accepted 2014 May 04; published 2014 June 11.

Attached Files

Published - Martinache_2014_PASP_126_565.pdf

Accepted Version - 1405.0824.pdf


Files (10.7 MB)
Name Size Download all
406.5 kB Preview Download
10.3 MB Preview Download

Additional details

August 20, 2023
October 20, 2023