TY - JOUR
T1 - On-sky speckle nulling demonstration at small angular separation with SCExAO
AU - Martinache, Frantz
AU - Guyon, Olivier
AU - Jovanovic, Nemanja
AU - Clergeon, Christophe
AU - Singh, Garima
AU - Kudo, Tomoyuki
AU - Currie, Thayne
AU - Thalmann, Christian
AU - McElwain, Michael
AU - Tamura, Motohide
PY - 2014/6
Y1 - 2014/6
N2 - 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.
AB - 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.
KW - Astronomical Instrumentation
UR - https://www.scopus.com/pages/publications/84903595142
UR - https://www.scopus.com/pages/publications/84903595142#tab=citedBy
U2 - 10.1086/677141
DO - 10.1086/677141
M3 - Article
SN - 0004-6280
VL - 126
SP - 565
EP - 570
JO - Publications of the Astronomical Society of the Pacific
JF - Publications of the Astronomical Society of the Pacific
IS - 940
ER -